Backup

Backup patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

10/19/06 - 20060236051 - High-speed snapshot method
When a snapshot of data is taken, it is after a write request comes from the host equipment that old data on the source-side magnetic disk to the snapshot-side magnetic disk; therefore, it takes a long time before new data is actually written in the source-side magnetic disk. To overcome ...

10/19/06 - 20060236050 - Computer system, computer, and remote copy processing method
When a failure in remote copy is reported from storage 103A, host 102A starts the host-based remote copy. At this time, first the remote copy is performed starting from the copy to an unfinished I/O. when it becomes possible to restart the storage-based remote copy, the host 102A first stops ...

10/19/06 - 20060236049 - Remote copy system and remote copy method
A remote copy system in which duplex by means of remote copy of a table can be managed from a database management system is provided, wherein a host computer defines a pair formation between a first storage device serving as a copying source and a second storage device serving as ...

10/19/06 - 20060236048 - Method for remote copy pair migration
During an asynchronous remote copy process for a plurality of asynchronous remote copy pairs, a copy of data in a migration source primary storage area is stored in a migration destination primary storage area, and the copy of data in the migration source primary storage area is also stored in ...

10/19/06 - 20060236047 - Method for replicating snapshot volumes between storage systems
An apparatus, system, and method for replicating a snapshot volume in a first storage system to a second storage system includes mapping information corresponding to data in the first storage system that is transferred from the first storage system to the second storage system so that a file system in ...

10/12/06 - 20060230244 - System and method for performing auxillary storage operations
Systems and methods for protecting data in a tiered storage system are provided. The storage system comprises a management server, a media management component connected to the management server, a plurality of storage media connected to the media management component, and a data source connected to the media management component. ...

10/12/06 - 20060230243 - Cascaded snapshots
In one embodiment, a method comprises receiving a signal indicative of a request to create a child snapshot volume of a parent snapshot volume, and in response to the signal creating a data structure for the child snapshot volume, the data structure comprising a plurality of data fields to store ...

10/05/06 - 20060224846 - System and method to support single instance storage operations
Systems and methods for single instance storage operations are provided. Systems constructed in accordance with the principals of the present invention may process data containing a payload and associated metadata. Often, chunks of data are copied to traditional archive storage wherein some or all of the chunk, including the payload ...

10/05/06 - 20060224845 - Computer system for remote copy
Provided is a computer system capable of maintaining consistency of data stored in logical volumes. The computer system includes: a storage system including a disk controller which controls data read/write in a disk drive; and a host computer which transmits a request to the storage system, wherein the disk controller ...

10/05/06 - 20060224844 - Data copying method and apparatus in a thin provisioned system
Data migration includes copying between normal volumes and thin provisioned volumes. Data in a normal volume can be copied to a thin provisioned volume. Alternatively, data structures can be provided to facilitate converting a normal volume into a thin provisioned volume without actual copying of data. Copying from a thin ...

09/28/06 - 20060218365 - Method and apparatus for mirroring objects between storage systems
The system is disclosed in which a storage system having data, and meta-data which describes attributes of the data including its address, can copy the data to a secondary system in a more efficient manner. The storage system identifies the blocks which contain the data described in the meta-data, then ...

09/28/06 - 20060218364 - Method and apparatus for monitoring the quantity of differential data in a storage system
Copy-on-write snapshot processing is performed on a storage system in order to produce snapshots of one or more logical volumes in the storage system. The write I/O operations made to the storage system are observed for a certain period of time. Based on the observations an estimate of the size ...

09/28/06 - 20060218363 - Apparatus, system, and method for automatic backup of related data
An apparatus, system, and method are disclosed for automatically backing up groups of related data. The apparatus includes a plurality of data cells capable of storing data. The apparatus also includes a grouping module configured to group one or more of the data cells into a related group. A tracking ...

09/28/06 - 20060218362 - Network-accessible memory
A network-accessible memory (NAM) element comprises a substrate, a memory mounted to the substrate, network interface circuitry and logic circuitry. The network interface circuitry implements a network physical layer and is mounted to the substrate. The logic circuitry is mounted to the substrate and is coupled to the network interface ...

09/21/06 - 20060212669 - Control method for storage system, storage system, storage control apparatus, control program for storage system, and information processing system
The present invention provides a control method for a storage system comprising the first process for copying information stored by a first storage apparatus which is accessed by an upper echelon apparatus to a second storage apparatus, the second process for judging whether or not storage contents of the first ...

09/21/06 - 20060212668 - Remote copy method and storage system
A remote copy method for copying data within a first storage apparatus to a second storage apparatus via a network, includes transmitting data from the first storage apparatus in units of first buffer sets each formed by a plurality of first recording exclusive buffers within the first storage apparatus, and ...

09/21/06 - 20060212667 - Storage system and storage control method
A storage system has a cache memory, a side-file being a storage area prepared in memory, and a copy source storage device. Each time write data is received, the storage system writes the write data to the copy source storage device via the cache memory, and also writes the received ...

09/14/06 - 20060206678 - Volume providing system and method
A host computer HA1 or the like is provided with a target program 3 that receives the provision of logical volumes 212, a volume interface program 12A that provides an interface for the logical volumes 212 to the target program 3, and a volume filter program 12B that selects one ...

09/14/06 - 20060206677 - System and method of an efficient snapshot for shared large storage
The present invention relates to an efficient snapshot technique based on a mapping for a large logical volume shared in multiple hosts. According to the present invention, problems of time delays in a conventional snapshot technique is solved by employing a FAB and an SSB, which are bits representing whether ...

09/14/06 - 20060206676 - Tape image on non-tape storage device
A method and system for facilitating the performance of data backups facilitates the storage of information being backed up on a non-tape storage device in a format that facilitates the subsequent transfer of the information to a tape storage device without substantial further processing by a computer. ...

09/07/06 - 20060200640 - Storage system with cascaded copy targeting and enhanced integrity
A storage controller includes an interface to host computer apparatus and an interface to a plurality of controlled storage apparatus. The storage controller comprises a host write component operable to send a request to write a data object to a source data image at one of said plurality of controlled ...

09/07/06 - 20060200639 - System and method for computer backup and recovery using incremental file-based updates applied to an image of a storage device
A backup and recovery system for a computer deals with the creation and subsequent incremental updating of an image copy of the data. This image copy is stored on a separate storage device (“backup storage device”) also connected to the computer system. By storing the image data on the backup ...

09/07/06 - 20060200638 - Checkpoint and consistency markers
Described are a method, computer program product, and system for obtaining a copy of source data in a consistent state. One or more file operations having a corresponding time sequence which modify said source data are recorded. A request for a copy of the source data in a consistent state ...

09/07/06 - 20060200637 - Techniques for producing a consistent copy of source data at a target location
Described area system and computer program product for producing a point in time copy of source data. A set of records corresponding to a time ordered series of recorded file operations as applied to said source data is received. The set of records includes one or more consistency point markers, ...

08/31/06 - 20060195670 - Multi-site remote-copy system
Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included ...

08/31/06 - 20060195669 - Storage system and storage control device
A first storage control device is provided with a virtual LU for showing a logical volume possessed by a second storage control device as if it were its own volume. When data processing requested from a host device is, for example, a specific processing of large load (such as direct ...

08/31/06 - 20060195668 - Remote copy for a storage controller with reduced data size
Two data centers located in the vicinity are connected using a synchronous transfer copy function, and one of the data centers is coupled with a third data center disposed at a remote location by an asynchronous remote copying function. The order whereat a storage sub-system located in the vicinity has ...

08/31/06 - 20060195667 - Remote copy for a storage controller with consistent write order
Two data centers located in the vicinity are connected using a synchronous transfer copy function, and one of the data centers is coupled with a third data center disposed at a remote location by an asynchronous remote copying function. The order whereat a storage sub-system located in the vicinity has ...

08/31/06 - 20060195666 - Switching method of data replication mode
In remote data replication between storage systems, there are cases where the storage extent capacity used as the temporary storage extent in the storage system will incur waste. In a system having a management computer, a host computer, a first storage system, and a second storage system, when maintaining the ...

08/24/06 - 20060190692 - Method and apparatus for backup and recovery using storage based journaling
A storage system maintains a journal of journal entries and at lease one snapshot of one or more data volumes. By assigning a unique sequence number to journal and snapshot, it is easy to find a journal which can be applied to the snapshot. A technique is described for detecting ...

08/10/06 - 20060179261 - Writable read-only snapshots
A technique enables creation and use of a writable, read-only snapshot of an active file system operating on a storage system, such as a multi-protocol storage appliance. The writable, read-only snapshot comprises a read-only “image” (file) residing in a snapshot and a writable virtual disk (vdisk) residing in the active ...

08/03/06 - 20060174076 - Data processing system including storage systems
A data processing system includes a first storage system including a first host and a first storage subsystem. The first host has access to a first copy manager that is operable to manage a data replication operation. A second storage system includes a second host and a second storage subsystem. ...

08/03/06 - 20060174075 - Method for creating and preserving snapshots in a storage system
The reduction of the volume capacity necessary to copy the snapshot can be achieved. When an operation volume is updated, the data before the update is saved in a difference storing volume, and the data of the two volumes, that is, the operation volume and the difference storing volume are ...

08/03/06 - 20060174074 - Point-in-time copy operation
A method and service creates and maintains a virtual point-in-time copy of source data stored within a source storage unit. The method/service receives at least one request to create a point-in-time copy of the source data. However, instead of creating a copy of the source data, the invention creates a ...

07/27/06 - 20060168412 - Method for controlling storage device controller, storage device controller, and program
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus ...

07/27/06 - 20060168411 - Method for controlling storage system, and storage control apparatus
A method for controlling a storage system including a host computer, and a first and a second storage control apparatuses each receiving a data input/output request from the host computer and executing a data input/output process for a storage device in response to the request, comprises connecting a first communication ...

07/27/06 - 20060168410 - Systems and methods of merge operations of a storage subsystem
A first computer is adapted to communicate with another computer and to a redundant storage subsystem external to the first computer. The first computer comprises memory comprising state information and a processor that receives a state from another computer. The received state is indicative of whether the other computer may ...

07/20/06 - 20060161748 - Backup/recovery system and methods regarding the same
A backup/recovery system and methodology that securely backs up every data and status of a computer system. The backup/recovery system is utilized for protecting a computer system, having a volatile storage device and a nonvolatile storage device. The backup system comprises a data processing unit for processing data stored in ...

07/20/06 - 20060161747 - Distributed control system and control device thereof
A control device that is used in a distributed control system and controlling a control target while serially transmitting data to a reception side control device by a pulse train signal, wherein when the control target is normal, state quantity data representing the state quantity of the control target is ...

07/20/06 - 20060161746 - Directory and file mirroring for migration, snapshot, and replication
A NAS switch provides mirroring in a NAS storage network that is transparent to client. A source file server exports an original NAS file handles indicative of object locations on the source file server to the NAS switch. The NAS switch modifies the original NAS file handles to an internal ...

07/13/06 - 20060155946 - Method for taking snapshots of data
A method for taking snapshots of data. In an embodiment, a first map data structure is obtained that records locations for a plurality of data blocks. A second map data structure is formed that is initially empty of locations, the second map data structure representing the snapshot after the snapshot ...

07/13/06 - 20060155945 - System, method, and computer program product for multi-master replication conflict resolution
A method, computer program product, and a data processing system for performing data replication in a multi-mastered system is provided. A first data processing system receives a replication command generated by a second data processing system. A conflict is identified between a first entry maintained by the first data processing ...

07/06/06 - 20060149910 - Apparatus and method for reproducing multimedia data using the virtual file system
An apparatus and a method that creates a virtual file system by combining directory information of data recorded on an information storage medium and directory information of data downloaded from a network and reproducing multimedia data with reference to the virtual file system. The reproducing apparatus includes: a local storage ...

06/29/06 - 20060143414 - Method and apparatus for increasing an amount of memory on demand when monitoring remote mirroring performance
A method and storage system for increasing an amount of memory in a queuing area on. The storage system includes first and second storage subsystems connected to each other via a path. A primary volume in the first storage subsystem and a remote secondary volume in the second storage subsystem ...

06/29/06 - 20060143413 - Storage system with multiple copy targeting and disk failure protection
A method and apparatus is disclosed in which a storage controller cooperable with a host and a plurality of controlled storage is provided to localize an impact of a failure to a target disk in an affected segment. The storage controller includes a host write component to write a data ...

06/29/06 - 20060143412 - Snapshot copy facility maintaining read performance and write performance
To make a snapshot copy of a production dataset concurrent with read/write access, a record is kept of the blocks in the production dataset that have been written to since the point-in-time of the snapshot. The first write to each data block is done as a “fast write” to a ...

06/22/06 - 20060136688 - Redundant sas storage virtualization subsystem and system using the same, and method therefor
A redundant external storage virtualization computer system. The redundant storage virtualization computer system includes a host entity for issuing an IO request, a redundant external SAS storage virtualization controller pair coupled to the host entity for performing an IO operation in response to the IO request issued by the host ...

06/22/06 - 20060136687 - Off-chip data relocation
The on-chip copy process is extended so that the data may be copied between two blocks that may be on different chips, different planes on the same chip, or the same plane of the same chip. More specifically, the methods described here provide a single data copying mechanism that allows ...

06/22/06 - 20060136686 - Log shipping data replication with parallel log writing and log shipping at the primary site
A log-shipping data replication system employs a primary server coupled to a standby server. In operation, the primary server concurrently flushes log data at the primary server and transmits the same log data from the primary server to the standby server. The primary server further transmits at least one buffer ...

06/22/06 - 20060136685 - Method and system to maintain data consistency over an internet small computer system interface (iscsi) network
A method and system is disclosed to maintain data consistency over an internet small computer system interface (iSCSI) network, for disaster recovery and remote data replication purposes. Data consistency and replication is maintained between primary and secondary sites geographically distant from each other. According to the method, a primary journal ...

06/15/06 - 20060129775 - Method, system and apparatus for releasing storage in a fast replication environment
Regions of data storage involved with fast replication relationships are managed and tracked in order to maintain the integrity of the data on the source and target volumes. In response to a delete operation referencing specified regions of storage, pending fast replication transfers are completed for source regions, fast replication ...

06/15/06 - 20060129774 - Storage system and method for acquisition and utilization of snapshots
A computer system including: a computer having a display to display information of a plurality of backup times, and an inputting device by which a user selects a backup time of the plurality of backup times; and, a storage system coupled to the computer and having an interface controller receiving ...

06/15/06 - 20060129773 - Copy controller and method thereof
After a first copy request is received and copy operation from a copy source area to a copy destination area is activated, information indicating an update section is recorded when a data update of at least one of either the copy source area or the copy destination area is generated. ...

06/15/06 - 20060129772 - Data processing method and system
It is an object of the present invention to use the resources of various sites in an effective manner. The first site has a first DB access part in use. The second site has a second DB access part in use in addition to a first DB access part for ...

06/15/06 - 20060129771 - Managing data migration
A method for performing a data migration task on an on-line data storage system comprises computing a migration utility, which is a function of the expected time taken to complete the data migration task and generating migration requests for performing the data migration task, where the data migration task is ...

06/15/06 - 20060129770 - Resource management for data storage services
Provided are a method, system, and an article of manufacture, wherein resources corresponding to at least one copy pool are acquired, and wherein the at least one copy pool has been defined for a first primary storage pool of a storage hierarchy. The acquired resources are retained, in response to ...

06/15/06 - 20060129769 - System and method for migration to manufactured information handling systems
Data migration directly from legacy to replacement information handling systems is managed over a set of one or more switches. The legacy information handling system boots with a manufacturing operating system provided from a data migration information handling system server and runs a data migration application also provided from the ...

06/08/06 - 20060123213 - Data processing system having a plurality of storage systems
It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host ...

06/08/06 - 20060123212 - Remote copy system having multiple data centers
A remote copy system includes a first storage system including a first storage controller and a first data volume. The first storage controller is configured to control data access requests to the first data volume. The first storage system is configured to store write data in the first data volume ...

06/08/06 - 20060123211 - Method for optimizing a snapshot operation on a file basis
To implement snapshot operations of a storage volume, a snapshot agent is invoked to initiate the snapshot operations of the storage volume, to establish access to a directory of one or more files to be excluded from the snapshot operations of the storage volume, and to process each write request ...

06/08/06 - 20060123210 - Method for logically consistent backup of open computer files
A method for providing logically-consistent computer file backups in an operating environment whose file backup provisions rely on application programs recognizing a freeze writes command but where the operating system also hosts programs that do not recognize such a command. The method intercepts a system level command issued during the ...

06/08/06 - 20060123209 - Devices and methods of performing direct input/output operations using information indicative of copy-on-write status
A file server maintains information indicative of which, if any, data stored on a storage medium, before being changed, needs to be copied to a snapshot. The file server communicates, to a client, at least a portion of the information for use by the client in determining whether to perform ...

06/08/06 - 20060123208 - Data center virtual tape off-site disaster recovery planning and implementation system
A system for planning and verifying off-site disaster recovery plans as well as implementing alternate fall back operations in the event of a disaster. The system includes at least one primary mainframe computer having an inboard catalog component, a primary emulated device controller connected to the primary computer, and a ...

06/01/06 - 20060117154 - Data processing system
A data processing system includes at least a first storage system, a second storage system and a third storage system. The third storage system maintains a replication of data stored in the first storage system. When updating data in the first storage system, the first storage system updates the replication ...

05/25/06 - 20060112244 - Automatically managing the state of replicated data of a computing environment
The state of data of a communications environment is automatically managed. The automatic management is provided via a facility that automatically obtains the current state of the data and uses that information to place the data in an appropriate state for a selected event to be processed. The data is, ...

05/25/06 - 20060112243 - Application transparent autonomic availability on a storage area network aware file system
Techniques are provided for locating data. Mapping information for blocks associated with a file is provided. It is determined that a copy service has copied source blocks to target blocks. It is determined whether the mapping information should be updated to refer to the target blocks. Then, updated mapping information ...

05/18/06 - 20060107007 - Data processing system
A data processing system has a plurality of storage systems. In this system, data replication is performed at high speed and efficiency while maintaining data integrity. In addition, when failure has occurred in a configuration element, the time necessary to resume the data replication is reduced. In accordance with an ...

05/18/06 - 20060107006 - Persistent snapshot management system
A persistent snapshot is taken and maintained in accordance with a novel method and system for extended periods of time using only a portion of a computer readable medium of which the snapshot is taken. Multiple snapshots can be taken in succession at periodic intervals and maintained practically indefinitely. The ...

05/18/06 - 20060107005 - Apparatus, system, and method for time sensitive copy
An apparatus, system, and method are disclosed for copying data from a volatile memory device to a plurality of persistent storage devices in response to a loss of primary power. The apparatus includes a section module, a stripe module, and a write module. The section module sections a data image ...

05/18/06 - 20060107004 - Recovery from failure in data storage systems
Provided are a method, system, and article of manufacture, wherein a command is received at a first computational device coupled to a first adapter that is capable of allowing access to a data storage to the first computational device. The first computational device sends the command to a second computational ...

05/11/06 - 20060101217 - Computer system, management method and storage network system
A storage network system that can be kept running despite a failure in a host computer is provided. A computer system includes: first, second and third storage systems which store data and are connected to one another; a primary host computer connected to the first storage system; a secondary host ...

05/11/06 - 20060101216 - Disk array apparatus, method of data recovery, and computer product
A primary disk and a secondary disk that duplicates the data in the primary disk are connected to a host computer via a disk-array control unit. The disk-array control unit includes a plurality of central management units. Each central management unit includes a cache memory for writing data accessed, and ...

05/11/06 - 20060101215 - Storage control apparatus and external storage apparatus
A storage control apparatus includes a plurality of temporary storage units that are managed in a redundant manner by data mirroring, and temporarily store data input from an outside source; a temporary-storage control unit that controls input and output of the data to the temporary storage units; and a mirroring ...

05/11/06 - 20060101214 - Method for managing a storage system
To suppress consumption of a differential volume by using a differential snapshot and a volume snapshot in combination. A program for managing a storage system including an application server that provides an application composed of a plurality of programs, a plurality of first volumes that store data that the programs ...

05/11/06 - 20060101213 - Remote copy system and control method thereof
This invention provides a control method of a remote copy system for establishing a disaster recovery system for transmitting data in database by a copy function between storage devices possessed by the storage device so as to minimize a public line necessary for the data transmission. In a remote copy ...

05/11/06 - 20060101212 - Incrementally sychronizing occasionally-connected mobile databases, preserving horizontal filter scope consistency by using client pre-image
A method and system for synchronizing data on a first device with data at a second device, includes: determining a pre-image of the data on the first device according to a filter after a previous synchronization with the data at the second device; determining a current image of the data ...

05/04/06 - 20060095697 - Method and apparatus for data relocation between storage subsystems
A storage subsystem that has detected the necessity of the data relocation determines whether the data relocation is possible or not from one storage unit to another within the particular storage subsystem. A virtualization device is notified in the case where the data relocation in the particular subsystem is impossible. ...

05/04/06 - 20060095696 - Quality of service for remote copy operations in storage systems
A system is provided for storage of journal data from a primary site to a secondary site with a predefined quality of service. In one implementation, the primary storage system stores information for updating data stored on the primary disk array in the form of a history of updates made ...

05/04/06 - 20060095695 - Copy operations in storage networks
Exemplary storage network architectures, data architectures, and methods for creating and using snapdifference files in storage networks are described. One exemplary method may be implemented in a processor in a storage network. The method comprises receiving a request to execute a snapclone operation; generating, in response to the received service ...

04/27/06 - 20060090050 - Remote management commands in a mass storage system
A method for managing activity of a data storage system including a primary storage facility and a secondary storage facility. The method includes mirroring a first logical unit in the primary facility on a second logical unit in the secondary facility, and receiving a command to perform a data storage ...

04/27/06 - 20060090049 - Data migration method and apparatus
The apparatus (3, 11) comprises a first input part (5, 43) which inputs first utilization state information that indicates information relating to the utilization state of first shared data in the respective first data control devices, a second input part (5, 43) which inputs second utilization state information that indicates ...

04/27/06 - 20060090048 - Storage system and storage control device
The present invention makes it possible, by virtualizing an external memory resource as an internal memory resource, to effectively utilize memory resources, and to synchronize the storage contents of a virtualized inner volume and a real inner volume. The first storage device comprises an internal volume and a virtual internal ...

04/20/06 - 20060085613 - Data backup method and system
A disk array has storage regions provided to store the management information for each disk volume of the backup data, and an interface is provided through which the management information for each disk volume is read from and written in by an external computer so that the backup data of ...

04/20/06 - 20060085612 - Remote copy control method, storage sub-system with the method, and large area data storage system using them
Two data centers located in the vicinity are connected using a synchronous transfer copy function, and one of the data centers is coupled with a third data center disposed at a remote location by an asynchronous remote copying function. The order whereat a storage sub-system located in the vicinity has ...

04/20/06 - 20060085611 - Method of managing multistage copied data
Provided is a computer system comprising a system management server, an application server coupled to the system management server, and a storage system coupled to the application server. The storage system comprises logical volumes which constitute a pair through data copying. The system management server comprises a data management unit ...

04/20/06 - 20060085610 - Computer system
During the normal operation state of a computer system 1000, the data stored in a primary storage system 200P is copied to an intermediate storage system 200I via synchronous copying and the data stored in the intermediate storage system 200I is copied to a secondary storage system 200R via asynchronous ...

04/20/06 - 20060085609 - Remote copy system
To provide a computer system constituting a multitarget array and utilizing a remote copy technique for backing up data, in which when a failure occurs in a primary site, a new pair is formed between remaining two secondary sites without copying all data. A first secondary site is associated with ...

04/20/06 - 20060085608 - System and method for controlling the updating of storage device
The present invention makes it possible to preserve any and all update data relating to the updating of a storage device. The present invention is devised so that if a first storage device (3S) is updated by writing data into this first storage device, the update data relating to the ...

04/13/06 - 20060080516 - Apparatus, system, and method for copy protection
An apparatus, system, and method are disclosed for facilitating copy protection. The apparatus includes a definition module, a request module, and a determination module, each coupled to a first storage sub-system. The definition module is configured to define a protection definition for a plurality of electronic storage devices of the ...

04/13/06 - 20060080515 - Non-volatile memory backup for network storage system
A data storage system including a primary data storage device and a backup data storage device stores data with enhanced performance. The primary data storage device has a primary data storage device memory for holding data, and the backup data storage device has a backup volatile memory, a backup non-volatile ...

04/06/06 - 20060075202 - Synchronized mirrored data in a data storage device
A data storage device mirrors data on a data storage medium. The multiple instances of data are synchronized in order to optimize performance of the reading and writing, and the integrity of the data. Preferably, a data storage device is allowed to defer writing multiple copies of data until a ...

04/06/06 - 20060075201 - Hard disk device with an easy access of network
An AV appliance mounted with a hard disk device is reinforced by assuring a home server function provided on an inherent hard disk device. The hard disk device is comprised of a hard disk, a network interface unit, a CPU, a memory and a power supply and additionally comprised of ...

04/06/06 - 20060075200 - Snapshot system
To obtain a volume image of a given generation. A storage system of this invention includes a disk device in which an original volume is provided to read/write data from a host, a copy volume is provided to store a copy of the original volume of a predetermined timing, and ...

03/30/06 - 20060069892 - Method, apparatus, and computer readable medium for managing back-up
Duplicate data obtained by copying and a volume containing it are flexibly managed according to the attribute of the file to be copied by a storage apparatus as is required by a user. When receiving a backup instruction for the file to be backed up, an instruction for a method ...

03/30/06 - 20060069891 - Computer system
A method include a configuration definition creation step of writing configuration information on a primary site into a storage subsystem; a data transfer step of copying the configuration information, which is written into a storage device, to a storage subsystem in a secondary site over a network; a data reception ...

03/30/06 - 20060069890 - Triangular asynchronous replication with minimal synchronous storage
Storing recovery data includes providing chunks of data to a remote destination, where each chunk of data represents data written before a first time and after a second time and where the second time for one of the particular chunks corresponds to a first time for a subsequent one of ...

03/30/06 - 20060069889 - Remote copy system
A reliable remote copy system is provided at low costs. The remote copy system includes a first storage system connected to a first upper level computing system to transmit or receive data to or from the first upper level computing system; a second storage system connected to the first storage ...

03/30/06 - 20060069888 - Method, system and program for managing asynchronous cache scans
A method, apparatus, and article of manufacture containing instructions for the management of data in a point-in-time logical copy relationship between a source and multiple target storage devices. The method consists of establishing first and second point-in-time logical copy relationships between a source storage device and at least two target ...

03/30/06 - 20060069887 - Triangular asynchronous replication
Storing recovery data includes providing chunks of data to a remote destination, where each chunk of data represents data written before a first time and after a second time and where the second time for one of the particular chunks corresponds to a first time for a subsequent one of ...

03/23/06 - 20060064559 - Method and apparatus for storing data on storage media
A method is described where data is copied from a plurality of first discrete physical storage means to a plurality of second discrete physical storage means, where the data is split across the plurality of first discrete physical storage means, the method comprising the steps of copying blocks of the ...

03/23/06 - 20060064558 - Internal mirroring operations in storage networks
An exemplary storage network and methods of operation are disclosed which make use of data consistent internal mirrors within a storage device. The exemplary storage network comprises first, second, and third storage cells, each of which include physical storage media and a storage controller that controls data operations with the ...

03/16/06 - 20060059322 - Data storage system and process
Computer systems may loose data when a failure occurs within a system. To counteract such loss of data a backup system may be employed. Common backup systems make a copy of either of the data on a storage device or the data, which has changed, on a storage device. The ...

03/09/06 - 20060053263 - Systems and methods for generating a storage-related metric
The present invention provides systems and methods for data storage. A hierarchical storage management architecture is presented to facilitate data management. The disclosed system provides methods for evaluating the state of stored data relative to enterprise needs by using weighted parameters that may be user defined. Also disclosed are systems ...

03/09/06 - 20060053262 - Systems and methods for detecting & mitigating storage risks
The present invention provides systems and methods for data storage. A hierarchical storage management architecture is presented to facilitate data management. The disclosed system provides methods for evaluating the state of stored data relative to enterprise needs by using weighted parameters that may be user defined. Also disclosed are systems ...

03/09/06 - 20060053261 - Hierarchical systems and methods for providing a unified view of storage information
The present invention provides systems and methods for data storage. A hierarchical storage management architecture is presented to facilitate data management. The disclosed system provides methods for evaluating the state of stored data relative to enterprise needs by using weighted parameters that may be user defined. Also disclosed are systems ...

03/09/06 - 20060053260 - Computing system with memory mirroring and snapshot reliability
A computing system is provided with enhanced data reliability by implementing mirroring and snapshot functionality of the system memory. In the computing system, a processor executes its programs from a first region of a physical memory. Using instructions from the system itself, or from an external console, the first region ...

03/09/06 - 20060053259 - Framework for taking shadow copies and performing backups in a networked environment
A framework for taking shadow copies and performing backups in systems that may have data spread across multiple machines. A requester communicates names to a primary coordinator and requests the creation of shadow copies of all the volumes associated with the names. The primary coordinator communicates with one or more ...

03/02/06 - 20060047932 - Protocol for communicating data block copies in an error recovery environment
The present invention provides an exemplary system and method for storing information for later recovery. One or more first memory addresses within a recovery storage are assigned to one or more data blocks. One or more second memory addresses within a primary storage associated with the one or more data ...

03/02/06 - 20060047931 - Method and program for creating a snapshot, and storage system
This invention includes: a step (S1) of receiving a snapshot creation request from a client computer; a step (S3) of obtaining, upon reception of the snapshot creation request, a usage ratio of a second volume by the update differences; a step (S2) of obtaining a use history of the update ...

03/02/06 - 20060047930 - Storage system and data relocation control device
The present invention achieves data relocation in accordance with a user's policies, in an environment where a plurality of storage devices are combined. The volumes belonging to storage devices A-D are managed virtually integrally. A host recognizes a plurality of storage devices A-D as a single virtual storage device. The ...

03/02/06 - 20060047929 - Storage system
A storage network system includes a storage device including a volume for recording data, and a network connection device, and a host including a device for reading/writing data from/into the volume through a network. The host includes a security inspection program for performing security inspection of data communicated through a ...

03/02/06 - 20060047928 - Storage switch asynchronous replication
Systems and methods in accordance with embodiments are provided for the replication of data from virtual logical units to remote virtual logical units. Change logs can be provided at a primary storage switch including a primary VLU to indicate changes made to the primary VLU between replications. The change log ...

03/02/06 - 20060047927 - Incremental provisioning of software
Methods and apparatuses provide for incremental provisioning of software for a processing system. For instance, a processing system may include a machine accessible medium and a processor in communication with the machine accessible medium. In addition, instructions encoded in the machine accessible medium may cause the processing system to automatically ...

03/02/06 - 20060047926 - Managing multiple snapshot copies of data
A method for providing multiple, different point-in-time, and read and write accessible snapshot copies of a base disk in storage arrays is disclosed. The method improves the performance of multiple snapshots by linking them together and sharing only one copy of a unique data block. This method also has the ...

03/02/06 - 20060047925 - Recovering from storage transaction failures using checkpoints
The disclosed technology facilitates recovery from storage-related failures by checkpointing copy-on-write operation sequences. An operation sequence incorporating such checkpoints into a copy-on-write can include the following: receive a write request that identifies payload data to be written to a first data store, read original data associated with the first data ...

02/23/06 - 20060041727 - Apparatus, system, and method for differential backup using snapshot on-write data
An apparatus, system, and method are disclosed for differential data backup using snapshot on-write data. A snapshot module maintains an on-write data structure that captures a point-in-time or temporal instance of a data set by tracking modifications to data blocks of a data set. A backup module copies the data ...

02/23/06 - 20060041726 - Mirrorpc computer backup system
Backup software operates in a client server environment wherein the clients may be transiently connected to the network. All the backup software resides and executes on the server, therefore no client side software is required. The backup software uses a mirror file including the names of the clients and predetermined ...

02/16/06 - 20060036821 - Storage switch mirrored write sequence count management
A storage switch is disclosed that facilitates mirroring of data. For example, a target is mirrored when an identical (or almost identical) copy of the data is stored in two or more separate physical data stores. Because the various data stores may not be homogenous, they may provide for different ...

02/09/06 - 20060031650 - Storage control apparatus and method thereof
In a storage system having a first storage control apparatus and a second storage control apparatus, the first storage control apparatus has: a first memory; a second memory; an input/output control unit for data transfer information in the second memory; and a data transfer control unit having a data buffer ...

02/09/06 - 20060031649 - Data storage system and method of hierarchical control thereof
A method of selecting logical volumes that are the targets for data migration to equilibrate the load on a system, based on the accessing data of the physical drives and logical drives under the disk array controllers, without increasing the load of the disk array controller. An external manager communicates ...

02/09/06 - 20060031648 - Storage device
A storage device can flexibly apply a dynamic load distribution and a performance expansion to an unexpected peak performance demand changing in a time sequence such as a web server and a contents delivery at the minimum cost. In the storage device, a load condition of a logical volume is ...

02/09/06 - 20060031647 - Storage system and data processing system
A storage system comprises a data set storage region or storing a data set containing data and update data for managing this data, and a control section. The data set storage region is divided into a plurality of storage regions including a first storage region and a second storage region. ...

02/09/06 - 20060031646 - Storage remote copy system
In the conventional storage system, consistency is ensured only for writing from a single storage. Asynchronous remote copying and local replication are also alternately suspended in the conventional system, so that the suspension time increases and the volume in which consistency is obtained becomes old. Two local replicas are prepared, ...

02/02/06 - 20060026373 - Data migration method and a data migration apparatus
The management computer 600 copies data in the volume 111 within the storage device 100A to the volume 115 within the storage device 100B. Upon completion of copy processing, the volume 115 is set to write protect. Then, the data in the volume 111 is read from the storage device ...

01/26/06 - 20060020762 - Storing data replicas remotely
A method of storing data is disclosed. The method comprises receiving a request to write data to a specified location on a first storage device. The method further comprises storing on a second storage device, prior to writing the data to the specified location, a copy of a base data ...

01/19/06 - 20060015699 - Storage device and system for providing communications buffer reservation function
A storage device (1) communicating with a host computer and other storage devices through a network is characterized in that the storage device (1) secures memory buffers for temporarily storing data in a remote copy operation carried out between the storage devices. A network memory (100) in the storage device ...

01/19/06 - 20060015698 - Method and apparatus for data backup
A data backup method and a data backup apparatus in which a part of a user data area in a volatile memory, wherein data is lost when the power is turned off, is predesignated as a backup area and data is rapidly backed up in an emergency. The data backup ...

01/19/06 - 20060015697 - Computer system and method for migrating from one storage system to another
The present invention provides a method for migrating from a source storage system to a target storage system. The method comprises the steps of: defining a volume defined on a drive to be migrated in the source storage system as an external volume of the target storage system; causing the ...

01/19/06 - 20060015696 - Integrated storage device
Techniques are provided for creating a backup copy. An instant virtual copy operation is received for copying one or more blocks of data from a source storage to a target storage. For each block of data to be copied from the source storage, a location identifier for the block of ...

01/19/06 - 20060015695 - Method of device mirroring via packetized networking infrastructure
A method of device-mirroring via a packetized networking infrastructure may include: receiving, at a storage node N in a daisy-chained architecture, a write command from an entity representing a node N−1 in the daisy-chained architecture; representing the write command as an original set of one or more packets; making M ...

01/12/06 - 20060010300 - Remote copy system maintaining consistency
To provide a remote copy system including: a plurality of primary storage systems and a plurality of secondary storage systems; each of the secondary storage systems including a secondary logical volume that stores a copy of the data stored in a primary logical volume of the primary storage system; a ...

01/12/06 - 20060010299 - Systems and methods to avoid deadlock and guarantee mirror consistency during online mirror synchronization and verification
Systems and methods can provide mirrored virtual targets and online synchronization and verification of the targets while avoiding deadlock, inconsistencies between members of the target, and false verification failures. A lock within the storage switch can limit the number of outstanding commands for a physical target to one during synchronization ...

01/05/06 - 20060004973 - System for caching data
A data storage system includes a first storage processor including a first memory device; a second storage processor including a second memory device; and a third memory device coupled to the first storage processor and the second storage processor. The first and second storage processors are interconnected to enable mirroring ...

12/29/05 - 20050289310 - Volume providing system and method
A host computer HA1 or the like is provided with a target program 3 that receives the provision of logical volumes 212, a volume interface program 12A that provides an interface for the e logical volumes 212 to the target program 3, and a volume filter program 12B that selects ...

12/29/05 - 20050289309 - Storage control system and storage control method
A computer system comprises a primary volume 22P having a plurality of storage blocks P, and a differential volume 22D having a plurality of storage blocks D. Differential data corresponding to one among the plurality of storage blocks P is stored in at least one among the plurality of storage ...

12/15/05 - 20050278494 - Memory controller and method for copying mirrored memory
A memory controller performs a mirror copy function in a way that allows processor accesses to memory to continue during the mirror copy operations that make up the mirror copy function. Data integrity of mirror copy operations is assured by protocols set up in the memory controller. The result is ...

12/15/05 - 20050278493 - System and method for providing backup service continuity using a virtual backup service path
Provided are a system and method for using a plurality of virtual backup service paths to dynamically switch between storage devices based on a plurality of scenarios. In one example multiple backup service groups are defined. Multiple scenarios that each reference at least one virtual backup service path are also ...

12/08/05 - 20050273565 - Data processing system
A data processing system has a plurality of storage systems. In this system, data replication is performed at high speed and efficiency while maintaining data integrity. In addition, when failure has occurred in a configuration element, the time necessary to resume the data replication is reduced. In accordance with an ...

12/01/05 - 20050268057 - Storage system
In a storage system comprising multiple storage devices with different interfaces, the characteristics, including the type of interface, of the storage devices on which the source volume is constructed are checked, a volume having the characteristics that match them is selected as the destination volume, and the contents of the ...

12/01/05 - 20050268056 - Remote mirroring in a switched environment
A mechanism to support remote mirroring of storage devices by data storage systems in a one-to-many switched environment. Each data storage system includes a disk director that is adapted to control at least one device group that is supported in a mirrored configuration with a corresponding device group controlled by ...

12/01/05 - 20050268055 - Remote copy with worm guarantee
In the case in which data in a storage system A is remotely copied to a storage system B, it is not taken into account whether the data of the remote copy is WORM data. In the case in which a setting is made such that data stored in a ...

12/01/05 - 20050268054 - Instant virtual copy to a primary mirroring portion of data
Techniques are provided for performing a copy operation. An instant virtual copy operation is issued from a first portion of data to a primary mirroring portion of data, wherein the primary mirroring portion of data corresponds to a secondary mirroring portion of data, and wherein the primary mirroring portion of ...

11/24/05 - 20050262319 - Computer system and a method of replication
In a cluster-structured disk subsystem, when creating a volume for an online backup separately from a volume for a normal I/O, it is desirable to be able to achieve such a creation for any volume under subsystem. Further, with an increase in the capacity of the subsystem, it becomes more ...

11/24/05 - 20050262318 - System, device, and method for improved mirror mode operation of a semiconductor memory device
By using the combination of a pre-existing command signal that is common to two memory devices and a non-shared command signal that is applied individually to each of the devices, embodiments of the invention may operate in a mirror mode, thereby preventing unwanted signal degradation due to stub loads. Because ...

11/24/05 - 20050262317 - Data processing apparatus and disk access control method with data replication for the same
A disk volume access controlling method includes the steps of, setting a threshold number of times of accesses from a computer to a predetermined disk volume per time unit, acquiring a number of times of accesses to the predetermined disk volume per time unit, seeking whether or not the number ...

11/24/05 - 20050262316 - Backup acquisition method and disk array apparatus
A backup acquisition method and a disk array apparatus for implementing the method are provided for acquiring a whole or a differential backup from a disk array apparatus to a backup device. A snapshot of the contents of disks in the disk array apparatus is captured in response to a ...

11/17/05 - 20050257015 - Computer system
The computer system comprises a first and second computer, at least one first storage system connected to the first computer, and a plurality of second storage systems connected to the second computer as well as being connected to the at least one first storage system. The first computer issues to ...

11/17/05 - 20050257014 - Computer system and a management method of a computer system
Transfer of data and replication of data among several storage devices are executed without imposing a load on the computer connected to the storage system. For example, a first host computer monitors usage rates of transfer groups TG11, TG12 and physical path usage rate on a storage device interconnect physical ...

11/10/05 - 20050251636 - Method for controlling storage device controller, storage device controller, and program
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/output request from the information processing apparatus ...

11/10/05 - 20050251635 - Backup method
The invention provides a method of backing up data, in which plural information processing units connected to a network are not required to monitor each other, and autonomously send data to the other information processing units to buck up the data. The method, using the plural information processing units connected ...

11/10/05 - 20050251634 - Point in time copy between data storage systems
A target data storage system comprises a peer-to-peer communication link interface for linking the target to a source data storage system, and data storage for storing point in time copy data received from the source via the peer-to-peer communication link interface. Information is established at the target relating logical identification ...

11/10/05 - 20050251633 - Apparatus, system, and method for synchronizing an asynchronous mirror volume using a synchronous mirror volume
An apparatus, system and method for synchronizing an asynchronous mirror volume using a synchronous mirror volume by tracking change information when data is written to a primary volume and not yet written to an asynchronous mirror, and storing the change information on both the primary storage system and the synchronous ...

11/03/05 - 20050246510 - System and method for combining data streams in pipelined storage operations in a storage network
Described herein are systems and methods for multiplexing pipelined data for backup operations. Various data streams are combined such as by multiplexing by a multiplexing module. The multiplexing module combines the data from the various data streams received by receiver module(s) into a single stream of chunks. The multiplexing module ...

11/03/05 - 20050246509 - Tape drive apparatus, method and computer program product
A validity time interval for backup data of a data backup operation is determined. The validity time interval is limited, e.g., by an expiration date and/or an activation date. Validity date indicating the validity time interval is stored in non-volatile memory of the tape cartridge, such as a cartridge memory, ...

10/27/05 - 20050240740 - Data processing system
In the data processing system which maintains data duplication between sites having a host computer and a storage apparatus, transfer-data volume and cost in communication line between the sites are controlled and the load of both primary and secondary hosts is controlled, and a data update management function at the ...

10/20/05 - 20050235122 - Method and apparatus for computing file storage elements for backup and restore
A method and apparatus for method for transferring files between a primary storage system and a backup and restore system is described. The system generates collapsed extents which are used to specify data to be backed up to a backup and restore system. The backup and restore system backs up ...

10/20/05 - 20050235121 - Remote copy method and remote copy system
In a configuration in which it is necessary to transfer data from a first storage system to a third storage system through a storage system between the storage systems, there is a problem that it is inevitable to give an excess logical volume to a second storage system between the ...

10/13/05 - 20050228957 - Data replication in a storage system
For a storage system having plural control units to which plural disk devices are connected, in the method for creating replication in a volume of the disk devices connected to different control units, when receiving update I/O of a replication source during an initial copy for replication, the reflection of ...

10/06/05 - 20050223181 - Integrated circuit capable of copy management
A method according to one embodiment may include generating, by copy manager circuitry comprised in an integrated circuit, one or more copy commands to copy data from a first mass storage device to a second mass storage device via the integrated circuit. Of course, many alternatives, variations, and modifications are ...

10/06/05 - 20050223180 - Accelerating the execution of i/o operations in a storage system
An apparatus and method for providing a storage system snapshot copy while allowing the execution of I/O operations without latency. A host request to write a data chunk to a production volume is served by writing the new data chunk to a journal, and upon writing, a response message is ...

09/29/05 - 20050216683 - Disk array system and data transfer method thereof
A disk array system includes first and second transfer paths, a plurality of hard disks each having two connection ports connected to the first and second transfer paths, respectively, and a plurality of controllers connected to the first and second transfer paths, in which the first transfer path is connected ...

09/29/05 - 20050216682 - Storage system and remote copy method for storage system
This invention provides a secondary disk array device with functions for data management of a plurality of generations. The disk array device 1 of a primary site comprises remote copy functions. When updating of a primary volume 4 is performed by a host 3, differential data 5 occurs. The disk ...

09/29/05 - 20050216681 - Method, system, and article of manufacture for copying of data in a romote storage unit
Provided are a method, system, and article of manufacture for copying data. A request is received at a first storage control unit having a first set of volumes, wherein the first storage unit is coupled via a link to a second storage control unit having a second set of volumes ...

09/29/05 - 20050216680 - Device to allow multiple data processing channels to share a single disk drive
The present invention relates to an intermediate hard disk drive adapter for a plurality of data processing channels and, in particular, to an inexpensive high performance, high reliability intermediate hard disk drive adapter for a number of data processing channels to share a single hard disk drive, each seeing the ...

09/29/05 - 20050216679 - Hard disk automatic hardware-based scheduled archiving
The present invention relates to an intermediate hard disk drive adapter for a computer system and, in particular, to an inexpensive high performance, high reliability intermediate hard disk drive adapter for a computer system that allows periodic multiple data archiving. ...

09/22/05 - 20050210210 - Storage subsystem and storage system
The first storage subsystem, when new data is written in a first memory device beyond a certain timing, writes pre-updated data prior to update by said new data into a pre-updated data memory region and, in addition, updates snapshot management information that expresses a snapshot of a data group within ...

09/22/05 - 20050210209 - Storage device and information management system
Using a snapshot function, a remote copy is efficiently created. Data for a snapshot is converted into a first bitmap of differential data for a remote copy. The conversion is performed in advance at appropriate chronological intervals. Furthermore, when the snapshot function splits, a second bitmap of cascade differential data, ...

09/15/05 - 20050204108 - Apparatus and method for copying, backing up and restoring logical objects in a computer storage system by transferring blocks out of order or in parallel backing up and restoring
Method and apparatus are disclosed for copying and backing up logical objects in a computer storage system. The logical objects are comprised of data blocks. The data blocks may be copied in any order. The data blocks may be copied or written from a storage media, such as a tape, ...

09/15/05 - 20050204107 - Method and apparatus for dumping memory
The present invention relates to a method and apparatus for dumping memory. More particularly a computer-implemented method of saving at least some data within volatile storage to non-volatile storage when a computer system panics is described. The method includes the steps of: the computer system defining a specified portion of ...

09/15/05 - 20050204106 - Distributed asynchronous ordered replication
Described are methods, systems, and apparatus, including computer program products, for achieving distributed asynchronous ordered replication. Distributed asynchronous ordered replication includes creating a first journal for a first set of I/O data, creating a second journal for a second set of I/O data, and temporarily preventing committal, of the ...

09/15/05 - 20050204105 - Remote copy system
In asynchronous remote copy, there is time difference between data update and remote copy in a primary storage system. The primary storage system loses data unreflected on a secondary storage system in disaster and cannot control the amount of data lost. The primary storage system obtains the data reflection state ...

09/08/05 - 20050198457 - Duel controller system for dynamically allocating control of disk units
A disk array system of the type that each controller has an independent and dedicated cache. The disk array system can change control of a desired volume between desired controllers without suspending the system. When volumes are taken over between controllers, a switch-source controller de-stages data of a subject volume ...

09/08/05 - 20050198456 - Data backup system and method for the same
It is an object to eliminate possibilities in which newest backup data cannot be created owing to overwriting of data update records when performing backup using a duplicating system. The data backup system, including an active system as a computer system of a backup source and a standby system as ...

09/08/05 - 20050198455 - Point in time remote copy for multiple sites
A method for copying data to multiple remote sites includes transmitting data from a first volume in a primary storage system to a back-up volume provided in a secondary storage system. The primary storage system is located at a primary site, and the secondary storage system is located at a ...

09/08/05 - 20050198454 - Switching between virtual ordered writes mode and synchronous or semi-synchronous rdf transfer mode
Transitioning from a first data transfer mode to a second data transfer mode that is different from the first data transfer mode includes a primary storage device receiving a plurality of data writes while being in the first data transfer mode, the primary storage device associating data writes begun after ...

09/08/05 - 20050198453 - Data synchronization of multiple remote storage
A storage system comprises a plurality of storage subsystems. One storage subsystem as a succeeding subsystem is configured to receive and store one or more blocks of data from another storage subsystem as a preceding subsystem. Each block of data has an associated sequence number in ascending order. The memory ...

09/08/05 - 20050198452 - Method and apparatus of remote copy for multiple storage subsystems
A system and method for synchronizing remote copies within a multiple storage network apparatus, incorporates the steps of receiving a plurality of timestamps, comparing the timestamps with a plurality of timestamps stored in a remote copy table, updating a synchronize time value stored by a synchronized time parameter, and receiving ...

09/08/05 - 20050198451 - Method and apparatus of media management on disk-subsystem
A method for migrating a block of data within a storage system includes migrating first data stored in a first storage volume of a first storage subsystem to a second storage volume in a second storage subsystem. The first data is a block of data that is presented to a ...

09/08/05 - 20050198450 - Method, system, and program for managing data migration
Provided are a method, system, and program for managing data migration from one data organization type to another. In one embodiment, a migration manager defers writing progress indicators to reduce data write operations during the migration process. In one embodiment, progress indicators are written to configuration areas of disk drives ...

09/01/05 - 20050193181 - Data migration method and a data migration apparatus
The management computer 600 copies data in the volume 111 within the storage device 100A to the volume 115 within the storage device 100B. Upon completion of copy processing, the volume 115 is set to write protect. Then, the data in the volume 111 is read from the storage device ...

09/01/05 - 20050193180 - Method and apparatus for data migration with the efficient use of old assets
A method and apparatus for performing data migration in storage systems implementing the remote copy function and virtualizing existing storage devices in a new storage system after migrating the existing storage devices. According to the invention when a new storage system is connected to an old storage system destined for ...

09/01/05 - 20050193179 - Daisy-chained device-mirroring architecture
A method of operating a daisy-chained device-mirroring architecture (where such an architecture may include a storage node N configured to mirror data on an entity representing node N−1, a storage node N+1 daisy-chain-coupled via a first main link to, and configured to mirror data on, the node N, and a ...

08/25/05 - 20050188166 - Apparatus and method for online data migration with remote copy
In one embodiment, a new storage system is connected to an old storage system destined for replacement. Prior to starting online data migration, remote copy configuration information from the old storage system is migrated to the new storage system. The aforementioned allows either the new storage system or the old ...

08/25/05 - 20050188165 - Method, system, and program for a system architecture for an arbitrary number of backup components
Disclosed is a technique for transferring data using multiple backup components. Responsibility for a portion of data is assigned to a first backup component. When a data update for the portion of data is received at the first backup component from a primary source, the data update is mirrored to ...

08/18/05 - 20050182910 - Method and system for adding redundancy to a continuous data protection system
A method for adding redundancy to a continuous data protection system begins by taking a snapshot of a primary volume at a specific point in time, in accordance with a retention policy. The snapshot is stored on a secondary volume, and the snapshot is cloned and stored on a third ...

08/11/05 - 20050177693 - Asynchronous mirroring in a storage area network
A method and a system for simultaneously mirroring of one or many data objects from one or many local storage devices (SDL) to one or many remote storage devices (SDRx). The one or many data objects may be used during mirroring. A mirroring functionality includes the application of a succession ...

08/11/05 - 20050177692 - Shared data mirroring apparatus, method, and system
A network component useful in tracking write activity by writing logs containing write address information is described. The tracking component may be used in networked systems employing data mirrors to record data block addresses written to a primary storage volume during the time a data mirror is unavailable. The tracking ...

08/04/05 - 20050172093 - Systems and methods of information backup
A system for backing up and restoring information, includes at least one computer system including information to be backed up and restored, a storage device for receiving at least part of the information to be backed up and for storing and backing up the information. A controller includes a scheduling ...

07/28/05 - 20050166023 - Remote storage disk control device and method for controlling the same
A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device ...

07/28/05 - 20050166022 - Method and apparatus for copying and backup in storage systems
A technique is described for controlling a storage system in which primary storage volumes and replication storage volumes are present. A boundary of a potential failure of the primary storage volumes and the replication storage volumes is determined, and using that boundary, replication storage volumes are assigned to assure that ...

07/21/05 - 20050160243 - Point in time storage copy
A storage system permits virtual storage of user data by implementing a logical disk mapping structure that provides access to user data stored on physical storage media and methods for generating point-in-time copies, or snapshots, of logical disks. A snapshot logical disk is referred to as a predecessor logical disk ...

07/21/05 - 20050160242 - Asynchronous hybrid mirroring system
An apparatus, program product and method backs up computer data by organizing update requests into groups. All update requests in one group complete concurrently before requests of a subsequent group complete. ...

07/14/05 - 20050154848 - Duplication apparatus and method
A technique whereby, when data stored for each block in a storage device are duplicated, a block that is not to be copied is designated to avoid duplication, so that the period required to perform the duplication process for the storage device is reduced. The technique utilizes a duplication apparatus ...

07/14/05 - 20050154847 - Mirrored data storage system
A disk mirror data storage system which includes a plurality of mirror facets, at least one local and at least one remote accessed by an IP network. The system includes a mirror volume manager which, in response to a request to store data, performs a synchronous write of the data ...

07/14/05 - 20050154846 - Method, system, and program for copying tracks between a primary storage and secondary storage
Provided are a method, system, and program for copying tracks between a primary controller and secondary controller. A track is received from the primary controller that is part of a copy job comprising a sequence of tracks to copy along with a sequence number of the received track and a ...

07/14/05 - 20050154845 - Maintaining consistency for remote copy using virtualization
Provided are a method, system, and article of manufacture for copying storage, wherein a first unit receives data updates from a second unit. The data updates are stored in a plurality of physical storage locations associated with the first unit. Links are generated to at least one of the plurality ...

07/07/05 - 20050149684 - Distributed failover aware storage area network backup of application data in an active-n high availability cluster
A SAN-based cluster backup system and method are provided. The system and method are automated, do not use a LAN for backup data, and are made aware of application failover events. The system and method are composed of two main components: a backup service, and a primary coordinator. The backup ...

07/07/05 - 20050149683 - Methods and systems for data backups
Techniques for preserving data in a data storage system are described herein. In one aspect, when a command to preserve data in a data storage system is received, a first input and output (I/O) process is executed in the data storage system which exists at a selected time relative to ...

06/30/05 - 20050144407 - Coordinated storage management operations in replication environment
A method, system, computer system, and computer-readable medium for maintaining up-to-date, consistent copies of primary data without the need to replicate modified data when the data were modified as a result of an operation that is not an application-driven write operation captured during replication. Selected storage management operations are performed ...

06/30/05 - 20050144406 - Data storage systems and processes, such as one-way data mirror using write mirroring
Methods and systems for data storage are described herein. In one aspect of the invention, an exemplary process includes receiving a first data being directed to a first storage volume, receiving a second data being directed to a second storage volume, writing the first data, as part of a first ...

06/23/05 - 20050138313 - Remote storage disk control device with function to transfer commands to remote storage devices
A storage device system includes an information processing device and at least first and second storage devices. The first and second storage devices are equipped with first and second storage volumes, respectively. The information processing device generates first data including a first instruction that is to be executed by the ...

06/23/05 - 20050138312 - Method for acquiring snapshot
In a storage switch to control a snapshot operation in the file unit, the delay in the writing operation of a host due to a data saving operation is prevented. In a snapshot acquiring method, the memory usage in a switch is reduced to create a snapshot. The storage switch ...

06/23/05 - 20050138311 - Method and circuit for preservation of user data in a mobile terminal
Disclosed are a method and a circuit for preserving user data temporarily stored in a volatile memory of a mobile terminal. When there is a change in the user data, the changed user data is formatted in a file and backed up in a nonvolatile memory. Therefore, it is possible ...

06/23/05 - 20050138310 - Backup system and method and program
A remote site stores data received from a currently-used site and transfers the stored data to a proximal site. The proximal site stores the data received from the remote site and transfers the stored data to the currently-used site. The currently-used site crosschecks the data returned from the proximal site ...

06/23/05 - 20050138309 - Data duplication control method
In the present invention, when there is a change in a group of volumes managed by a host computer, data duplication processing is immediately carried out against the changed volume. The host computer 10 comprises a volume-managing portion(unit) 12, a data duplication-controlling portion(unit) 11 which executes the data duplication of ...

06/23/05 - 20050138308 - Remote copy system
A remote copy technique according to which data of a primary volume is migrated while continuing remote copy processing and receiving access requests from a host. A remote copy system comprises a first storage system having a first primary volume, a second storage system having a second primary volume and ...

06/23/05 - 20050138307 - Storage performance improvement using data replication on a disk
In some embodiments, disk accesses made during normal operation of a disk drive are monitored. One or more data blocks on the disk drive are identified as candidates for replication on the disk drive in response to the monitoring. Each of the identified data blocks are replicated in at least ...

06/23/05 - 20050138306 - Performance of operations on selected data in a storage area
A method, system, computer-readable medium, and computer system to perform operations on selected data in a storage area. Storage locations in the storage area can be identified by a requester for performing an operation only on the data in the identified storage locations. The requester can be an application managing ...

06/16/05 - 20050132157 - Storage device, backup method and computer program code of this storage device
A storage device for which restoration of data is possible without the need for excess equipment includes mirrored storage units for online use and for backup, and is capable of performing a data backup while continuing input and output of data. The storage device is further provided with an update ...

06/16/05 - 20050132156 - Remote copy control method
A volume remote-copy control method is disclosed to automatically define and control a transmitting route of a remote command for remote copy control. An identifier of a first disk subsystem of a first volume is obtained from a volume pair list. The first volume is a copy source or a ...

06/16/05 - 20050132155 - Data processing system having a plurality of storage systems
It is an object of the present invention to conduct data transfer or data copying between a plurality of storage systems, without affecting the host computer of the storage systems. Two or more auxiliary storage systems 100B, 100C are connected to a primary storage system 100A connected to a host ...

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