摘要:
A data processing system in which resources of a remote copy are prevented from being wasted uselessly during a data-retention period is provided. The data processing system includes: an application server 2000, a primary storage system 4000 which stores data used by the application server in a first storage volume, a secondary storage volume 5000 which stores the copy of data stored in the primary storage system in a second storage volume, and a management server 1000 which controls the primary storage system and secondary storage system; and the primary storage system and secondary storage system are configured to include an access control table in which an access inhibited or access permitted state with respect to the first storage volume and second storage volume is stored, and a remote copy pair table in which a corresponding relation between the first storage volume and the second storage volume is stored.
摘要:
A storage system which has flash memories constituting a storage area and a function of placing and handling the flash memories in on-line mode and off-line mode, and which stores and manages management information of the flash memories in on-line mode. The storage system includes: when some or all of flash memory in on-line mode is placed in off-line mode, creating a management area in off-line mode in the flash memories by moving existing data in an area used as the management area to an area other than the management area; writing the management information of the flash memories to the created management area; and placing the flash memories in off-line mode.
摘要:
Arrangements having multiple second storage systems which each include a restore control unit for controlling restoration processing, in which a data element in a journal stored in a journal storage area is written into a secondary logical volume, and a storage device control unit for controlling a storage device in the second storage system. The restore control unit is provided with a function for suspending the restoration processing. A first value indicating the usage condition of the journal storage area in the second storage system is obtained, and the restore control unit suspends the restoration processing in accordance with the obtained first value. The storage device control unit then executes power saving on a storage device relating to the secondary logical volume.
摘要:
A computer system including a copy source volume and a copy target volume which may be selectably PAIRED or SPLIT. User management information stores: an entry indicating that a first user is permitted to effect a PAIR operation and a PATH operation; and, an entry indicating that a second user is permitted to effect a PATH operation. Operation management information indicates permitted PATH and PAIR operations in relation to each user and a volume's PAIR or SPLIT status, and stores: an entry indicating that the first user is permitted to effect the PAIR operation in which the PAIR status is PAIR, or is SPLIT WITH BACKUP DISABLED; and, an entry indicating that the second user is permitted to effect the PATH operations in which the PAIR status is SPLIT WITH BACKUP ENABLED. PAIR management information stores the PAIR status and the BACKUP ENABLED or DISABLED status.
摘要:
A second storage system comprises a restore control unit for controlling restoration processing, in which a data element in a journal stored in a journal storage area is written into a secondary logical volume, and a storage device control unit for controlling a storage device in the second storage system. The restore control unit is provided with a function for suspending the restoration processing. A first value indicating the usage condition of the journal storage area in the second storage system is obtained, and the restore control unit suspends the restoration processing in accordance with the obtained first value. The storage device control unit then executes power saving on a storage device relating to the secondary logical volume.
摘要:
A management computer monitors an allocated capacity of a source virtual volume and an allocated capacity of a virtual pool having a storage area allocated to a destination virtual volume in a storage, judges whether the allocated capacity of the source virtual volume can be covered in the virtual pool or not, and informs the user of a result that data migration fails when the allocated capacity of the source virtual volume cannot be covered. When the allocated capacity of the source virtual volume cannot be covered, the management computer uses another storage area to increase the capacity of the virtual pool. Accordingly, when data migration is performed between the virtual volumes, capacities of physical areas allocated to the source virtual volume and the destination virtual volume can be grasped so that the data migration can be performed accurately between the source virtual volume and the destination virtual volume.
摘要:
To reduce a burden imposed on a system administrator in restore operation, there is provided a computer system including at least one storage system, at least one host computer, and a management computer, in which: the storage system includes: a first processor; a first memory; and a disk drive; the host computer includes: a second processor; and a second memory; the management computer includes: a third processor; and a third memory; the second processor executes plurality of applications; the first processor and the second processor create check points to be used to maintain consistency of data at predetermined timing for the respective applications; and a third processor obtains recovery conditions, which are conditions for a check point to be used for a recovery, and identifies a check point, which satisfies the obtained conditions, from the created check points for the respective applications.
摘要:
The invention provides a method for computing the appropriate capacity of a journal volume based on the operating patterns of backup and recovery performed by the user, and composing a recovery system that enables recovery to be performed in a short time using journals. The invention provides a computer system comprising a storage system 120 having a volume 124, a managing computer 100 and a host computer 110, wherein the storage system 120 retains a journal of data stored in the volume and a volume replicating the data stored in the volume, and restoring a volume data at any update time point based on the journal and the replicated volume, and upon receiving operation from a user regarding the volume retaining the journal, the managing computer 100 acquires a registration creation demand including a recovery time objective which is the time to be restored and/or a recovery point objective which is the recovery time point and a journal retention period which is the period for retaining the journal, monitors the journal of data stored in the volume, computes the quantity of the journal, and determines the capacity of the volume for retaining the journal.
摘要:
A management computer monitors an allocated capacity of a source virtual volume and an allocated capacity of a virtual pool having a storage area allocated to a destination virtual volume in a storage, judges whether the allocated capacity of the source virtual volume can be covered in the virtual pool or not, and informs the user of a result that data migration fails when the allocated capacity of the source virtual volume cannot be covered. When the allocated capacity of the source virtual volume cannot be covered, the management computer uses another storage area to increase the capacity of the virtual pool. Accordingly, when data migration is performed between the virtual volumes, capacities of physical areas allocated to the source virtual volume and the destination virtual volume can be grasped so that the data migration can be performed accurately between the source virtual volume and the destination virtual volume.
摘要:
A storage system allocates a data storage area in response to an access request from a first computer if the capacity of a first physical storage device configuring a first logical storage area, provided to the first computer, is equal to or lower than a predetermined threshold. The storage system associates the first logical storage area with another physical storage device, which is different from the first physical storage device associated with a second logical storage area provided to the first computer and a second computer, and allocates a data storage area from the another physical storage device if the capacity of the first physical storage device associated with the first logical storage area exceeds the predetermined threshold.