FlashCopy details
Use this page to obtain detailed information about the state of a virtual volume FlashCopy in the IBM® TS7700 Grid.
To view details about a virtual volume FlashCopy, enter the VOLSER belonging to the virtual volume in the VOLSER of Virtual Volume field on the Virtual volume details page, then click the Get Details button. The VOLSER must be six alphanumeric characters.
If a FlashCopy exists that differs from the live virtual volume, the
FlashCopy field is displayed with a value of Created
on the Virtual volume details table. Click Created to
start the FlashCopy details page.
Restriction: This page is
displayed only if the grid contains a disk-only, non-deduplication
cluster.
- DR Family Name
- The name of the cluster family created for disaster recovery tests.
- FlashCopy Time
- The date and time at which the FlashCopy was created. Also called FlashCopy time zero.
- FlashCopy details
- The FlashCopy details table displays details and status of a FlashCopy of a virtual volume in a cluster.
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Table 1. FlashCopy details and status Volume detail Description Volser The VOLSER of the virtual volume. This value is a six-character number that uniquely represents the virtual volume in the virtual library. Media Type The media type of the virtual volume. Possible values are: - Cartridge System Tape
- Enhanced Capacity Cartridge System Tape
Maximum Volume Capacity (Channel or Device) The maximum size (MiB) of the virtual volume. This capacity is set initially upon insert, based on the media type of a virtual volume. Note: If an override is configured for the data class's maximum size, it is only applied when a volume is mounted and a load-point write (scratch or fast ready mount) occurs. During the close operation for the volume, the new override value is bound to the volume and cannot change until the volume is reused. Any further changes to a data class override are not inherited by a volume until it is written again during a fast ready mount and then closed.Current Volume Size (Channel or Device) Size of the data (MiB) for this unit type. Note: Refer to the topic Data storage values in the Related Information section for additional information concerning the use of binary prefixes.Channel Size The number of channel bytes written to the volume. Also called Nominal Size. If the selected cluster is a deduplication cluster, this value is the same as the Current Volume Size.
If the selected cluster is not a deduplication cluster, this value is not applicable and shown as " —".
Current Owner The name of the cluster that currently owns the latest version of the virtual volume. Currently Mounted Whether the virtual volume is currently mounted in a virtual drive. If this value is Yes these qualifiers are also shown: - vNode
- The name of the vNode that the virtual volume is mounted on.
- Virtual Drive
- The ID of the virtual drive the virtual volume is mounted on.
Cache Copy Used for Mount The name of the cluster that owns the cache chosen for I/O operations for mount. This selection is based on consistency policy, volume validity, residency, performance, and cluster mode. Mount State The mount state of the logical volume. Possible values are: - Mounted
- The volume is mounted.
- Mount Pending
- A mount request has been received and is in progress.
- Recall Queued/Requested
- A mount request has been received and a recall request has been queued.
- Recalling
- A mount request has been received and the virtual volume is currently being staged into tape volume cache from physical tape.
Cache Management Preference Group The preference level for the storage group; it determines how soon volumes are removed from cache following their copy to tape. This information is only displayed if the owner cluster is a TS7700T and the volume is assigned to a cache partition that is greater than 0. Possible values are: - 0
- Volumes in this group have preference to be removed from cache over other volumes.
- 1
- Volumes in this group have preference to be retained in cache over other volumes. A "least recently used" algorithm is used to select volumes for removal from cache if there are no volumes to remove in preference group 0.
- Unknown
- The preference group cannot be determined.
Last Accessed by a Host The most recent date and time a host accessed a FlashCopy of the virtual volume. Time that is recorded reflects the time zone in which the user's browser is located. Last Modified The date and time the virtual volume was last modified by a host. Time that is recorded reflects the time zone in which the user's browser is located. Category The number of the Fast Ready category to which the virtual volume belongs. A Fast Ready category groups virtual volumes for quick, non-specific use. Storage Group The name of the Storage Group that defines the primary pool for the pre-migration of the virtual volume. Management Class The name of the Management Class applied to the volume. This policy defines the copy process for volume redundancy. Storage Class The name of the Storage Class applied to the volume. This policy classifies virtual volumes to automate storage management. Data Class The name of the Data Class applied to the volume. This policy classifies virtual volumes to automate storage management. Volume Data State The state of the data on the virtual volume. Possible values are: - New
- The virtual volume is in the insert category or a non-fast-ready category and data has never been written to it.
- Active
- The virtual volume is currently located within a private category and contains data.
- Scratched
- The virtual volume is currently located within a fast ready (scratch) category and its data is not scheduled to be automatically deleted.
- Pending Deletion
- The volume is currently located within a fast ready (scratch) category and its contents are a
candidate for automatic deletion when the earliest deletion time has passed. Automatic deletion then
occurs sometime thereafter. Note: The volume can be accessed for mount or category change before the automatic deletion and therefore the deletion can be incomplete.
- Pending Deletion with Hold
- The volume is currently located within a fast ready (scratch) category configured with hold and the earliest deletion time has not yet passed. The volume is not accessible by any host operation until the volume has left the hold state. Once the earliest deletion time has passed, the volume then becomes a candidate for deletion and move to the Pending Deletion state. While in this state, the volume is accessible by all legal host operations.
- Deleted
- The volume is either currently within a fast ready category or has previously been in a fast ready category where it became a candidate for automatic deletion and was deleted. Any mount operation to this volume is treated as a fast ready (scratch) mount since no data is present.
Earliest Deletion On This value displays as "—" since it is not applicable to flash copies. Logical WORM This value displays as "—" since it is not applicable to flash copies. Compression Method The compression method applied to the volume. Volume Format ID Volume format ID that belongs to the volume. Possible values include: - -2 - Data has not been written yet
- 5 - Logical Volume old format
- 6 - Logical Volume new format
3490 Counters Handling 3490 Counters Handling value that belongs to the volume Note: A single dash (—) is used to indicate an empty value in fields where a value is not present or applicable. - Cluster-specific FlashCopy Properties
- The Cluster-specific Virtual Volume Properties table displays information about requesting virtual volumes on each cluster. These are properties that are specific to a cluster.
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Table 2. Cluster-specific virtual volume properties Property Description Cluster The cluster location of the virtual volume copy. Each cluster location occurs as a separate column header. Only clusters that are part of a disaster recovery family are shown. In Cache Whether the virtual volume is in cache for this cluster. Device Bytes Stored The number of actual bytes (MiB) used by each cluster to store the volume. This amount can vary between clusters, based on settings and configuration. Values are defined as either Device or Channel bytes. Primary Physical Volume The physical volume that contains the specified virtual volume. Click the VOLSER hyperlink to open the Physical Stacked Volume Details page for this physical volume. A value of None means that no primary physical copy is to be made. This column is only visible if a physical library is present in the grid. If there is at least one physical library in the grid, the value in this column is shown as "—" for those clusters that are not attached to a physical library. Secondary Physical Volume Secondary physical volume that contains the specified virtual volume. Click the VOLSER hyperlink to open the Physical Stacked Volume Details page for this physical volume. A value of None means that no secondary physical copy is to be made. This column is only visible if a physical library is present in the grid. If there is at least one physical library in the grid, the value in this column is shown as "—" for those clusters that are not attached to a physical library. Copy Activity Status information about the copy activity of the virtual volume copy. Possible values are: - Complete
- This cluster location completed a consistent copy of the volume.
- In Progress
- A copy is required and currently in progress.
- Required
- A copy is required at this location but has not started or completed.
- Not Required
- A copy is not required at this location.
- Reconcile
- Pending updates exist against this location's volume. The copy activity updates after the pending updates get resolved.
- Time Delayed Until [time]
- A copy is delayed as a result of Time Delayed Copy mode. The value
for
[time]
is the next earliest date and time that the volume is eligible for copies.
Queue Type The type of queue as reported by the cluster. Possible values are: - Rewind Unload (RUN)
- The copy occurs before the rewind-unload operation completes at the host.
- Deferred
- The copy occurs some time after the rewind-unload operation completes at the host.
- Sync Deferred
- The copy was set to be synchronized, according to the synchronized mode copy settings, but the synchronized cluster could not be accessed. The copy is in the deferred state. Refer to the topic Synchronous mode copy in the Related information section for additional information about synchronous mode copy settings and considerations.
- Immediate Deferred
- A RUN copy that has been moved to the deferred state due to copy timeouts or TS7700 Grid states.
- Time Delayed
- The copy occurs sometime after the delay period has been exceeded.
Copy Mode The copy behavior of the virtual volume copy. Possible values are: - Rewind Unload (RUN)
- The copy occurs before the rewind-unload operation completes at the host.
- Deferred
- The copy occurs some time after the rewind-unload operation at the host.
- No Copy
- No copy is made.
- Sync
- The copy occurs upon any synchronization operation. Refer to the topic Synchronous mode copy in the Related information section for additional information about synchronous mode copy settings and considerations.
- Time Delayed
- The copy occurs sometime after the delay period has been exceeded.
Deleted The date and time when the virtual volume on the cluster was deleted. Time recorded reflects the time zone in which the user's browser is located. If the volume has not been deleted, this value displays as "—".