HP StorageWorks P9000 Tiered Storage Manager Software 7.1.1 CLI Reference Guide (TB585-96014, September 2011)

Status of the specified volumeDisplayed character string
The volume is included in another migration group.
Migration Group (target)
The volume is a NAS system volume.
NAS (target)
A path is set for the volume.
Path (target)
VOLSER is set for the volume.
VOLSER (target)
The volume satisfies all of the following conditions:
• The volume is the P-VOL of a Snapshot pair.
• The status is PAIR.
• The number of generations is 63 or less.
XP Snapshot (target)
< Snapshot XP (target) >
Legend:
< >: The character string enclosed in parentheses is displayed when an
XP12000/XP10000/SVS200 is used.
Conditions for migrating data to THP pools
Tiered Storage Manager software allows THP pools to be specified as migration targets. You must
create a storage tier by specifying a THP pool in advance. If a THP pool is specified as the migration
target, Tiered Storage Manager software automatically creates THP volumes in the THP pool, and
then migrates data to the volumes. At this time, a pool number is automatically assigned to each
migration target volume.
You can specify a THP pool as the migration target if the following conditions are satisfied:
• The status of the migration target pool is a status other than blocked.
• The amount of free space in the migration target pool must be equal to or larger than the total
size of the migration source volumes.
• The usage rate of each THP pool after the migration must not exceed either threshold 1 or threshold
2, whichever is the higher value.
• The number of virtual volumes in the migration target pool is less than 8,192.
• The maximum over-provisioning percent in the migration target pool does not exceed the warning
threshold for the over-provisioning percent.
• The maximum over-provisioning percent in the migration target pool does not exceed the upper
limit for the over-provisioning percent.
If the migration source includes THP pool volumes, the following condition must also be satisfied:
• The same THP pool cannot contain both migration source and target volumes.
When the migration source is a THP volume, the migration target is a THP pool and the setting is
specified to automatically erase the data after a migration, all the data will be deleted from the
migration source volume. After that, both the THP volume and the THP volume group will be deleted.
However, if multiple volumes exist in the virtual volume group, whether the volumes and the volume
group are deleted differs, depending on whether Open Volume Management have been installed.
• If Open Volume Management have been installed: The THP volume group will be deleted after
the last THP volume is deleted.
• If Open Volume Management have not been installed: A message indicating that the volumes
cannot be deleted (KATS50388-E) will be output.
CLI Reference Guide 203