HP StorageWorks P9000 Tiered Storage Manager Software 7.1 CLI Reference Guide (TB585-96011, May 2011)

• 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.
Conditions for migrating data from LUSE volumes
Tiered Storage Manager software allows LUSE volumes to be specified as migration sources. If LUSE
volumes are specified as migration sources, the following conditions must be met:
• The migration target volumes must be either all internal volumes or all external volumes.
• All the migration target volumes must have the same emulation type, drive type, I/O suppression
mode, cache mode, and CLPR.
• The migration target volumes must not be THP volumes.
In addition, to automatically determine the migration target volumes in Tiered Storage Manager
software, the following conditions must also be met:
• If the migration target volumes are external volumes, all the volumes must be in the same external
storage system.
• All the migration target volumes must have the same RAID level and SLPR.
Reference information during operations234