HP XP P9000 Command View Advanced Edition Software - Manual (Page 68)

low-performance volume, and then assign the now-available high-performance volume to an appropriate
host.
If the used capacity of a THP pool has reached a threshold value and volume that satisfies the capacity
requirement cannot be created or assigned because the unused capacity is insufficient, add THP pool
volumes to increase the capacity of the THP pool.
If the performance of a THP pool has decreased and data I/O is slow, add more THP pool volumes
to distribute loads within the THP pool. It is also helpful to perform volume migration to distribute I/O
loads on the THP pool.
If the load on a volume is too high when volume data is backed up to tape, create a copy pair for
the volume. Then do a tape backup by using the copied volume (as a secondary volume).
Monitoring operations in a SAN environment 68