HP StorageWorks P9000 Command View Advanced Edition Suite Software 7.1.1 Administrator Guide (web) (TB581-96065, September 2011)

Default: 4
CAUTION:
• If you specify a volume with a larger capacity than the migration source volume for the migration
target volume, the migration target volume is deleted prior to migration, and then created again
with the same capacity as the migration source volume. Therefore, the migration task will require
more time than when migrating to a volume of the same capacity.
• If the migration target volume is re-created, the free capacity of the parity group increases by the
difference in capacity with the migration source volume. For example, if a volume that has 30 GB
is specified as a migration target for a migration source volume that has 10 GB, the free capacity
of the parity group increases by 20 GB. Therefore, we recommend that you specify, as a migration
target, a volume that is as close in capacity to the migration source volume as possible.
server.migration.maxRetryCount
This setting specifies the maximum number of retries to be sent by the Tiered Storage Manager server
when requesting that the storage system retry task execution. If the storage system is temporarily
unable to receive such requests because the user has modified the configuration of the storage system
or the storage system is operating in Modify mode, requests to the storage system can be retried every
five minutes.
You can specify a value from 0 to 2,147,483,647. If 0 is specified, no retries are attempted.
Default: 5
server.migration.waitForPairDeleteInMinute
This setting specifies the number of minutes to wait after a migration finishes until a storage system
will split a migration pair. Storage systems refresh themselves after a migration on them finishes.
Specify this value to make sure that a migration pair is not split on a storage system while that storage
system is refreshing.
You can specify a value from 0 to 1,440.
Default: 3
server.migration.remainTimeForDeletePairInMinute
This property allows you to specify, during a migration of multiple volumes, the number of minutes to
wait after an individual migration finishes until the storage system splits that migration pair. When
migration finishes, Tiered Storage Manager requests that the storage system splits the source volume
and migration target volume pair. While the storage system is splitting the pair, if another migration
in the same task finishes and the storage system begins an internal refresh, the pair will not split
properly. Therefore, there must be enough time from when the pair split is requested until the pair
split can finish. If another migration is about to complete, the splitting of the pair and internal refresh
will overlap and there is a high possibility that the pairs will fail to split.
You can specify a value from 0 to 1,440.
Default: 15
Tiered Storage Manager server properties340