HP XP Array Manager Software User Manual

Page 210

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Target

Source

Volume Type, State

N

N

V-VOL
POOL

N

N

P-VOL

Fast Snap

N

N

V-VOL

N

N

POOL

Y

Y

Read/Write

Data Retention Util-
ity

5

N

Y

Volumes other than the above

N

Y

Suspended status

Volumes that are
configured for XRC

N

N

Volumes other than the above

N

N

Volumes for which virtual IDs are specified

Legend:

Y: Can be selected

N: Cannot be selected

[ ]: Names indicated are those for mainframe-based programs

Notes:

1.

When the migration source volume is a LUSE, a migration target must be selected for each volume that
constitutes the LUSE. Migration target volumes must also satisfy the following conditions:
• All of the migration target volumes are internal volumes, or all are external volumes.
• The I/O suppression mode, cache mode, and CLPR of all migration target volumes are the same.
• Migration target volumes are not THP/Smart volumes.
Also, for Tiered Storage Manager to automatically create pairs for migration sources and migration targets,
we recommend that the following conditions also be met:
• If the migration target volumes are external volumes, all of the volumes are in the same external storage

system.

• The RAID level, drive type, and SLPR (storage management logical partition) of all migration target

volumes are the same.

Note that if you are migrating a LUSE volume of an XP24000/XP20000 storage system for which the
micro version is earlier than 60-05-12-00/00, you must not perform I/O operations on the volumes while
migration is being executed.

2.

The migration source volumes and migration target volumes or pools are in different THP/Smart pools.

3.

The following conditions must be satisfied:
• The status is not blocked.
• The THP/Smart pool has more unused capacity than the migration source volumes.
• Used THP/Smart pool capacity does not exceed both used thresholds 1 and 2 (even after a migration

is performed).

• THP/Smart pool subscription does not exceed the subscription warning and subscription limit (even

after a migration is performed).

• The number of virtual volumes in the THP/Smart pool is less than the limit (HP P9500: 63,232;

XP24000/XP20000: 8,192).

4.

The CLPRs for the migration target and migration source are the same.

5.

If an external storage system is locked (not Read/Write), it cannot be a migration source or migration
target.

Operations in Legacy mode

210

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