Volumes that cannot be used as migration sources – HP XP P9000 Command View Advanced Edition Software User Manual

Page 79

Advertising
background image

Target

Source

Volume Type, State

N

Y

Suspended status

Volumes that are
configured for XRC

N

N

Volumes other than the above

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: 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.
• 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.

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.
• The usage when the data is migrated does not exceed threshold 1 or threshold 2, whichever is higher.
• The maximum over-provisioning percent of the THP/Smart pool does not exceed the over-provisioning

warning threshold value.

• When selecting migration-target resources, if the option to create new THP/Smart volumes is selected,

the number of virtual volumes in the THP/Smart pool is less than the limit (P9500 Disk Array: 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.

Reasons why volumes cannot be selected as migration sources

If a volume cannot be made a migration source and the reason for it is displayed, in the Data Migration
wizard, a character string is displayed in the Migration Restriction column for Selected Column on
the Migration Source page. The following table shows the character strings and corresponding reasons
why a volume cannot be made a migration source.

Table 8 Volumes that cannot be used as migration sources

Reason preventing use as a migration source

Displayed character string

The volume is part of an unsupported storage system.

Array Type

Cache Residency or Cache Residency Manager for Mainframe is set for
the volume.

Cache LUN XP

User Guide

79

Advertising
This manual is related to the following products: