•
Changing the encryption attributes
The encryption attribute of the volume is changed according to the encryption setting of the volume or the
encryption attribute of the migration destination pool (TPP and FTRP).
•
Changing the number of concatenations and the Wide Stripe Size (for WSV)
•
Enabling the Deduplication/Compression function for existing volumes
The following processes can also be specified.
•
Capacity expansion
When migration between RAID groups is performed, capacity expansion can also be performed at the same
time. However, the capacity cannot be expanded for TPVs or FTVs.
•
TPV/FTV Capacity Optimization
When the migration destination is a pool (TPP or FTRP), TPV/FTV capacity optimization after the migration can
be set.
For details on the features of TPV/FTV capacity optimization, refer to "
TPV/FTV Capacity Optimization" (page
51).
Figure 31 RAID Migration
TPV (Deduplication/
Com
pression is enabled)
TPV (Deduplication/
Com
pression is disabled)
TPV (Deduplication/
Com
pression is enabled)
TPV (Deduplication/
Com
pression is disabled)
WSV
FTV FTV
WSV
Standard
Standard
The volume type depends on the
migration destination.
A volume becomes encrypted
when moved to an encrypted pool.
RAID group
TPP (Encrypted)TPP (Unencrypted) FTRP (Encrypted)FTRP (Unencrypted)
:
Unencrypted volumes
:
Encrypted volumes
Specify unused areas in the migration destination (RAID group or pool) with a capacity larger than the migration
source volume. Note that RAID groups that are registered as REC Disk Buffers cannot be specified as a migration
destination.
RAID migration may not be available when other functions are being used in the
ETERNUS AF or the target vol-
ume.
Refer to "Combinations of Functions That Are Available for Simultaneous Executions" (page 167) for details on
the functions that can be executed simultaneously, the number of the process that can be processed simultane-
ously, and the capacity that can be processed concurrently.
During RAID Migration, the access performance for the RAID groups that are specified as the RAID Migration
source and RAID Migration destination may be reduced.
1. Function
Optimization of Volume Configurations
60
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays
Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
P3AG-1822-09ENZ0
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