Figure 30 Raid Migration - Fujitsu ETERNUS DX100 S4 Design Manual

2. Basic Functions
Optimization of Volume Configurations
Changing the encryption attributes
•
The encryption attribute of the volume is changed according to the encryption setting of the vol-
ume 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
zation" (page

Figure 30 RAID Migration

TPP (Unencrypted)
TPV (Deduplication/
Compression is enabled)
TPV (Deduplication/
Compression is disabled)
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 DX or
the target volume.
Refer to "Combinations of Functions That Are Available for Simultaneous Executions" (page 203)
for details on the functions that can be executed simultaneously, the number of the process that
can be processed simultaneously, 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.
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
47).
Standard
Standard
TPP (Encrypted)
TPV (Deduplication/
Compression is enabled)
TPV (Deduplication/
Compression is disabled)
Copyright 2023 Fujitsu Limited
RAID group
WSV
WSV
FTRP (Unencrypted)
FTV
58
"TPV/FTV Capacity Optimi-
The volume type depends on
the migration destination.
A volume becomes encrypted
when moved to an encrypted
pool.
FTRP (Encrypted)
FTV
P3AM-7642-32ENZ0