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Figure 4.2.3
(Figure 4.2.3: A RAID 0 migrates to RAID 5, the complete percentage is 12%.)
To do migration, the total size of VG must be larger or equal to the original VG.
It does not allow expanding the same RAID level with the same hard disks of
original VG.
During the setting migration, if user doesn’t setup correctly, controller will pop
up warning messages. Below is the detail of messages.
1.
Invalid VG ID:
Source VG is invalid.
2.
Degrade VG not allowed:
Source VG is degraded.
3.
Initializing/rebuilding operation's going:
Source VG is initializing
or rebuilding.
4.
Migration operation's going:
Source VG is already in migration.
5.
Invalid VG raidcell parameter:
Invalid configuration. E.g., New
VG's capacity < Old VG's capacity, New VG's stripe size < Old VG's
stripe size. Or New VG's configuration == Old VG's configuration.
6.
Invalid PD capacity:
New VG's minimum PD capacity < Old VG's
minimum PD capacity.
Caution
VG Migration cannot be executed during rebuild or UDV
extension.
