Thecus Technology i Series - Manual (Page 61)

Figure 4.2.3
(Figure 4.2.3: A RAID 0 migrates to RAID 5, complete percentage is 2%.)
To do migration/expansion, 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 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.
4.3 UDV Extension
To extend UDV size, please follow the procedures.
1. Select “/ Volume config / User data volume”.
2. Decide which UDV to be extended, click the button “
” in the Size
column next the number.
3. Change the size. The size must be larger than the original, and then
click “ “ to start extension.
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