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5.6 Migration / Expansion
Migration and expansion allows users to change RAID levels to improve
performance and reliablity, and to add drives to increase capaciy. For migration
and expansion, the total size of new array must be larger or equal to the original
array. To perform an expansion, migrate to the same RAID level of the original
VG with added drives.
Figure 5.6.1
1. Enter Volume config.
2. Enter Volume group.
3. Select which VG to perform migration / expansion by clicking
in the
RAID column next the RAID level.
4. Change the RAID level by selecting from the pull down menu
. A warning window will pop up if the current
available disks are not enough to support the new RAID level. Click
to increase or change hard disks to be included in the new
RAID array, then click .
5. Check the setting of RAID level and RAID PD slots and click
.
6. A confirmation page will show details of the current and new RAID
array. Start the migration process by clicking
.
7. During migration, M will be displayed in status 3 column of the VG page.
In User data volume page, the status of the migration will also be
shown in status 4 column and the percentage completion of migration
in R%.
Figure 5.6.2
(Figure 5.6.2: A 4-Way RAID 1 array migrates to RAID 3 array.)
ProSATA SS8 User Manual - 36 -