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5.6 Assigning Hot-spare Disks
The hot-spare disks are global, which means they are not bound to any specific RAID volumes.
Whenever a RAID volume goes degraded because of a bad hard disk, a hot-spare disk will be taken
immediately to recover that RAID volume.
To assign hot-spare disks, please go to the Volume→Create page. Specify the volume type as
Hot-spare. Assign the free disks as hot-spares by using the dual window panes. Click Apply to
submit changes.
To remove disks from the hot-spare list, please go to the Volume→Delete page. Select the
hot-spares to be deleted in the Remove Hot-Spare Disks table and click Delete.
5.7 Migrating Data Volumes
Migrating a data volume is to duplicate a volume block by block. It helps administrators migrate or
duplicate data between volumes of different RAID types or capacity. During data migration, both the
source volume and the target volume will be un-mounted, not available for client access.
To migrate data, select a source volume, and the target volume to migrate to. Choose Data
migration and click Apply. The target volume will inherit all the security and quota settings of the
source volume. No differences will be observed by clients before and after the migration.
To duplicate a volume, select a source volume and the target volume. Choose Data duplication and
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