QNAP VS-2004L en - Manual (Page 174)

174
6.4.2 RAID Management Tool
*This function is not supported by the VS-1004L.
The RAID management tool supports capacity expansion, RAID migration, or spare drive
configuration with the original drive data reserved.
Expand capacity
This function enables capacity expansion of a RAID configuration by replacing the member
drives one by one. This option is supported by RAID 1, RAID 5, or RAID 6 configurations.
Add hard drive
This function enables adding new drive member to a RAID configuration. It is supported
by RAID 5 configuration.
Migrate
This function enables a drive configuration to be migrated to a different RAID configuration.
Use this feature to:
- Migrate a single drive to RAID 1, 5, or 6
- Migrate a RAID 1 configuration to RAID 5 or 6
- Migrate a RAID 5 configuration to RAID 6