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ReadyNAS OS 6.0
Vertically Expand a Volume
Both X-RAID2 and Flex-RAID volumes support vertical expansion.
When you vertically expand a Flex-RAID volume, you must replace all disks in the volume
with larger-capacity disks.
Note: Vertical expansion is not available for RAID 0 volumes.
When you vertically expand an X-RAID2 volume, you must replace disks in the volume
according to the following table.
Table 2.
RAID Level Disk Replacements Required for Vertical Expansion
RAID 1 Replace 2 or more disks with larger-capacity disks.
RAID 5 Replace 2 or more disks with larger-capacity disks.
RAID 6 Replace 4 or more disks with larger-capacity disks.
X-RAID2 vertical expansion requirements
If you replace fewer disks than required for vertical expansion, the disks are reserved for data
protection. Your available storage capacity does not increase to accommodate the reserved
disks until you replace the required number of disks.
IMPORTANT:
To reduce the risk of data loss, NETGEAR recommends that you
back up your data before vertically expanding a volume.
To vertically expand an X-RAID2 volume:
1. Replace one disk in the volume with a larger-capacity disk.
For more information about how to add a disk to your system, see the hardware manual
for your system, which is available at
http://support.netgear.com/product/ReadyNAS-OS6.
Note: You must use supported disks in your ReadyNAS system. For a list
of supported disks, visit http://www.netgear.com/readynas-hcl.
2. Wait for the volume to resync your data.