You can increase the maximum storage capacity of a RAID group by replacing all member disks with higher-capacity disks. This can be done online, without losing access to data or any interruption to NAS services.
Ensure that the capacity of the new disk is greater than the capacity of the disk that it is replacing.
The disk description changes to Please remove this drive.
The NAS beeps twice. Then the disk description changes to Please insert the new disk.
The NAS beeps twice. Then the status of the disk and RAID group change to Rebuilding.
Do not remove any disks while the RAID group is rebuilding.
The disks status changes back to Good.
The Expand Capacity button is enabled after all disks have been replaced and rebuilding has completed.
A confirmation message appears.
The NAS beeps and then the RAID group status changes to Synchronizing.
Do not power off the NAS or remove any disks while hard drive synchronization is in progress.
The RAID group status changes to Ready.