What RAID modes are recoverable on the WD ShareSpace drive?
All WD ShareSpace drives support Spanning, RAID-0 (Striping), RAID-1 (Mirroring), and RAID-5 (Redundancy with parity). Each RAID mode may or may not be available for usage based upon how many internal hard drives are installed in the enclosure.
Please Note: Depending on how the WD ShareSpace RAID is setup, that RAID array may not be recoverable from a drive failure.
Qty of 2 – 1TB internal hard drives:
- RAID-0 – 2TB – (Not recoverable)
- RAID-1 – 1TB – (Recoverable)
- RAID-5 – (Not Supported)
Qty of 3 – 1TB internal hard drives:
- Spanning – 3TB – (Non recoverable)
- RAID-0 – 3TB – (Non recoverable)
- RAID-1 – (Not Supported)
- RAID-5 – 2TB – (Recoverable)
Qty of 4 – 1TB internal hard drives:
- Spanning – 4TB – (Non recoverable)
- RAID-0 – 4TB – (Non recoverable)
- RAID-1 (Double Mirror) – (Recoverable)
- RAID-5 – 3TB – (Recoverable)
For a recoverable RAID mode:
To recover the ShareSpace from Drive failure, or from a degraded RAID array, you must replace the failed drive with a Western Digital unformatted drive of the same model and size. Once the drive is replaced, the ShareSpace will re-sync the drive back into the RAID array and automatically start the RAID re-build. No further user intervention is needed, other than replacing the failed drive in the unit.
It’s worth noting that if your drive status is good – i.e. the RAID is degraded but all the drives are ok you can clean the drive that’s causing the problem and reboot the ShareSpace.
Sharespace will then automatically start the RAID re-build as if it was a new drive.
I’ve just done this successfully on my Sharespace with no problems.