Recover NAS devices

A NAS device is actually a special-purpose computer in its own right, usually running the Linux operating system. The hard drives are usually partitioned into a few small volumes for the NAS operating system and a large data volume. Thus the data volume is a software RAID. Therefore, the recovery procedure for NAS is similar, with the following likely settings:

• Backward, symmetric parity rotation for RAID 5.
• 64 KB block size.
• The RAID partition being the largest partition.

If a NAS device contains virtual file systems such as VHDs, VMDKs, etc. recovery is complex and is best left to an expert.