NAS recovery is the process of recovering data from complex NAS devices like NETGEAR ReadyNAS, Buffalo, QNAP,
and others. Typically, NASes use Linux operating system which determines the choice of software RAID drivers – md and LVM - , and the choice of filesystems - EXT2/3/4, XFS, and BTRFS.
NAS recovery tools have to be able to recover NAS RAID configuration either by reading metadat from a NAS, or by analysing data on disks,
and then recover a filesystem used
in a particular NAS device.
Testbed
I used disk image files from real NAS devices – NETGEAR (one disk set with EXT and the other with BTRFS) and Buffalo
(with XFS filesystem).
NAS metadata on one of the sets was intentionally damaged so that I can understand which tools can recover
NAS configuration in those cases where it is impossible to just read NAS metadata.
| Parameter |
Home NAS RecoveryA |
ReclaiMeB |
RuntimeC |
UFS ExplorerD |
ZARE |
| User experience and price |
| Price |
Free1 or per-disk |
199.95 USD |
99 USD |
199.95 EUR |
69.95 USD |
| Ease of use |
Easy |
Easy |
Average |
Complex |
Average |
| Compatible NAS types |
| Classic NAS2 |
Yes |
Yes |
Yes |
Yes |
Yes |
| XFS-based3 |
Yes |
Yes |
Yes |
Yes |
Yes |
| Advanced RAID4 |
No |
Yes |
Yes |
Yes |
No |
| BTRFS-based5 |
Yes |
Yes |
No |
No |
No |
| Features |
| Automatic missing disk detection |
Yes |
Yes |
No |
Yes |
Yes |
| Automatic hot spare detection |
Yes |
Yes |
No |
Yes |
No |
| Recover NAS with damaged metadata |
Yes |
No |
Yes |
No |
Yes6 |
,
www.nas-recovery.software
,
www.reclaime.com
,
www.runtime.org
,
www.ufsexplorer.com
,
www.z-a-recovery.com
Copyright © 2015-2024 Alexey V. Gubin