ZFS Pool Data Recovery
We specialise in professional data recovery for failed or degraded ZFS Pool systems, including RAID-Z, RAID-Z2, striped mirrors, and hybrid vdev setups. Whether your pool is faulted, unmountable, or suffering from multiple disk failures, our team can help recover your valuable data. We accept mail-in jobs Australia-wide.
ZFS Pool Common Problems
- Pool won't import due to missing or failed drives
- ZFS pool marked as FAULTED or DEGRADED
- Corrupted ZFS metadata or label headers
- Accidental zpool destroy or zfs destroy command
- Multiple disk failure in RAID-Z configurations
- ZIL/SLOG or L2ARC device failure
- Read/write errors causing system crashes
- Incompatibility after FreeNAS/TrueNAS update
ZFS Pool RAIDZ1 Data Recovery Caselog
02SEP25: RAIDZ1 pool with three ST4000VN008-2DR166 drives. Two (ZM401ZXR, ZDH5N8SG) had dead heads and showed “0003” terminal error. One drive (ZDH5F828) was healthy and used as a reference. ROMs read via terminal, preamp versions confirmed, and tech mode patching applied. ZDH5F828 was cloned to an 8TB donor; head swap planned into ZDH5N8SG for pool reconstruction.
RAIDZ2 TrueNas Data Recovery Caselog
27Feb26: This truenas raid pool came in for data recovery at our sydney data recovery service. The customer tried a lot of different experiments to get it working again. Unfortunately this has made the problem way worse then it needed to be for data recovery. Its got 6 hard drives with some in bad condition. We can see the zfs file system but it has been damaged from these experiments. The customer was originally quoted over $4000 dollars from a different company so they brought it to Zero Alpha for a 60% discount. The customer was in the middle of a resilver before another hard drive failed.