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Forum Discussion
ReadyNAS Data loss
Greetings: I have two ReadyNAS 2120 1u devices running 4TB drives. One at my shop one at my home and I backup between them. I had a drive fail on one of the systems and fortunately I had a fresh spa...
Just to be clear, I only removed one drive. I didn't power down the system and the other drives were "healthy"
Update,
I reviewed the logs. Disk 3 was showing problems and that is the one I replaced. Disk 3 was noted to be in RESYNC mode then ONLINE. Then It went back to RESYNC. Then I see increasing ATA error count on disk 1. Disk 3 went back and forth from ONLINE to RESYNC 5 or 6 times. Disk 1 then showed change from ONLINE to FAILED. followed by a Volume data is resynced then Volume data is dead. Then it shows where I performed a reboot.
It looks like I had a drive failure and when That was rebuilding a second drive failed. I'm wondering if I replaced drive 1 with a new drive (on order) drive 3 may have resynced enough to recover data when I replace drive 1???
Docwagner wrote:
Update,
I reviewed the logs. Disk 3 was showing problems and that is the one I replaced. Disk 3 was noted to be in RESYNC mode then ONLINE. Then It went back to RESYNC. Then I see increasing ATA error count on disk 1. Disk 3 went back and forth from ONLINE to RESYNC 5 or 6 times. Disk 1 then showed change from ONLINE to FAILED. followed by a Volume data is resynced then Volume data is dead. Then it shows where I performed a reboot.
It looks like I had a drive failure and when That was rebuilding a second drive failed. I'm wondering if I replaced drive 1 with a new drive (on order) drive 3 may have resynced enough to recover data when I replace drive 1???
You could try powering down, putting back the original Disk 3, and removing the failed Disk 1. Then try booting read-only, and see if the volume mounts.
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