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Forum Discussion
Volume Degraded after disk replacement
Hi I hope somebody can help me! I got a message one day saying one of my two disks have failed (both 4xTB WD reds). So I replaced the bad one with a 4TB Seagate Ironwolf as the newer WD...
Hey, Thanks for taking the time to reply!
It turns out that my essentials files were only around 300GB which I could offload and then perform a factory reset.
After the fresh install and resync. It runs perfectly now!
So can we safely rule out hardware at this point ?
There only thing I had noticed prior to all this is my Videos share was showing that I was using 100,000's of GBs. Much more than I have on the NAS. I didn't pay it any attention as it didn't affect anything.
I would love to find out what happened here for others or future me. Luckily I downloaded the logs prior to the reset.
Below is the bottom of my volume.log
=== maintenance history === device operation start_time end_time result details ---------- --------- ------------------- ------------------- --------- ---------------------------------------------------------------- data resilver 2018-03-22 19:29:43 2018-03-23 05:38:19 completed data resilver 2020-10-19 19:23:52 2020-10-19 19:24:03 degraded data resilver 2020-10-25 00:00:51 data resilver 2020-10-25 11:19:14 2020-10-26 06:28:40 degraded data disk test 2020-10-26 09:41:47 data resilver 2020-10-26 10:42:41 2020-10-26 20:48:23 degraded
I suggest running the disk test from the volume settings wheel (after the volume is fully synced). There might still be an issue with one of the two disks.
The incorrect size of the video share suggests that there was some btrfs file system corruption on the first disk.
As far as the logs go, I suggest examining system.log and kernel.log for btrfs or disk error messages. Look in the time window when the last resilvering was being done - 10:42:41 to 20:48:23 on 26 Oct.
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