dsmith44 Posted September 30, 2019 Share Posted September 30, 2019 (edited) Hello, I had an issue with an SSD that is part of my three drive cache, I think due to cabling, lots of CRC errors Reseating all the cables and booting back into rescue mode I ran Btrfs scrub on the device and it corrected some 1,000,000 errors correctly, no failed repairs. Rebooted into unraid full and it for some reason then ran a resize for two hours then settled down again. Finally I have a situation where the actual Btrfs seems fine although in need of a balance, but unraid thinks only two of the three disks are actually in the cache. Smarctl -t on affected SSD is showing nothing. Not quite sure how to progress, any ideas? Thanks root@unraid:~# btrfs fi show /mnt/cache Label: none uuid: 80776be4-065e-404e-a103-acb4b5026956 Total devices 3 FS bytes used 322.01GiB devid 1 size 256.17GiB used 256.17GiB path /dev/sdi1 devid 2 size 447.14GiB used 70.00GiB path /dev/sdg1 devid 3 size 447.14GiB used 322.17GiB path /dev/sdh1 root@unraid:~# btrfs fi usage /mnt/cache Overall: Device size: 1.12TiB Device allocated: 648.34GiB Device unallocated: 502.11GiB Device missing: 0.00B Used: 644.03GiB Free (estimated): 251.72GiB (min: 251.72GiB) Data ratio: 2.00 Metadata ratio: 2.00 Global reserve: 240.80MiB (used: 0.00B) Data,RAID1: Size:322.14GiB, Used:321.47GiB /dev/sdg1 69.00GiB /dev/sdh1 320.14GiB /dev/sdi1 255.14GiB Metadata,RAID1: Size:2.00GiB, Used:553.47MiB /dev/sdg1 1.00GiB /dev/sdh1 2.00GiB /dev/sdi1 1.00GiB System,RAID1: Size:32.00MiB, Used:96.00KiB /dev/sdh1 32.00MiB /dev/sdi1 32.00MiB Unallocated: /dev/sdg1 377.14GiB /dev/sdh1 124.97GiB /dev/sdi1 1.01MiB root@unraid:~# unraid-diagnostics-20190930-2242.zip Edited October 1, 2019 by dsmith44 Quote Link to comment
JorgeB Posted October 5, 2019 Share Posted October 5, 2019 Stop the array, if Docker/VM services are using the cache pool disable them, unassign all cache devices, start array to make Unraid "forget" current cache config, stop array, reassign the 3 cache devices, re-enable Docker/VMs if needed, start array. Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.