DZMM Posted March 7, 2017 Share Posted March 7, 2017 (edited) I'm trying to remove 1 of 2 cache pool drives, but I'm now stuck with an unmountable cache. What I did: rebalanced stopped array unallocated 2nd drive started - server froze and then read on forums need to remove drive to start removed unwanted drive and then started array starts but cache unmountable Fix common problems says Quote cache (HFS250G32TND-N1A2A_FJ69N40661080954I) has file system errors (Bound to btrfs pool) and suggests Quote if the disk if XFS / REISERFS, stop the array, restart the Array in Maintenance mode, and run the file system checks. If the disk is BTRFS, then just run the file system check" as the fix but I can't find the option. What am I doing wrong? Thanks PS I'm praying I can fix as I was so confident I was doing the right thing I formatted rather than removed the surplus drive as this was stated as a way to restart the array, so if I can't recover the remaining drive I might have lost some files..... highlander-diagnostics-20170307-1702.zip Edited November 28, 2017 by DZMM Quote Link to comment
JorgeB Posted March 7, 2017 Share Posted March 7, 2017 For the future follow the FAQ instructions to remove a cache device, much safer. For now your best bet is probably to try an mount it read only, copy all data and format: mkdir /x mount -o recovery,ro /dev/sdX1 /x Replace X with actual device 1 Quote Link to comment
DZMM Posted March 7, 2017 Author Share Posted March 7, 2017 Thanks. I didn't check the FAQ but I did do a few searches first and this is the one that gave me the confidence to go ahead: Admittedly your next post did say read the FAQ, but I didn't get that far. I tried the command but got the following error: Quote mount: wrong fs type, bad option, bad superblock on /dev/sdf, missing codepage, or helper program, or other error. Should I try this? Asking first this time btrfs restore -v /dev/sdf1 /mnt/disk2/restore Quote Link to comment
JorgeB Posted March 7, 2017 Share Posted March 7, 2017 You can, don't forget you need to create the destination folder before doing the restore. 1 Quote Link to comment
DZMM Posted March 7, 2017 Author Share Posted March 7, 2017 OK it seems to be qorking - lots of 'trying another mirror' entries but it seems to be working, although I got a 'we seem to be looping a lot' message on one of my PST files. I'm assuming this is because they are large? Quote Link to comment
DZMM Posted March 8, 2017 Author Share Posted March 8, 2017 Update: all files seem to be recovered. I've put my backups in a safe place just in case. Thanks for the help Quote Link to comment
DZMM Posted March 11, 2017 Author Share Posted March 11, 2017 ok, I'm not quite there. My new cache pool isn't assigned when the server boots. I've tried running 'new config' but it doesn't work - I have to assign the drives on each boot. Basically I went from 2x250GB cache pool & 1x500GB unassigned to all 3 SSDs now in the cache pool. When I assign and then start array all is fine. how do I fix please? i've tried moving all files to the array and creating the pool from fresh. highlander-diagnostics-20170311-0032.zip Quote Link to comment
JonathanM Posted March 11, 2017 Share Posted March 11, 2017 1 hour ago, DZMM said: ok, I'm not quite there. My new cache pool isn't assigned when the server boots. I've tried running 'new config' but it doesn't work - I have to assign the drives on each boot. Boot in safe mode, assign the disks, start the array, stop the array, reboot, see what happens. Quote Link to comment
DZMM Posted March 11, 2017 Author Share Posted March 11, 2017 6 hours ago, jonathanm said: Boot in safe mode, assign the disks, start the array, stop the array, reboot, see what happens. Thanks that worked. I'd been booting and setting the array to not start to do the same, but i guess doing in safe mode was needed Quote Link to comment
tonsofguns Posted January 8, 2020 Share Posted January 8, 2020 (edited) I'm having the same issue here. I've started the restore on the first disk out of two. My question is: Do I restore the second disk to the same directory i created for the first ? Or do I need to create a second directory for that ? Edited January 8, 2020 by tonsofguns Quote Link to comment
trurl Posted January 8, 2020 Share Posted January 8, 2020 21 minutes ago, tonsofguns said: I'm having the same issue here. I've started the restore on the first disk out of two. My question is: Do I restore the second disk to the same directory i created for the first ? Or do I need to create a second directory for that ? This thread you have posted in is nearly 3 years old, and marked solved. And you haven't given enough information for us to judge exactly what your problem is or what you may have done. The person who started the thread apparently didn't follow the correct procedure and so wound up with a problem. Is that what you did also? I think there must be something about your situation that is very different than this thread. Why do you think there are 2 separate disks to be restored? Quote Link to comment
trurl Posted January 8, 2020 Share Posted January 8, 2020 Go to Tools - Diagnostics and attach the complete diagnostics zip file to your NEXT post. Quote Link to comment
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