dirrtyjoe Posted July 27, 2016 Share Posted July 27, 2016 It appears my main cache drive is failing. This is a HDD where the other two are SSD so I had planned on removing it anyway. The instructions for removing a drive from a cache pool are numerous and each a bit different. But my goal was to do something like this: [*]Balance Cache [*]Backup Cache Drive [*]Stop the array using the webUI [*]Remove drive to the cache pool [*]Disconnect power/sata from removed drive [*]Start the array [*]Wait for the updated pool to rebalance which will also delete from the pool The initial balance process seems to be hung(?) at: 21 out of about 57 chunks balanced (22 considered), 63% left Any insight into how to handle this? Diagnostics attached. [edit] file too big, apparently... here is a download link: https://1drv.ms/u/s!AlrZB2zl8cavgcso3gs6TsVTgw7dvQ Quote Link to comment
dirrtyjoe Posted July 27, 2016 Author Share Posted July 27, 2016 Adding some detail - the balance seems to be never ending. I see: Jul 27 11:30:58 Juggernaut kernel: BTRFS info (device sdc1): found 1 extents Jul 27 11:30:59 Juggernaut kernel: BTRFS info (device sdc1): found 1 extents Jul 27 11:30:59 Juggernaut kernel: BTRFS info (device sdc1): found 1 extents Jul 27 11:31:00 Juggernaut kernel: BTRFS info (device sdc1): found 1 extents Jul 27 11:31:00 Juggernaut kernel: BTRFS info (device sdc1): found 1 extents Jul 27 11:31:00 Juggernaut kernel: BTRFS info (device sdc1): found 1 extents goes on and on - several times per second. Screenshot with drive labels attached. Quote Link to comment
JorgeB Posted July 27, 2016 Share Posted July 27, 2016 If one of the cache disks is failing you may not be able to complete the balance, though SMART for the wd looks OK, I can't really tell if all those BTRFS errors are from a bad disk or corrupted filesystem. Quote Link to comment
dirrtyjoe Posted July 27, 2016 Author Share Posted July 27, 2016 ... I can't really tell if all those BTRFS errors are from a bad disk or corrupted filesystem. As for how to approach correcting it, any suggestions? Wipe the cache drives, reformat, and start over? Quote Link to comment
JorgeB Posted July 27, 2016 Share Posted July 27, 2016 If it's already back up probably best to create a new pool with the SSDs only, disconnect the other disk and format the SSDs to a different fs (like reiser) before adding them to the new pool, then format to BTRFS again. Quote Link to comment
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