Brad Posted February 5, 2018 Share Posted February 5, 2018 Having an issue with a 4TB drive (part of the array) which is now showing as disabled in Unraid. Apparently the contents of this drive are being emulated but the only other disk in the array (besides the parity) is 500GB and my used data is roughly 1TB. I'm confused, is it emulating it using only the parity? I've attached my diagnostics file if anyone would be kind enough to advise what I should do. Has the drive failed? I'm worried removing the disk and installing it on the array again will delete my data. Thanks! tower-smart-20180205-1021.zip Link to comment
JorgeB Posted February 5, 2018 Share Posted February 5, 2018 15 minutes ago, Brad said: Apparently the contents of this drive are being emulated but the only other disk in the array (besides the parity) is 500GB and my used data is roughly 1TB. I'm confused, is it emulating it using only the parity? A disabled disk is emulated by parity together with all the remaining data disks. SMART looks fine but you should post the complete diagnostics. Link to comment
Brad Posted February 5, 2018 Author Share Posted February 5, 2018 My bad, thought that was what I'd attached. Have attached it now. tower-diagnostics-20180205-1309.zip Link to comment
JorgeB Posted February 5, 2018 Share Posted February 5, 2018 You need to rebuild disk1, either using the old disk or a new spare if you want to pay it safer in case there are errors on another disk, though since it's a small array not much risk in rebuild using the old disk, so if you to re-enable the drive follow these instructions: http://lime-technology.com/wiki/Troubleshooting#Re-enable_the_drive Unrelated there are corruption warnings on the unassigned NVMe device, a scrub will show you what files are affected, it can also be corrupt metadata: Feb 5 10:12:11 Tower kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 11957268480 csum 0xaced39e9 expected csum 0x8cb0d444 mirror 1 Feb 5 10:12:13 Tower kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 18315821056 csum 0xe50b4047 expected csum 0x4475fc19 mirror 1 Feb 5 10:12:13 Tower kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 23684071424 csum 0x42186b7f expected csum 0xe50b4047 mirror 1 Feb 5 10:12:14 Tower kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 18315821056 csum 0xe50b4047 expected csum 0x4475fc19 mirror 1 Link to comment
Brad Posted February 6, 2018 Author Share Posted February 6, 2018 Many thanks @johnnie.black , that has resolved the disabled disk issue. Regarding the corruption warnings, I've tried scrubbing and it results in the following: Quote scrub status for 4f77f8cb-9763-4be1-ab95-91b29c1b5835 scrub started at Tue Feb 6 23:11:04 2018 and finished after 00:00:51 total bytes scrubbed: 71.53GiB with 1 errors error details: csum=1 corrected errors: 0, uncorrectable errors: 1, unverified errors: 0 dmesg shows the following: Quote [111295.313858] btrfs_print_data_csum_error: 25 callbacks suppressed [111295.313862] BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 25219874816 csum 0x8480748e expected csum 0xc8169467 mirror 1 [111295.313871] BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 7843131392 csum 0x42186b7f expected csum 0x8480748e mirror 1 [129053.614699] BTRFS warning (device nvme0n1p1): csum failed root 5 ino 261 off 16616595456 csum 0x93d5139c expected csum 0xbd421af7 mirror 1 [133285.617368] BTRFS error (device nvme0n1p1): bdev /dev/nvme0n1p1 errs: wr 0, rd 0, flush 0, corrupt 1, gen 0 [133285.617371] BTRFS error (device nvme0n1p1): unable to fixup (regular) error at logical 151660081152 on dev /dev/nvme0n1p1 There is only 1 file on this NVMe drive and that is my Windows VM img. Does this mean it is corrupted, and if so is there a way I can repair it? Note that I'm currently using this Windows VM with no issues. Link to comment
JorgeB Posted February 6, 2018 Share Posted February 6, 2018 If you haven't rebooted post the diagnostics. Link to comment
Brad Posted February 6, 2018 Author Share Posted February 6, 2018 I haven't rebooted yet, the diagnostics zip is attached. tower-diagnostics-20180206-2335.zip Link to comment
JorgeB Posted February 7, 2018 Share Posted February 7, 2018 I don't see the scrub in the diags, can you run a new one from the GUI and post new diagnostics when done. Link to comment
Brad Posted February 7, 2018 Author Share Posted February 7, 2018 How do I run a scrub from the GUI? The NVMe drive is unassigned and not in the cache array. I can see how to scrub cache drives but not unassigned ones. Thanks! Link to comment
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