dotn Posted May 31, 2020 Posted May 31, 2020 (edited) I've reused two 500GB old 2.5" drives from taken out from laptops in my unRAID server until I will get second WD RED 4TB (currently using only one as a parity drive). Â Today, older one of the 500GB was marked with red dot. I've disabled it, checked SMART. Because I did not see any errors, based on recommendations in other topics in the forum, I double check the HDD power supply and replaced SATA cable for a new one. Â Then I followed the disk replacement procedure (stop array, remove disk, start, stop, add disk and start again) with the same disk, because I believed it was a cabling problem. The drive had started to rebuilt, when I got the write error again. Â Also I need to mention that I experienced one unclean shutdown today - it can be possible related to HDD fail later. Â Relevant part from syslog: May 31 19:58:11 unRAID kernel: ata5.00: qc timeout (cmd 0x47) May 31 19:58:11 unRAID kernel: ata5.00: READ LOG DMA EXT failed, trying PIO May 31 19:58:11 unRAID kernel: ata5: failed to read log page 10h (errno=-5) May 31 19:58:11 unRAID kernel: ata5.00: exception Emask 0x1 SAct 0x400001f8 SErr 0x400001 action 0x6 frozen May 31 19:58:11 unRAID kernel: ata5.00: irq_stat 0x40000008 May 31 19:58:11 unRAID kernel: ata5: SError: { RecovData Handshk } May 31 19:58:11 unRAID kernel: ata5.00: failed command: WRITE FPDMA QUEUED May 31 19:58:11 unRAID kernel: ata5.00: cmd 61/40:18:d0:77:38/05:00:3a:00:00/40 tag 3 ncq dma 688128 out May 31 19:58:11 unRAID kernel: res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) May 31 19:58:11 unRAID kernel: ata5.00: status: { DRDY } May 31 19:58:11 unRAID kernel: ata5.00: failed command: WRITE FPDMA QUEUED May 31 19:58:11 unRAID kernel: ata5.00: cmd 61/40:20:10:7d:38/05:00:3a:00:00/40 tag 4 ncq dma 688128 out May 31 19:58:11 unRAID kernel: res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) ... May 31 19:58:29 unRAID kernel: print_req_error: I/O error, dev sdc, sector 976775080 May 31 19:58:29 unRAID kernel: md: disk1 write error, sector=976775016 May 31 19:58:29 unRAID kernel: md: disk1 write error, sector=976775024 May 31 19:58:29 unRAID kernel: md: disk1 write error, sector=976775032 May 31 19:58:29 unRAID kernel: md: disk1 write error, sector=976775040 May 31 19:58:29 unRAID kernel: md: disk1 write error, sector=976775048 May 31 19:58:29 unRAID kernel: md: disk1 write error, sector=976775056 ... Â I'm also attaching my diagnostic files. (1743 - HDD fail, 2055 - rebuild attempt). Â Should I replace this drive or is the problem elsewhere? Â As I currently only experimenting with unRAID setup, I don't have any important data stored on those drives. However, I am curious what to do in such case once I will have my media library and personal data stored there. Â Â unraid-diagnostics-20200531-2055.zip unraid-diagnostics-20200531-1743.zip Edited June 1, 2020 by dotn solved Quote
JorgeB Posted June 1, 2020 Posted June 1, 2020 Disk looks healthy but if you already replaced cables there could still be a problem there, make sure you also replaced/swapped the power cable, I would also swap to a different SATA port and try again if the issues continue it's likely the disk. 1 Quote
dotn Posted June 1, 2020 Author Posted June 1, 2020 I replaced power cable and used different SATA port. Data rebuilt end up with the same error. So it has to be faulty disk. Thanks Quote
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