eribob Posted April 19, 2021 Share Posted April 19, 2021 Hi! One of my drives failed today. I have attached the diagnostics. The SMART error I think is the culprit is "UDMA CRC Error Count". It seems to not always be so serous though, do you have any thoughts on it? I have more space than I need on the array and would like to remove the drive from the array, but keep the data that was on it. The drive is 4TB and I have more than 4TB free on the array. The guide in the Unraid wiki is a bit confusing, I would be very happy if someone could walk me through how to achieve this? Thank you! Erik monsterservern-diagnostics-20210419-1028.zip Quote Link to comment
JorgeB Posted April 19, 2021 Share Posted April 19, 2021 Diags are after rebooting so we can't see what happened, but CRC errors are a connection problem, usually a bad SATA cable. Quote Link to comment
eribob Posted April 19, 2021 Author Share Posted April 19, 2021 Thank you for the suggestion, Unfortunately I tried to replace the SATA cable (it is connected to an HBA card, so I switched it to another SATA connector from that card). The drive is still disabled by unraid. All other drives that are connected to that HBA card seem to be working normally. The UDMA CRC Error count has increased over the last couple of months from about 5 to 42 now. /Erik Quote Link to comment
eribob Posted April 19, 2021 Author Share Posted April 19, 2021 37 minutes ago, JorgeB said: Diags are after rebooting so we can't see what happened, but CRC errors are a connection problem, usually a bad SATA cable. Since replacing the SATA cable did not help is there anything else in the SMART report that indicates why the drive failed? The drive is a Seagate IronWolf 4TB. # ATTRIBUTE NAME FLAG VALUE WORST THRESHOLD TYPE UPDATED FAILED RAW VALUE 1 Raw read error rate 0x000f 077 064 044 Pre-fail Always Never 55465484 3 Spin up time 0x0003 095 093 000 Pre-fail Always Never 0 4 Start stop count 0x0032 100 100 020 Old age Always Never 132 5 Reallocated sector count 0x0033 100 100 010 Pre-fail Always Never 0 7 Seek error rate 0x000f 089 060 045 Pre-fail Always Never 803115697 9 Power on hours 0x0032 088 088 000 Old age Always Never 11183 (164 86 0) 10 Spin retry count 0x0013 100 100 097 Pre-fail Always Never 0 12 Power cycle count 0x0032 100 100 020 Old age Always Never 132 184 End-to-end error 0x0032 100 100 099 Old age Always Never 0 187 Reported uncorrect 0x0032 100 100 000 Old age Always Never 0 188 Command timeout 0x0032 100 099 000 Old age Always Never 1 189 High fly writes 0x003a 100 100 000 Old age Always Never 0 190 Airflow temperature cel 0x0022 071 062 040 Old age Always Never 29 (min/max 29/30) 191 G-sense error rate 0x0032 100 100 000 Old age Always Never 0 192 Power-off retract count 0x0032 100 100 000 Old age Always Never 3 193 Load cycle count 0x0032 071 071 000 Old age Always Never 59695 194 Temperature celsius 0x0022 029 040 000 Old age Always Never 29 (0 17 0 0 0) 197 Current pending sector 0x0012 100 100 000 Old age Always Never 0 198 Offline uncorrectable 0x0010 100 100 000 Old age Offline Never 0 199 UDMA CRC error count 0x003e 200 199 000 Old age Always Never 42 240 Head flying hours 0x0000 100 253 000 Old age Offline Never 3737 (41 241 0) 241 Total lbas written 0x0000 100 253 000 Old age Offline Never 30794778888 242 Total lbas read 0x0000 100 253 000 Old age Offline Never 237940858011 /Erik Quote Link to comment
JorgeB Posted April 19, 2021 Share Posted April 19, 2021 40 minutes ago, eribob said: The drive is still disabled by unraid. That's expected, once a drive gets disable it needs to be rebuilt, and if CRC continue to increase there's still a problem. Quote Link to comment
eribob Posted April 19, 2021 Author Share Posted April 19, 2021 Thank you. I am rebuilding the drive now. Fingers crossed. Quote Link to comment
eribob Posted April 19, 2021 Author Share Posted April 19, 2021 Rebuild worked fine. Lets hope that the CRC errors do not rise further. Thank you again for the quick support. 1 Quote Link to comment
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