sonofdbn Posted February 5 Share Posted February 5 I have an 8TB disk which has reported 93 read errors during a (now paused) parity check. I have a 16TB pre-cleared disk on hand to replace it. Can I just cancel the parity check and replace the 8TB disk with the larger one? (My dual parity drives are 16TB). I think the answer is "yes", but just want to check in case I mess up something. Quote Link to comment
trurl Posted February 5 Share Posted February 5 Attach diagnostics to your NEXT post in this thread. Quote Link to comment
sonofdbn Posted February 5 Author Share Posted February 5 Diagnostics attached. tower-diagnostics-20240205-1109.zip Quote Link to comment
Solution trurl Posted February 5 Solution Share Posted February 5 Does look like a disk problem on disk 6. You might run an extended SMART self-test on it. But if you want to replace with a larger disk, that seems like a good idea also, since you need more capacity. Do any of your other disks have SMART warnings ( 👎 ) on the Dashboard page? Quote Link to comment
sonofdbn Posted February 6 Author Share Posted February 6 I do have SMART warning on 6 out of the other 9 disks, but they are all UDMA CRC Error count warnings. I suppose it sounds bad, but from what I've read, this type of error is usually an indication of a loose wiring connection and the system has had to rely on this error correction to ensure that the data being read/written is correct. (For casual readers, please don't assume this is correct - it's just my impression from reading.) Generally these error counts don't change unless I've opened up the case and replaced a hard disk or perhaps during a parity check. So I assume vibration or movement has loosened something. But after a few warnings the error count doesn't increase. I've taken a look at the various SATA connectors and can't see anything obviously wrong. So now I just ignore the errors unless the error count increases consistently. (My server runs 24x7.) Think this might have happened once or twice, but not recently. And I think I "fixed" it by jiggling SATA connectors or just swapping them. Quote Link to comment
trurl Posted February 6 Share Posted February 6 Correct. You can click on those warnings to acknowledge and it will warn again if they increase. Quote Link to comment
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