Moose_Flunky Posted March 7 Share Posted March 7 Checked my server this morning (running 6.11.5 pro) when I saw this message: kernel: critical medium error, dev sdm, sector 10920746360 op 0x0:(READ) flags 0x0 phys_seg 27 prio class 0 This is part of my parity, one of two 10 TB HGST drives that are mirrored. SMART shows no errors. Is this an indicator that the drive may be starting to fail? If so, do I have to replace the pair if I wish to increase the size of the parity drives or can I replace one at a time? logterminal SDM.txt Quote Link to comment
wuudogg Posted March 8 Share Posted March 8 Shut down dockers and vms and 'stop' the array. Click on the disk and Run Extended Smart. Smart is a great tool but won't catch every possible drive failure scenario, even extended. Since you have already stopped the array, might as well take her all the way down and reseat the cables. Shut down and remove power. Reseat: HDD if using a backplane Power cables Data cables Reseat the HBA in the PCI slot if you have one Quote Link to comment
wuudogg Posted March 8 Share Posted March 8 And no, if you keep logging errors or having a problem, you only will need to replace the single drive that is failing. Quote Link to comment
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