June 26, 20233 yr Hello, just today one of my drives (Disk 2) because disabled with the red X (Unraid 6.9.2). I have attached the diagnostics for it as well. I was transferring some files on it when it started to get errors for example (Jun 26 09:27:53 Tower kernel: md: disk2 write error, sector=194517880). A little bit before this started happening I had gotten a notification about "UDMA CRC error count" for the drive as well. I am not sure how to proceed and am asking for any advice on what appears to be the issue and how to resolve it, like if the drive is starting to die and should be replaced etc or some other action needs to be taken. tower-diagnostics-20230626-1009.zip Edited June 26, 20233 yr by J0my
June 26, 20233 yr Community Expert Solution Looks like a SATA cable problem, replace the cable and if the emulated disk is mounting and contents look correct you can rebuild on top.
June 27, 20233 yr Author 16 hours ago, JorgeB said: Looks like a SATA cable problem, replace the cable and if the emulated disk is mounting and contents look correct you can rebuild on top. Thanks for the reply, the cable is from the raid card and is a mini sas to 4 sata break out cable (not the exact cable I have just an example of it), should I replace the whole cable or just swap to another of the 3 sata connectors on the cable? The case is also a Silverstone ds380b so the cable plugs into the hotswap pcb. Also with the rebuilding it is to deselect the drive, run the array, turn off the array, then re-select the drive? Edited June 27, 20233 yr by J0my
June 27, 20233 yr Community Expert If you have a new cable replace it, if not swap disks and see if the problem follows the cable. https://docs.unraid.net/unraid-os/manual/storage-management#rebuilding-a-drive-onto-itself
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