November 22, 2025Nov 22 So, I had to shut down my Unraid server yesterday as I was doing electrical work around the house. When I restarted it I had 1 disk not showing up and it had a red x and the error for "Device is missing (disabled), Contents emulated". I've identified which physical drive it is and I can hear it making sounds that aren't normal. I can see the disk in the BIOS but when I run fdisk -l from the command line in Unraid I can't see the disk at all but I can see the other 3 disks that are part of the array. There are no SMART reports that I can run as well. When I start the array in maintenance mode I can check filesystem status and it returns "No file system corruption detected". I have unfortunately rebooted the server at this point, so my syslog is not super useful, but I'll attach the diagnostics file. Any help on what I can do to try and diagnose what went wrong? At this point I'm just trying to get the drive seen within some tool so that I can wipe it and RMA it. Thanks! diagnostics-20251122-1143.zip
November 23, 2025Nov 23 Community Expert Swap both cables with another disk, if the issue follows the disk, i.e., strange noises and still not detected correctly, it likely failed.
November 23, 2025Nov 23 Author Yeah, already done that and no luck. Really I'm just trying to figure out if there is any way I can wipe the drive before RMAing. At this point I can't think of any other way to access the drive to be able to wipe it.
November 23, 2025Nov 23 45 minutes ago, slackmountain said:Yeah, already done that and no luck. Really I'm just trying to figure out if there is any way I can wipe the drive before RMAing. At this point I can't think of any other way to access the drive to be able to wipe it.No luck? The clicking noise didn't showed up on the same drive?
November 23, 2025Nov 23 Author 2 hours ago, gyto6 said:No luck? The clicking noise didn't showed up on the same drive?Sorry I meant when I switched cables and SATA cables and ports the issue still persisted with the same drive. So Iām fairly certain the drive is done for. But Iād really love to be able to wipe the drive before RMAing, but I may not have any options other than degaussing it or drilling a hole in it, which would void the warranty š
November 23, 2025Nov 23 6 minutes ago, slackmountain said:Sorry I meant when I switched cables and SATA cables and ports the issue still persisted with the same drive. So Iām fairly certain the drive is done for. But Iād really love to be able to wipe the drive before RMAing, but I may not have any options other than degaussing it or drilling a hole in it, which would void the warranty šIndeed, this ticking noise is the sign of drive failure usually.. Hammer is a good option too.
November 24, 2025Nov 24 Community Expert It's not possible to wipe a drive that is not detected; just send it as is.
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