Hi,

Turned on a box I am building for someone else (after it has been off for a few weeks) and one of the 2 parity drives has disappeared.

 

The GUI tells me it is missing.

When looking at the logs it appears (if I am reading them correctly) that the partition table on the parity drive cannot be read.

 

Feb  1 11:55:50 Media kernel: sd 10:0:6:0: [sdl] tag#4 UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
Feb  1 11:55:50 Media kernel: sd 10:0:6:0: [sdl] tag#4 CDB: opcode=0x88 88 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00
Feb  1 11:55:50 Media kernel: print_req_error: I/O error, dev sdl, sector 0
Feb  1 11:55:50 Media kernel: Buffer I/O error on dev sdl, logical block 0, async page read
Feb  1 11:55:50 Media kernel: sd 10:0:6:0: rejecting I/O to offline device
Feb  1 11:55:50 Media kernel: ldm_validate_partition_table(): Disk read failed.
Feb  1 11:55:50 Media kernel: sd 10:0:6:0: rejecting I/O to offline device
Feb  1 11:55:50 Media kernel: sdl: unable to read partition table

The drive doesn't appear in unassigned drives and I cannot get to any smart information.

I have tried the drive in a different slot (just in case) and that also didn't resolve the issue.

 

Any idea how I can resolve the issue?

I assume I should just be able to format the drive, put it back in the box and rebuild parity from scratch - but as I can't get to the drive how would I go about this?

 

I've attached the diagnostics file as well.

 

Thanks for your help

media-diagnostics-20190201-1157.zip

Connect it to one of the onboard SATA ports, if still the same it's likely a bad disk.

Right, I have connected it to an onboard SATA port and the disk shows up.

It's sdd rather than sdl this time.

It won't let me run a SMART test against it (either short or long) - when I click on start, it flashes stop and then shows the start button again.

 

Any thoughts on what I need to do next?

 

Thanks

media-diagnostics-20190204-2219.zip

Parity2 is valid now, so all appears fine, don't see nothing about failing SMART test on the log, try doing one on the console:

 

smartctl -t short /dev/sdX

 

I have tried putting the drive back into its original bay (it's in a 16 bay server case using HBA's and SFF8087 connectors) and it won't show up.

I've moved it to two other bays and it also doesn't show up.

I tried a different hard drive in the original bay of this disk and that is recognised without any issues.

 

I can't leave the drive attached to the SATA connector on the motherboard, so are there any other options as to why Unraid won't recognise it now unless it's connected to the SATA connector on the motherboard?

It worked fine for months before this.

 

I note these messages are still in the log;

Feb  6 22:16:02 Media kernel: sd 9:0:3:0: rejecting I/O to offline device
Feb  6 22:16:02 Media kernel: sdd: unable to read partition table
Feb  6 22:16:02 Media kernel: sd 9:0:3:0: [sdd] Attached SCSI disk
Feb  6 22:16:03 Media emhttpd: device /dev/sdd problem getting id

 

Any ideas as to whether reformatting the drive on a different system would help?

 

media-diagnostics-20190206-2216.zip

Weird that the disk works on the onboard SATA and not on the HBA, but since the other disks are the same model and do work it suggests there's something wrong with that disk.