Hard disk defective or repairable?

[Flyk3]

Hi,

 

I have a 15 disk pool with Unraid 6.10.3 on GIGABYTE C246M-WU4 with Intel Xeon E-2246G and 32GiB ECC RAM. I first copied everything to the server before creating the parity disk. This was probably a big mistake.

 

Since this morning I can't access a disc anymore and the log says the following:

 

Sep 11 13:21:01 Server kernel: ata8.00: error: { ABRT }
Sep 11 13:21:01 Server kernel: ata8.00: configured for UDMA/133 (device error ignored)
Sep 11 13:21:01 Server kernel: sd 9:0:0:0: [sdi] tag#10 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=DRIVER_OK cmd_age=0s
Sep 11 13:21:01 Server kernel: sd 9:0:0:0: [sdi] tag#10 Sense Key : 0x5 [current] 
Sep 11 13:21:01 Server kernel: sd 9:0:0:0: [sdi] tag#10 ASC=0x21 ASCQ=0x4 
Sep 11 13:21:01 Server kernel: sd 9:0:0:0: [sdi] tag#10 CDB: opcode=0x28 28 00 00 7b 70 84 00 00 04 00
Sep 11 13:21:01 Server kernel: blk_update_request: I/O error, dev sdi, sector 8089732 op 0x0:(READ) flags 0x0 phys_seg 2 prio class 0
Sep 11 13:21:01 Server kernel: Buffer I/O error on dev sdi, logical block 4044866, async page read
Sep 11 13:21:01 Server kernel: Buffer I/O error on dev sdi, logical block 4044867, async page read

 

I also can't start the array anymore because this disc is missing. I have already changed the cables and have restarted the server. 

Can I maybe repair the disc with xfs_repair? If yes, how? I can not start the array in Maintenance mode.

 

Regards

Flyk3

 

Edited September 11, 2022 by Flyk3

[trurl]

attach diagnostics to your NEXT post in this thread

[Flyk3]

Please find it attached.

flyk3-server-diagnostics-20220911-1403.zip

[JorgeB]

You can try swapping cables to confirm but it looks like a disk problem, not even generating a valid SMART report.

[Flyk3]

I replaced the cables and and also connected them to another controller. Without success.

 

So stupid. Have waited all this time with the parity disk, because I gradually copied the data from the old server over and moved the disks one by one. I even precleared the moved hard drives, with no errors.

 

Anyway, any tips to recover the data?

[JorgeB]

You can try ddrescue but it doesn't look very good.

[Flyk3]

Thank you for your support! I will try it after the parity is completely synced 🙂

[trurl]

6 hours ago, Flyk3 said:

waited all this time with the parity disk

You must always have another copy of anything important and irreplaceable. Parity is not a substitute for backup.