Hi

I have 4 disks in my array 

5TB Parity Drive

 

1TB Data Drive

5TB Data Drive

5TB Data Drive

 

I have followed the instructions here: https://wiki.unraid.net/Replacing_a_Data_Drive to replace the 1TB drive with a 4TB unit. As i restart my server I can select the new 4TB drive in disk position 1 initially then it disappears.

 

I've added a short video after i restart the server after unassigning the old drive and, shutting down and replacing the drive then restarting.

 

Thanks.

Please post the diagnostics: Tools -> Diagnostics

Here is the diagnostics.

 

Thanks

atlas-diagnostics-20200602-1745.zip

Constant ATA errors:

 

Jun  2 17:30:36 Atlas kernel: ata1.00: status: { DRDY ERR }
Jun  2 17:30:36 Atlas kernel: ata1.00: error: { ABRT }
Jun  2 17:30:36 Atlas kernel: ata1.00: configured for UDMA/133
Jun  2 17:30:36 Atlas kernel: ata1: EH complete
Jun  2 17:30:36 Atlas kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jun  2 17:30:36 Atlas kernel: ata1.00: irq_stat 0x40000001
Jun  2 17:30:36 Atlas kernel: ata1.00: failed command: READ DMA
Jun  2 17:30:36 Atlas kernel: ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 22 dma 4096 in
Jun  2 17:30:36 Atlas kernel:         res 51/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
Jun  2 17:30:36 Atlas kernel: ata1.00: status: { DRDY ERR }
Jun  2 17:30:36 Atlas kernel: ata1.00: error: { ABRT }
Jun  2 17:30:36 Atlas kernel: ata1.00: configured for UDMA/133
Jun  2 17:30:36 Atlas kernel: ata1: EH complete
Jun  2 17:30:36 Atlas kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jun  2 17:30:36 Atlas kernel: ata1.00: irq_stat 0x40000001
Jun  2 17:30:36 Atlas kernel: ata1.00: failed command: READ DMA
Jun  2 17:30:36 Atlas kernel: ata1.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 23 dma 4096 in
Jun  2 17:30:36 Atlas kernel:         res 51/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
Jun  2 17:30:36 Atlas kernel: ata1.00: status: { DRDY ERR }
Jun  2 17:30:36 Atlas kernel: ata1.00: error: { ABRT }
Jun  2 17:30:36 Atlas kernel: ata1.00: configured for UDMA/133

 

Try new cables (both power and SATA) and/or a different SATA port, if the same it's likely a disk problem.

I have another drive i can try it with (same WD red 4TB type) I can't change the cable as its plugged into the back plane of my Dell T340.

 

Thanks

Tried it with other 4TB drive and same problem, pretty confident these drives are ok as they were working elsewhere just a few days ago.

 

I re-plugged in the original 1TB drive in (hot swap while array was down) and it is now rebuilding from parity.

 

Thanks

Possibly there's some compatibility issue then.

Seems so, but the drives are just standard 4TB WD reds, if i find a solution I will be sure to post it.

 

Thanks.