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Replace data/parity-drive


FDMK
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I'm a bit in a squeeze, I have a array that consists of the following:

 

P - WD12TB

D - WD12TB - disabled because of read/write errors.

D - MX500

D - MX500

 

I have ordered a 18TB disk to replace the disk with the IO-errors but found out that I have to replace the parity drive because the replacement is bigger than the data-drive. Can I do the following and keep all of my data?

 

1. Stop the array

2. Power down the system

3. Replace the faulty drive with the 18TB

4. Switch the old parity drive to the data-slot

5. assign the 18TB drive to the parity-slot

6, start the array

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1 minute ago, trurl said:

Not entirely clear what "consume" means in this context but no matter.

 

Do you intend to rebuild the disk or not? Is the emulated disk mountable?

I intend to keep my data :) The way I see it is that the parity-disk contains all of my data, no? Can I execute the plan I wrote?
What I meant by 'consume' is that I can play the media that is on the share. I will post the diag.

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Apr 29 23:44:10 FDMNAS kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Apr 29 23:44:10 FDMNAS kernel: ata3.00: revalidation failed (errno=-2)
Apr 29 23:44:16 FDMNAS kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Apr 29 23:44:16 FDMNAS kernel: ata3.00: revalidation failed (errno=-2)
Apr 29 23:44:22 FDMNAS kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Apr 29 23:44:22 FDMNAS kernel: ata3.00: revalidation failed (errno=-2)
Apr 29 23:44:22 FDMNAS kernel: ata3.00: disable device
Apr 29 23:44:28 FDMNAS kernel: ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Apr 29 23:44:28 FDMNAS kernel: ata3.00: detaching (SCSI 3:0:0:0)

 

Disk dropped offline, did you replace both power and SATA cables? If yes swap ports with a different disk, if it happens again to the same disk it's likely a disk problem.

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  • 3 weeks later...
  • Solution

It has been a while. Took a lot of testing and rebuilding but I think I have pinpointed the issue now.

I applied the tunables from powertop and that seems to be the issue, especially the 'Enable SATA link power management', when those are applied it takes a couple of days and/or disk sleep cycles to 'fail' the disk.

 

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