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Two Dead Drives, What Now?

Featured Replies

Moved my server into a new case and lost two 6tb WD Red Plus drives. 

 

Things I have tried: 

  • External HDD Enclosure
  • Different SATA Cables
  • Different Power Cables
  • Checked Mobo BiOS settings

 

At this point I am assuming the drives are lost. I still have my 16tb parity and a 10tb data drive.

 

My question is what is the best way forward. Do I try a direct swap and add two drives? Can I just add one higher capacity drive in their place? Any help is greatly appreciated!

Can you better define 'lost' - are they failing SMART tests? Are they powering up but not showing up in UnRaid? Are the disks simply not powering up at all?

 

Is/was your array a single parity XFS array? or are you dabbling with ZFS?

 

I'm assuming when you've moved into the new case that you're checking both ends of the SATA power connection - disk/enclosure and PSU. I only say this, because I've also just moved my gear into a new case (see signature) and sometimes you think you've plugged something into the PSU and it just ain't so.

  • Author
5 hours ago, Lebowski89 said:

Can you better define 'lost'

Drives are not recognized in the BiOS, also not recognized in unraid. When I placed them into the enclosure, they failed to initialize on my Windows machine due to a "fatal hardware error". It feels like they are not spinning up at all.

 

Yes, single parity and have not dove into zfs at all.

 

The cabeling was what I hoped it was at first, I have swapped out every single cable, tried different SATA ports, etc all to no avail.

  • Community Expert

You can do a new config to recover the remaining drives, and add more if like, parity will need to be resynced after.

  • Author
5 hours ago, JorgeB said:

You can do a new config to recover the remaining drives, and add more if like, parity will need to be resynced after.

Does doing a new config wipe the non dead current drives? Want to preserve as much data as possible 

  • Community Expert
22 minutes ago, jlindz39 said:

Does doing a new config wipe the non dead current drives?

No, you only lose the data from the missing drives.

  • Author
8 hours ago, JorgeB said:

No, you only lose the data from the missing drives.

Ok, preclearing a new disk and then I am going to try this out. 

  • Community Expert
22 hours ago, jlindz39 said:

Moved my server into a new case and lost two 6tb WD Red Plus drives. 

Did you also move the PSU? Or did you try to use modular PSU cables from one case on a new PSU in the new case? There is no standard pinout for modular PSU cables, and many have fried disks using cables for different PSU.

  • Author
14 minutes ago, trurl said:

Did you also move the PSU? Or did you try to use modular PSU cables from one case on a new PSU in the new case? There is no standard pinout for modular PSU cables, and many have fried disks using cables for different PSU.

Same PSU. I actually did think it was this at first, but I checked my other power supper and it isnt modular so all of the cables I have are from this PSU.

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