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magnumpraw

2nd drive failed during rebuild

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I had shutdown my Unraid while we were gone for vacation and upon rebooting, Drive 5 was labelled as missing. I purchased a new drive, replaced drive 5 and started a parity rebuild. Almost immediately, drive 4 started having read errors and eventually dropped off.

 

What are my options at this point and what are suggestions to proceed?

Thanks!

mediaserver-diagnostics-20200801-1102.zip

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1 hour ago, magnumpraw said:

Drive 5 was labelled as missing. I purchased a new drive

Possibly this was due to some problem other than an actual failed disk. Connection issues are far more common than bad disks. Perhaps it wasn't even necessary to buy another disk.

 

Disk4 isn't showing up in SMART in those diagnostics. Often when mucking about inside the case, such as when replacing a disk, the connections of other disks will be disturbed. Possibly this is what has happened here.

 

Shutdown, check all connections, all disks, SATA and power, both ends, including any splitters.

 

Reboot and post new diagnostics.

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Posted (edited)

ok, will do. My disks are all in a front slide-out Icy-Dock backplane, so I never open the case when replacing disks. But I will open it up, re-seat the cables, and boot up again

Edited by magnumpraw

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Ok, so I shutdown, re-seated the cables, replaced the original Disk 5, and booted the server back up. It does appear that both Disk 4 and 5 are functioning. 

Is putting back old Disk 5 OK?

If so, Should I do a parity rebuild or a new config with old Disk 5 in?

If not, do I put new Disk 5 back in and do a parity rebuild?

mediaserver-diagnostics-20200801-1419.zip

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Since you have a replacement disk, rebuild to the replacement and keep the original in case there is a problem rebuilding.

 

You could try to rebuild to the original if you want instead if you would rather return the new disk, for example.

 

In either case, you should rebuild the data and not parity.

 

 

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My bad, I meant rebuild Data.

 

I tried rebuilding data with old Disk 5, but got the error that the disk was too small (since new disk 5 was larger)

I have put new Disk 5 back in and started Data rebuild.

Hopefully that does the trick.

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48 minutes ago, magnumpraw said:

new disk 5 was larger

Didn't notice that. Win-win with more capacity.

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Few hours in and data rebuild seems good so far. Will report back with final results, but thanks in advance for the extremely quick response and help!

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