Degraded ZFS Pool

[ZeroThirtySeven]

From this, is ada3p2 the bad drive?

 

[Samuel Tai]

Yes, it's showing checksum errors, so there's sectors where the contents don't match the checksum.

 

[ZeroThirtySeven]

Thanks for the answer!

I was expecting it to show only the drive needing to be replaced as degraded. Also, smartctl -t short/long /dev/ada3 fails on this drive.

"a mandatory SMART command failed: Exiting. To continue, add one or more '-t permissive' options" is the error.

 

[garm]

The rest is degraded due to the checksum errors you have on the vdev.. resilver a new drive and see if that fixes your issue, but prepare to restore from backup just in case

 

[sretalla]

Since it's all checksum errors, look at the cabling and power to that disk first... perhaps change the cable too if you're going to replace the disk.

 

[ZeroThirtySeven]

I was able to replace the drive And it Resilvered. Performance is back, but the OS still shows pool as degraded. I think I need to somehow "detatch" the old drive from the OS but when I atempt to, I get errors.

 

[Singman]

Hi,
To replace a disk, always follow the manual :

10. Storage — FreeNAS®11.3-U4 User Guide Table of Contents

www.ixsystems.com

 

[ZeroThirtySeven]

Hi,
To replace a disk, always follow the manual :

10. Storage — FreeNAS®11.3-U4 User Guide Table of Contents

www.ixsystems.com

Thanks, I did use that to replace the disk. Step 3 didn't make much sence.

Code:

3. After the drive replacement process is complete, re-add the replaced disk in the S.M.A.R.T. Tests screen. 

I tried this, but the drive is no longer present in the machine to actully test, nor does it show up as a drive that is able to be tested.

Could you be more specific as to which part I screwed up on?