Need Help With ZFS

[TransformedBG]

SO i got a warning that my ZFS pool was degraded.  Luckily im running ZFSZ2 but i need to replace these drives and thats the part i need help with.

 

I have all 8 drives on one card, and need to replace the 2 drives that are faulted. I keep searching for an answer online, but its for other things like FreeNAS or whatever. Im just trying to figure out can i just bring the drives offline , swap the new drive in its place and replace it? is there a good guide to do this? any help would be appreciated im fairly new to ZFS, and was lucky enough to get this going a few years back. 

[coxifred]

Did u try replace command ?

Try a zpool status -xv mulgore for more details

 

Try to repair:

 

zpool scrub mulgore (can be long)

zpool clear mulgore

request after with zpool status

 

For replace :

 

zpool replace mulgore bad_device new_device

 

 

[TransformedBG]

21 minutes ago, coxifred said:

zpool replace mulgore bad_device new_device

 

does this mean i can unplug the bad device and plug in a new device and then it will copy the data?

 

[JorgeB]

5 hours ago, TransformedBG said:

is there a good guide to do this?

Are you using v6.12 or v6.11 with the zfs plugin? Also please post the diagnostics. 

[coxifred]

2 hours ago, TransformedBG said:

 

does this mean i can unplug the bad device and plug in a new device and then it will copy the data?

 

No, normally you add the new disk, before, Oh damn, you haven't any port left on your card ?

 

 

[TransformedBG]

7 hours ago, coxifred said:

No, normally you add the new disk, before, Oh damn, you haven't any port left on your card ?

 

 

yeah that the problem... that's the part I'm trying to figure out. would i need to add another card to add the drive? 

 

8 hours ago, JorgeB said:

Are you using v6.12 or v6.11 with the zfs plugin? Also please post the diagnostics. 

im using 6.11.5 , but im not using the Unraid ZFS yet. I had this going since 6.9 

mulgore-diagnostics-20230506-1024.zip

Edited May 6, 2023 by TransformedBG

[coxifred]

Anyway yours disks are dead (zfs point of  view).

I'll suggest to remove one failed disk and replug a new one, normally zfs should resilver it.

 

I m more familiar with solaris version of zfs.

 

What about the scrub command?

Edited May 6, 2023 by coxifred

[TransformedBG]

3 hours ago, coxifred said:

Anyway yours disks are dead (zfs point of  view).

I'll suggest to remove one failed disk and replug a new one, normally zfs should resilver it.

 

I m more familiar with solaris version of zfs.

 

What about the scrub command?

Ive already ran it.. short of trying to change my cable / hard drive. I think my array is going to die. 

[JorgeB]

SMART looks OK for both disks, but both are showing some UDMA CRC errors, so you should replace the SATA cables, then type

zpool clear mulgore

and run a scrub.

 

Also note that you can upgrade Unriad to 6.12, import the pool and then use the GUI to manage it.