Where to find the status of resilver/scrub

[Snake3y3s]

Im running a older version of FreeNAS (11.0-U4 ) (yes...i know... need to upgrade)

If the NAS was shut down or turned off unexpectedly (due to power out) FreeNAS will run a check on your system. Where do I see the status of that check?
or if I try to shut down it asks if I am sure because the Nas is performing a resilver/scrub
Where can i find the status of these processes?

 

[ChrisRJ]

I do a zpool status -v on the command line

 

[Snake3y3s]

okay cool
I get his as a result:

Code:

root@NAS ~]# zpool status -v                                                   
  pool: NASvol1                                                                 
 state: ONLINE                                                                 
  scan: scrub in progress since Sat Jan  9 13:17:05 2021                       
        23.2G scanned out of 6.93T at 70.9K/s, (scan is slow, no estimated time)
        0 repaired, 0.33% done                                                 
config:                                                                         
                                                                                
        NAME                                            STATE     READ WRITE CKS
UM                                                                             
        NASvol1                                         ONLINE       0     0   
 0                                                                             
          raidz2-0                                      ONLINE       0     0   
 0                                                                             
            gptid/1a1054dd-c7ee-11e7-9d5a-a0369fd4e01a  ONLINE       0     0   
 0                                                                             
            gptid/1b47af73-c7ee-11e7-9d5a-a0369fd4e01a  ONLINE       0     0   
 0                                                                             
            gptid/1c83e873-c7ee-11e7-9d5a-a0369fd4e01a  ONLINE       0     0   
 0                                                                             
            gptid/1db63dbb-c7ee-11e7-9d5a-a0369fd4e01a  ONLINE       0     0   
 0                                                                             
            gptid/1ee63fe8-c7ee-11e7-9d5a-a0369fd4e01a  ONLINE       0     0   
 0                                                                             
                                                                                
errors: No known data errors                                                   
                                                                                
  pool: freenas-boot                                                           
 state: ONLINE                                                                 
  scan: scrub repaired 0 in 0h0m with 0 errors on Tue Jun  1 03:45:33 2021     
config:                                                                         
                                                                                
        NAME        STATE     READ WRITE CKSUM                                 
        freenas-boot  ONLINE       0     0     0                               
          da0p2     ONLINE       0     0     0                                 
                                                                                
errors: No known data errors                           

Is there some way to stop the scan/scrub?

 

[ChrisRJ]

I am not aware of one, simply because I never had the need. Why would you want to do this? If this is about shutting down the system, you can still do that while the scrub is running.

 

[stw500]

zpool scrub Poolname to start or
zpool scrub -s Poolname to stop if I remember correctly. Use the manpage....

 

[c77dk]

wow - that's a slow scrub. Even if it's SMR drives scrub shouldn't be that slow (if I remember correctly). Resilver on the other hand would be slow as f***. I would be worried with this slow a scrub.

Regarding stopping the scrub: https://www.truenas.com/community/threads/stop-scrub-or-just-shutdown.22054/

 

[Snake3y3s]

@c77dk there is a issue with one of my drives (I have posted about it in this thread just scroll down a bit)
This is making my NAS unbearably slow so i wanted to check if its not the scrub that is slowing it down, or slowing it down further...
I am in the process of trying to back up my entire NAS to a cold storage 8TB drive but its painfully slow. Have been copying to it for the past 2 months getting a average of 1000 Kbytes/s

We also have load shedding here in South Africa so at one stage the NAS did not shut down fast enough so when the power came back and I turned the NAS back on, it must have started the scan/scrub in the background.

so I want to cancel it and check if that isnt what is causing my ada3 to have its disk activity locked at 100%

 

[Snake3y3s]

Hey Guys... sorry that I am Necroing a old thread...

So I still have not sorted out my NAS... one drive is still horribly slow, But I have all the data backed up now and have a replacement drive.
Problem is that now in South Africa... we are having intense bouts of Load-shedding, so I am kind of scared to swap out the drive and do a resilver.

Question is:
Can I replace the drive and let it start the resilver BUT, am I able to power it down mid resilver? and then if I start it up again, will it resume and still be fine?

 

[Brian M]

Hey Guys... sorry that I am Necroing a old thread...

So I still have not sorted out my NAS... one drive is still horribly slow, But I have all the data backed up now and have a replacement drive.
Problem is that now in South Africa... we are having intense bouts of Load-shedding, so I am kind of scared to swap out the drive and do a resilver.

Question is:
Can I replace the drive and let it start the resilver BUT, am I able to power it down mid resilver? and then if I start it up again, will it resume and still be fine?

It shows as a RaidZ2, you should be safe to replace a single drive, while still having protection should even 1 more drive fail.

You are able to power down during resilver, it's not recommended, but people have done it, and it should resume near where it left off.