Scrub didn't clear the error?

ISJ

Dabbler
Joined
Aug 4, 2019
Messages
45
Hello,

I have an "Online" volume with the status:
One or more devices has experienced an error resulting in data corruption. Applications may be affected.

I deleted the file (I dont care about it) and ran the following command to scrub the pool, it completed but there is no change to the status.
zpool scrub DiskArray-4TB

This is the result:

Code:
  pool: DiskArray-4TB
 state: ONLINE
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: http://illumos.org/msg/ZFS-8000-8A
  scan: scrub repaired 0 in 0 days 12:01:59 with 0 errors on Tue Jan 12 04:24:28 2021
config:

        NAME                                            STATE     READ WRITE CKSUM
        DiskArray-4TB                                   ONLINE       0     0     0
          raidz1-0                                      ONLINE       0     0     0
            gptid/f15eb26b-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/f328a231-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/f41570bf-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/f4f4e3fa-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/f5cf106a-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/f7324f80-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/f8bc0c4a-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/fa73b0e0-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/fc3eca0c-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
            gptid/fdea4c34-603e-11ea-88cd-0015173f9cdd  ONLINE       0     0     0
        cache
          gptid/c078b438-cb99-11ea-9eba-0015173f9cdd    ONLINE       0     0     0

errors: Permanent errors have been detected in the following files:

        DiskArray-4TB/NextCloud:<0x563a>

  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0 days 00:00:08 with 0 errors on Tue Jan 12 03:45:08 2021
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          ada1p2    ONLINE       0     0     0

errors: No known data errors


I've ran the commands required ( I thought ) to correct this issue but it persists. Any ideas?

Thanks!
 

Chris Moore

Hall of Famer
Joined
May 2, 2015
Messages
10,080
Usually, if there is a problem with the pool where data was corrupted, there is a cause.
Sometimes that cause may be a faulty disk.
Have you checked the health of your disk drives?
 

ISJ

Dabbler
Joined
Aug 4, 2019
Messages
45
Good idea, I did check the smartctl data and didn't see any failures or CRC counts over 0. All the drives are low hour count but not so low that were likely looking ta at a cradle death.

I appreciate your thoughts on this im sort of lost on next steps. The file thats indicated now is not addressable so.
 

Samuel Tai

Never underestimate your own stupidity
Moderator
Joined
Apr 24, 2020
Messages
5,398
The error is in the Nextcloud plugin's metadata. You could try destroying that plugin, rescrubbing, and then recreating the plugin.
 

Samuel Tai

Never underestimate your own stupidity
Moderator
Joined
Apr 24, 2020
Messages
5,398
raidZ1 with 10 (ten) hdd
be serious
@Dan Tudora, please be less sarcastic. I agree this pool isn't laid out optimally, but I would offer specific recommendations; i.e., rebuilding it as RAIDZ2, to enable it to survive the loss of 2 drives instead of having no safety net with RAIDZ1.
 

Dan Tudora

Patron
Joined
Jul 6, 2017
Messages
276
hello
sarcastic is MY second name (in IT and data security, sorry)
let's help this user and forget that
greets
 

Samuel Tai

Never underestimate your own stupidity
Moderator
Joined
Apr 24, 2020
Messages
5,398
Thanks. I was busy at work for a time.
 

Dan Tudora

Patron
Joined
Jul 6, 2017
Messages
276
helo
do goooooood something at yours work
I am glead to heAR that
becouse what what WE do count
I HOPE
 

Dan Tudora

Patron
Joined
Jul 6, 2017
Messages
276
hello
shutdown system
think
think again
read documnetation (I fave not rhtigth to say F*** doc
I appreciate your thoughts on this im sort of lost on next steps. The file thats indicated now is not addressable so.
 

Samuel Tai

Never underestimate your own stupidity
Moderator
Joined
Apr 24, 2020
Messages
5,398

ISJ

Dabbler
Joined
Aug 4, 2019
Messages
45
@Dan Tudora
Troll less hard off the bat, it's less obvious and you'll get people to actually bite. RAID5 for home use is fine, you don't even know my backup methods lol

@Samuel Tai
Thanks unfortunately I don't see that file on the drive. This also appeared after deleting the previous file. Is this perhaps some sort of garbage file? I've never seen anything like it.
 

ISJ

Dabbler
Joined
Aug 4, 2019
Messages
45
Here's a SS of a LS command, I dont have any NextCloud plugins removable without breaking it.
1610665303774.png
 

Samuel Tai

Never underestimate your own stupidity
Moderator
Joined
Apr 24, 2020
Messages
5,398
OK, if you've already deleted the file, try rescrubbing the pool again. If you have snapshots that refer to the deleted file, you should delete those too. Once there are no more references to the corrupt file, scrub your pool again. It may take multiple scrubs before ZFS is happy again.
 

ISJ

Dabbler
Joined
Aug 4, 2019
Messages
45
Looks like a second scan will clear it as you said sir.
1610666330114.png


EDIT: You did mean "zfs scrub {PoolName}" yes?
 
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