ERROR - The boot volume state is ONLINE: data corruption

[Nomak]

Goodmorning,

one of my FreeNAS sent me an alert about error of data corruption into boot volume.

With command

zpool status -v

pool: freenas-boot
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 2.50K in 0h1m with 3 errors on Thu Mar 9 03:46:53 2017
config:

NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 3
da0p2 ONLINE 0 0 6

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

freenas-boot/ROOT/default@2016-08-01-04:55:02:/usr/local/lib/perl5/5.20/JSON/PP.pm
freenas-boot/ROOT/default@2016-08-01-04:55:02:/usr/local/lib/perl5/5.20/Locale/Codes/Language_Codes.pm
freenas-boot/ROOT/default@2016-08-01-04:55:02:/usr/local/lib/nss/libnssckbi.so.1

My questions are:
Can I copy these three files from a new fresh installation of the same version of FreeNAS (FreeNAS-9.10-STABLE-201606270534)?
In this specific case, I have another identically FreeNAS where I do replica tasks, Can I copy the three files from this last?
This three files what are they for?

Thanks in advance

 

[rs225]

The USB stick is most likely failing. However, nothing serious has been damaged yet.

You will need to get a new boot USB stick, preferably one from the manual that is recommended for FreeNAS use.

You can then upgrade to a mirror. Those damaged files will still be damaged, but they are not important because they are in an old snapshot.

Or, you can do a re-install. You will need to backup your configuration, do a new install to the new stick, and then restore your configuration. Discard the old stick.

 

[Nomak]

Thanks rs225 for the answer.
I don't understand why you talk about old snapshot...
I did not set snapshot for the boot partition, is an automatic task?
Also i did never update the FreeNAS OS since the original installation.
Please, can you explain me about old snapshot for the boot partition?

Very thanks

 

[rs225]

I don't know why the snapshot is there; maybe someone else can answer.

For now, make a backup of your configuration, or work on upgrading the boot partition to a mirror.