Solved Zpool scrub shows a few checksum errors

[Alain De Vos]

How can i have a list of the files in the directory which are affected and have errors ?

 

[Alain De Vos]

zpool status -xv

 

[Cath O'Deray]

Incidentally, errors are sometimes transient, even when there's no redundancy e.g. a single-disk pool.

 

[mer]

If the scrub fixed things, then the zpool status command probably won't show anything.

 

[Cath O'Deray]

Yeah, and sometimes reportedly permanent errors will disappear (from a single disk pool) without a scrub.

 

[Alain De Vos]

I deleted the files with erroneous checksums (they were luckily not important) . Currently the pool reports as:

zpool status -xv
Message ID: ZFS-8000-8A : Some filesystem data is corrupt...
errors: Permanent errors have been detected in the following files:
         ZUSB/x:<0x98112>
        ZUSB/x:<0x98114>
        ZUSB/x:<0x9811f>
        ZUSB/x:<0x98162>
        ZUSB/x:<0x9816b>
        ZUSB/x:<0x9806c>
        ZUSB/x:<0x9807c>
...

 

[Cath O'Deray]

zpool status please. Also (the usual) the version of FreeBSD. Thanks

 

[Alain De Vos]

I had done by accident very "dirty/nasty" things to the drive using "dd".
It's even ok that 99.9% of the data survived. I'll do a scrub , pump over the data and reformat completely.

 

[Cath O'Deray]

Thanks. For future reference, re: the inode numbers, <https://serverfault.com/a/576917/91969>.

 

[mer]

I'll do a scrub , pump over the data and reformat completely.

I'm assuming this mean "pulling the data off that drive onto another and then reformat the original drive completely"?

 

[Alain De Vos]

Yes.

 

[Alain De Vos]

Interesting enough.
After a scrub of two days, 0bytes where repaired by zfs, i.e. no redundancy in the filesystem (for data) for a 1-disk system.
But i have a list of files with checksum errors (i used skein), which is also interesting to know.

 

[Cath O'Deray]

… a list of files with checksum errors

Named files, or inode numbers?

(i used skein),

What's that?