[SOLVED] Parity Errors - Diagnostics attached

[schnub]

Dear Community,

 

i´ve got 2 12TB Parity Drives.

 

One Parity drive lost power and became faulty / out of sync.

 

So i´ve rebuild the parity on the drive and checked the parity again.

 

now it say that the parity got "some" errors.

 

The checkbox "write corrections to parity" was checked.

 

my diagnostics file is attached.

 

Thank you!

 

best regards

 

schnub

bronas-diagnostics-20210520-1325.zip

[JorgeB]

Btrfs is also detecting data corruption on the cache pool, you should run memtest (and a scrub on cache).

[schnub]

25 minutes ago, JorgeB said:

Btrfs is also detecting data corruption on the cache pool, you should run memtest (and a scrub on cache).

Scrub finished:

 

[JorgeB]

Look in the syslog, it will identify the corrupt file then delete/restore form backups, or it will reference metadata if that's what corrupt.

[schnub]

Ok so now, the corrupted file on the cache is gone.

 

But the parity check should have wrote the corrections to the array (not the cache array), am i correct?

 

Is there a place where i can see that the parity drives are all fine now? 

[JorgeB]

6 minutes ago, schnub said:

But the parity check should have wrote the corrections to the array (not the cache array), am i correct?

Correct, but the fact that there was corruption on cache and sync errors points to a hardware issue, hence why I recommended running memtest, you can also run another check, if it finds more errors there's still a problem.

[schnub]

I´ve sorted that issue out.

 

It was a faulty cache drive.

 

This can now be closed.

 

Thanks !