Multiple disk errors after array rebuild

[alexrecarey]

Hi everybody, thanks for taking the time to look at my question.

 

One of the disks in my array failed, and I replaced it. The rebuild went OK, but during the course of the rebuild, the parity disk gave plenty of errors (1109). The rebuild completed successfully, and all my disks are green now. However, the syslog is full of errors, and I don't know if I lost data.

 

Is there any way to know? I'm attaching the syslog in case that helps.

 

I assume I should also change the parity disk ASAP as it seems its about to fail?

 

Thanks!

 

 

syslog.txt

[trurl]

Go to Tools-Diagnostics and attach the complete Diagnostics ZIP file to your NEXT post in this thread. 

[alexrecarey]

Thank you, attached

tower-diagnostics-20210621-1359.zip

[JorgeB]

Parity disk appears to be failing, and because of the read errors during the rebuild there will likely be some corruption on the rebuilt disk, unless by luck there was no data in those sectors.

[alexrecarey]

Thanks for the answer. Do you know of any way to check the files on the rebuilt disk and see if they are OK? I seem to remember some filesystems have data corruption safeguards?

[JorgeB]

27 minutes ago, alexrecarey said:

Do you know of any way to check the files on the rebuilt disk and see if they are OK?

Only if you had previously created checksums for all files, or have the same files in for example a backup server, or were using btrfs.

[alexrecarey]

OK, I thought as much, thanks!

 

I haven't been keeping up with the new developments (my system has been rock solid forever), but having BTRF availability for this sort of thing seems interesting! I'll take a look.

 

Thanks again for the replies.