[Solved] Fix Common Problems - Disk (parity) has read errors

[sketchy]

My parity disk is showing as having read errors in Fix Common Problems and errors under the main page:

In the system log:

Aug 13 15:34:43 Tower kernel: print_req_error: I/O error, dev sdg, sector 4983868568
Aug 13 15:34:43 Tower kernel: md: disk0 read error, sector=4983868504

I'd guess read errors at a couple of hundred sectors.

 

The disk has not been disabled and both short and extended SMART tests have passed (disk smart report attached).

I have performed two parity checks last check today finding 0 errors.

 

Attached is also the full diagnostics.

Am i right in saying that these bad sectors are likely to increase in number and that i should start thinking about replacing this disk?

tower-smart-20180813-2018.zip

tower-diagnostics-20180813-2019.zip

[JorgeB]

That disk is failing, it might have passed SMART but there are a lot of raw read and multi zone errors, as well as UNC errors on the SMART report, you should replace it, IMO sooner rather than later.

 

 

[sketchy]

Thankyou @johnnie.black for checking the smart report. I will replace this disk.

[sketchy]

Incase this helps others. I received guidance under another thread to free up a data disk and use in place of the failing parity disk.