Hi,

 

I have built some server for me and am using SAS Seagate drives with LSi controller. Unraid is reporting errors after it does parity build, just in last % of the process. Up to 98% it shows no errors and then gets all in picture in last few %.

 

Also i have tried rebuilding a few times and sometimes one drive shows these errors and next time it doesnt.

 

Can someone explain is these errors "bad" or they are just i/o recovered errors and are ok?

 

Thanks

tower-diagnostics-20210413-1350.zip

Disks are formatted with type 2 protection, try removing that, you can find out how by googling it.

Here is the link you posted a few years ago.

 

http://talesinit.blogspot.com/2015/11/formatted-with-type-2-protection-huh.html

 

Sent to some else yesterday with type 2.

Edited April 13, 20215 yr by SimonF

Stoked for fast answers, thank You Jorge and Simon. Already installed sg3_utils in Nerd Pack under apps and checked all disks, yes type 2 protection. Now put all 8 to format with

 

sg_format --format --fmtpinfo=0 /dev/sdX

Where X is drive letter

 

Will take some day to complete

 

Thanks again!

Edited April 13, 20215 yr by Janis

So the drives finished formatting overnight and now the smartctl -i /dev/sdX shows no more Type 2 formatting.

Will now proceed with parity build and see if errors come up again.

 

 

I can report all issues to be gone now. Disks are fixed, no more errors. Whats pretty cool is that also there is speed penalty while disks are Type 2 Formatted. Before it took 8+ hours to do parity build, but now it took 6 hours.

 

Thanks guys!

 

 

Edited April 15, 20215 yr by Janis