Re: disk non-destructive bad-block write/fix?

From: Mehmet Erol Sanliturk <m.e.sanliturk_at_gmail.com>
Date: Tue, 20 Sep 2022 04:23:34 UTC 
My opinion is :

Please replace this disk as soon as possible by copying its contents
into a suitable disk .




With my best wishes for all .

Mehmet Erol Sanliturk





On Tue, Sep 20, 2022 at 6:41 AM Gary Aitken <freebsd@dreamchaser.org> wrote:

> I have a system I need to back up and my only available backup disk is
> throwing a lot of errors like:
>
>    (da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 3c fd e5 68 00 00 40 00
>    (da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
>    (da0:umass-sim0:0:0:0): Retrying command
>    (da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 00 3c fd e6 68 00 00 20 00
>    (da0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
>
> Is there a way to exercise the free blocks on a ufs disk and move all
> defective ones to the bad-block list?
>
> Or is that already happening in the above scenario?
>
> The command was
>    find . | grep -iv -f ./backup_ignores.txt | cpio -pmd
> /mnt/backup_20220919/
>
> The disk is about 40% full but I'm wondering if the whole rest of it is
> trashed.
>
> Thanks,
>
> Gary
>
>