fix remote degraded gmirror

Robin Becker robin at
Wed Sep 30 09:37:34 UTC 2009

> a simple
> dd if=/dev/zero of=/dev/adX bs=1M count=1
> would fix that if nothing else
> if there's was no existing label, there is nothing to do except gmirror man
> instructions.  Gmirror is block level mirroring which why no other steps are
> needed.
well now I really need advice, the data centre guy successfully inserted another 
disk in the right place and it appears to be the same model. However, smartctl 
-a /dev/ad4 seems to show a number of errors and many of the indicators are 
prefail or old_age.

In addition the disk doesn't have exactly the same length so when I tried to 
insert gmirror complains that it is too small.

What are my options?
Robin Becker

More information about the freebsd-questions mailing list