Mirrors and Stripes and Bad Disks, Oh My

[Ivan Voras]

Tony Holmes wrote:

> 1. Bring up the system in single user mode.
> 2. Destroy gm0 (with ad4 and ad8)
> 3. Recreate gm0 with ad4 only
> 4. Break ad10 out of the gm1 mirror pair - this way during recovery I 
>    can build another copy of the stripe using ad8/ad10 if I need it. 
>    I expect to hit bad sectors on the copy off. I also do expect lost
>    files/data if I have to go this route due to the time that ad8 was not
>    mirrored.
> Will this give me gm0 with a master ad4?

Yes.

> If I am able to recreate the stripe with identical parameters, will the
> file system be visible.

Yes.

Don't touch anything else, though (like simultaneously updating to
another FreeBSD version, etc...)

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 259 bytes
Desc: OpenPGP digital signature
Url : http://lists.freebsd.org/pipermail/freebsd-geom/attachments/20090929/a9cbbce3/signature.pgp