On Oct 2, 2007, at 12:46 PMOct 2, 2007, Alexey A. Ukhov wrote:

Hello all colleagues.

I have the following problem.
I had server with 2 SATA drives worked in gmirror.
Recently we had crash of third (system) HDD.
After FreeBSD reinstalation I see in dmesg:
ad2: 238475MB <Seagate ST3250620A 3.AAD> at ata1-master UDMA100
ad3: 238475MB <Seagate ST3250620A 3.AAD> at ata1-slave UDMA100

And do not see any UFS file slices, partitions, etc.

In /dev I have only /dev/ad2 and /dev/ad3

Mounting is impossible also:
*sml# mount /dev/ad2 /mnt*
mount: /dev/ad2: Operation not permitted

I'm guessing you reinstalled FreeBSD on another drive, and are trying to get your data partition back. Did you remember to load the GEOM kernel module for gmirror? If this isn't loaded, you won't be able to work with the drives.

IIRC, you can load it by either adding geom_mirror_load="YES" to / boot/loader.conf or by typeing 'gmirror' at the command line. You should then be able to mount /dev/mirror/gmX, where X is the mirror number.

Eric F Crist
Secure Computing Networks

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