Need help/advice with gmirror after server crash

[Alexey A. Ukhov]

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

Here is some output of fdisk usage:
*sml# fdisk /dev/ad2*
******* Working on device /dev/ad2 *******
parameters extracted from in-core disklabel are:
cylinders=484521 heads=16 sectors/track=63 (1008 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=484521 heads=16 sectors/track=63 (1008 blks/cyl)

fdisk: invalid fdisk partition table found
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
    start 63, size 488397105 (238475 Meg), flag 80 (active)
        beg: cyl 0/ head 1/ sector 1;
        end: cyl 168/ head 15/ sector 63
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>

*sml# fdisk /dev/ad3*
******* Working on device /dev/ad3 *******
parameters extracted from in-core disklabel are:
cylinders=484521 heads=16 sectors/track=63 (1008 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=484521 heads=16 sectors/track=63 (1008 blks/cyl)

fdisk: invalid fdisk partition table found
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
    start 63, size 488397105 (238475 Meg), flag 80 (active)
        beg: cyl 0/ head 1/ sector 1;
        end: cyl 168/ head 15/ sector 63
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>

Some ideas what to do with it?
How to restore my data?

Thanks in advance,
Alexey

P.S.: with stupid trick I see that data are still there:
*sml# dd if=/dev/ad2 count=1000|strings*
/home
/usr/local/vpopmail
1000+0 records in
1000+0 records out
512000 bytes transferred in 0.139311 secs (3675228 bytes/sec)