Dead PV....recovering data

Good morning everyone.

I was away on vacation and when i got back, I booted my server up. Unfortunately, one of the HD's didn't come back.

The hard drive was a WD4000YR 400GB.

PV /dev/hdb --> Hitachi 400GB
PV /dev/sdd --> WD4000YR 400GB (the dead one)

Both PV's were part of my Video Volume group.

Now that my WD hard drive is dead(not seen by bios at all :() the videovg wont load. Is it possible to recover the data on the remaining PV?

To my understanding, the data is stripped across the PV's in the volume group.....

Right now im loosing around 570GB of videos :(

Thanks for any help

Patrick

To help outline my configuration see below. PV1 is the missing drive:
[root@fc4 backup]# cat /etc/lvm/backup/videovg
# Generated by LVM2: Tue Jan 31 18:55:29 2006

contents = "Text Format Volume Group"
version = 1

description = "Created *after* executing 'lvextend -l +95388 /dev/videovg/movieslv'"

creation_host = "fc4.patpic.com" # Linux fc4.patpic.com 2.6.14-1.1656_FC4smp #1 SMP Thu Jan 5 22:24:06 EST 2006 i686
creation_time = 1138751729 # Tue Jan 31 18:55:29 2006

videovg {
       id = "mqumMs-fVhb-mOhv-KgEj-ZJqW-pWhD-3RDbQR"
       seqno = 4
       status = ["RESIZEABLE", "READ", "WRITE"]
       extent_size = 8192              # 4 Megabytes
       max_lv = 0
       max_pv = 0

       physical_volumes {

               pv0 {
                       id = "bHJ1PS-yEg4-QlD0-D62k-nhyy-2TVe-b84gL0"
                       device = "/dev/hdb"     # Hint only

                       status = ["ALLOCATABLE"]
                       pe_start = 384
                       pe_count = 95388        # 372.609 Gigabytes
               }

               pv1 {
                       id = "rH7yLu-aAoG-Gcc7-C2ZM-r2jP-lU1L-Cg8IsY"   
// this is the bad drive
                       device = "/dev/sdc"     # Hint only

                       status = ["ALLOCATABLE"]
                       pe_start = 384
                       pe_count = 95388        # 372.609 Gigabytes
               }
       }

       logical_volumes {

               movieslv {
                       id = "ijlCES-kuxY-YHnA-FlDo-cm7a-yYlO-cXHmga"
                       status = ["READ", "WRITE", "VISIBLE"]
                       segment_count = 2

                       segment1 {
                               start_extent = 0
                               extent_count = 95388    # 372.609 Gigabytes

                               type = "striped"
                               stripe_count = 1        # linear

                               stripes = [
                                       "pv0", 0
                               ]
                       }
                       segment2 {
                               start_extent = 95388
                               extent_count = 95388    # 372.609 Gigabytes

                               type = "striped"
                               stripe_count = 1        # linear

                               stripes = [
                                       "pv1", 0
                               ]
                       }
               }
       }
}                                        

which sounds *BAD* but see below

If I read this correctly, your volume is spanned, and given an assumption of reasonable contiguity of files you should be able to recover a good deal from your remaining drive.

Off the top of my head, I don't recall the right way to do this, but hopefully someone will chime in with the right answer, otherwise I'll see if I can think of it tomorrow or so :-)

Regards,
Paddy

Perl 6 will give you the big knob. -- Larry Wall