Restore partial volume group

Hi,

one disk crashed in a volume group which have 2 disks.

Heinz told me
"With the missing disk, you need LVM2 (eg, in Fedora > 1) to access the non-quorum VG."

I installed LVM 2 , it tells me that it expects 2 disks.

#vgscan
Reading all physical volumes. This may take a while...
1 PV(s) found for VG MonGroupeVolume: expected 2 Volume group "MonGroupeVolume" not found

#pvscan
1 PV(s) found for VG MonGroupeVolume: expected 2
PV /dev/hdc1 is in exported VG MonGroupeVolume [28.51 GB / 18.51 GB
free]
Total: 1 [18.51 GB] / in use: 1 [18.51 GB] / in no VG: 0 [0 ]

#lvscan
1 PV(s) found for VG MonGroupeVolume: expected 2
Volume group "MonGroupeVolume" not found

   # pvdisplay
 1 PV(s) found for VG MonGroupeVolume: expected 2
 Physical volume "/dev/hdc1" of volume group "MonGroupeVolume" is exported
 --- Physical volume ---
 PV Name               /dev/hdc1
 VG Name               MonGroupeVolume (exported)
 PV Size               28.51 GB / not usable 4.22 MB
 Allocatable           yes
 PE Size (KByte)       4096
 Total PE              7298
 Free PE               4738
 Allocated PE          2560
 PV UUID               Wpa9Ti-SAI0-rhCh-03K6-7D55-m7XA-42Twvh

What I have to do now without mistakes ?

Is it possible to attach this physical volume to another VG and get his datas ?

thank you,

St�phane Danel