PV not reconized after vgcfgrestore?

After my a system (lvm 1.0.6) hung, volume group data (out of 2) disappeard. There were no IO-errors in the system log.

A pvscan will not show the lost PV, and vgimport tells:
vgimport -- ERROR "pv_read(): PV identifier invalid" reading physical volume "/dev/hde1"

Now, when I try to restore, it should fix the PV in my understanding. But pvscan still does not bring it back. What could I do?

Your help is appreciated, as it would save me a day of work since the last backup :-) Rainer Hoerbe

# vgcfgrestore -l -l -n data /dev/hde1
vgcfgrestore -- INFO: using backup file "/etc/lvmconf/data.conf"
--- Volume group ---
VG Name               data
VG Access             read/write
VG Status             NOT available/resizable
VG #                  1
MAX LV                256
Cur LV                3
Open LV               0
MAX LV Size           255.99 GB
Max PV                256
Cur PV                1
Act PV                1
VG Size               149.04 GB
PE Size               4 MB
Total PE              38153
Alloc PE / Size       38145 / 149 GB
Free  PE / Size       8 / 32 MB
VG UUID               RGvrGj-qVpF-e3ke-n17z-oQAx-g3c6-WHvNYu

--- Logical volume ---

LV Name                /dev/data/m-data
VG Name                data
LV Write Access        read/write
LV Status              NOT available
LV #                   1
# open                 0
LV Size                80 GB
Current LE             20480
Allocated LE           20480
Allocation             next free
Read ahead sectors     1024
Block device           58:1

--- Logical volume ---

LV Name                /dev/data/e-data
VG Name                data
LV Write Access        read/write
LV Status              NOT available
LV #                   2
# open                 0
LV Size                5.20 GB
Current LE             1332
Allocated LE           1332
Allocation             next free
Read ahead sectors     1024
Block device           58:2

--- Logical volume ---

LV Name                /dev/data/video
VG Name                data
LV Write Access        read/write
LV Status              NOT available
LV #                   3
# open                 0
LV Size                63.80 GB
Current LE             16333
Allocated LE           16333
Allocation             next free
Read ahead sectors     1024
Block device           58:3

--- Physical volume ---

PV Name               /dev/hde1
VG Name               data
PV Size               149.04 GB [312560577 secs] / NOT usable 4.31 MB [LVM: 277 KB]
PV#                   1
PV Status             available
Allocatable           yes
Cur LV                3
PE Size (KByte)       4096
Total PE              38153
Free PE               8
Allocated PE          38145
PV UUID               y5rlkX-JZy2-yukW-8hkA-xeoh-U8qe-ulpuMs