[linux-lvm] Restoring LVM after HDD crash

[c.j.]

Hi list!

I have troubles restoring my crashed lvm. I tried to add another HDD to my
LV but the disk was broken and now my LV is broken too ;(

How can I resotre my lv?

pvscan shows:

jserver:~# pvscan
  Couldn't find device with uuid 'eGwrO9-pZh4-66vo-cuLr-5cZm-Kk7b-FIcLXN'.
  Couldn't find device with uuid 'wHd06a-T0yf-aqrt-wZZk-z7jW-5gcs-TO2Vp6'.
  Couldn't find device with uuid 'eGwrO9-pZh4-66vo-cuLr-5cZm-Kk7b-FIcLXN'.
  Couldn't find device with uuid 'wHd06a-T0yf-aqrt-wZZk-z7jW-5gcs-TO2Vp6'.
  PV /dev/sde2        VG jserver        lvm2 [931,27 GB / 0    free]
  PV /dev/sdd1        VG jserver        lvm2 [931,51 GB / 0    free]
  PV unknown device   VG jserver        lvm2 [931,51 GB / 0    free]
  PV unknown device   VG jserver        lvm2 [931,51 GB / 0    free]
  PV /dev/sdb         VG jserver_data   lvm2 [931,51 GB / 0    free]
  PV /dev/sdc         VG jserver_data   lvm2 [931,51 GB / 0    free]
  Total: 6 [5,46 TB] / in use: 6 [5,46 TB] / in no VG: 0 [0   ]

lvs -a -o +devices -P shows

server:~# lvs -a -o +devices -P
  Partial mode. Incomplete volume groups will be activated read-only.
  Couldn't find device with uuid 'eGwrO9-pZh4-66vo-cuLr-5cZm-Kk7b-FIcLXN'.
  Couldn't find device with uuid 'wHd06a-T0yf-aqrt-wZZk-z7jW-5gcs-TO2Vp6'.
  Couldn't find device with uuid 'eGwrO9-pZh4-66vo-cuLr-5cZm-Kk7b-FIcLXN'.
  Couldn't find device with uuid 'wHd06a-T0yf-aqrt-wZZk-z7jW-5gcs-TO2Vp6'.
  LV           VG           Attr   LSize Origin Snap%  Move Log Copy%
Convert Devices
  jlan_root    jserver      -wi---
3,64T                                       /dev/sde2(256)
  jlan_root    jserver      -wi---
3,64T                                       /dev/sdd1(0)
  jlan_root    jserver      -wi---
3,64T                                       unknown device(0)
  jlan_root    jserver      -wi---
3,64T                                       unknown device(0)
  jlan_swap    jserver      -wi---
1,00G                                       /dev/sde2(0)
  jserver_home jserver_data -wi-ao
1,82T                                       /dev/sdb(0)
  jserver_home jserver_data -wi-ao
1,82T                                       /dev/sdc(0)
  jserver_root jserver_ka   -wi-d-
1,82T                                       /dev/sde2(0)
  jserver_root jserver_ka   -wi-d-
1,82T                                       /dev/sdd1(0)


jserver is broken VG

my question is: how do i restore jserver?
i've read some howtows like
http://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/mdatarecover.html
but how can I be sure that i use the right uuid for the right disks?

thx in advantage :)

chrisi
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