LVM UUID 손상시 복구

1. pvscan 을 통한 손상된 영역에 대한 UUID 값확인

[root@TestDB01 ~]# pvscan

  Couldn't find device with uuid kUEZm9-vJEj-73Nr-3InO-fpnQ-boPV-7X48Wo.

  PV /dev/cciss/c0d0p2   VG vg_sys   lvm2 [558.62 GB / 408.62 GB free]

  PV /dev/sddlmaa        VG vg_app   lvm2 [50.00 GB / 0    free]

  PV /dev/sddlmab        VG vg_app   lvm2 [50.00 GB / 0    free]

  PV /dev/sddlmac        VG vg_app   lvm2 [50.00 GB / 14.99 GB free]

  PV unknown device      VG vg_app   lvm2 [50.00 GB / 14.99 GB free]

  Total: 5 [758.61 GB] / in use: 5 [758.61 GB] / in no VG: 0 [0   ]

[root@TestDB01 ~]# 

2. Volume Group 에 대한 inactive 처리

vgchange -an --partial

3. LVM umount 처리

umount /dev/vg_app/lv_oracle

umount /dev/vg_app/lv_oralog

umount /dev/vg_app/lv_orawork

umount /dev/vg_app/lv_tools

4. LVM inactive 처리

lvchange -an /dev/vg_app/lv_oracle

lvchange -an /dev/vg_app/lv_oralog

lvchange -an /dev/vg_app/lv_orawork

lvchange -an /dev/vg_app/lv_tools

5. LVM에 대한 최신 Archive 확인

[root@TestDB01 ~]# ls -lrt /etc/lvm/archive/

total 40

-rw------- 1 root root 2471 Dec 28  2012 vg_sys_00000-504991809.vg

-rw------- 1 root root 1599 Jan  2  2013 vg_app_00000-2090231488.vg

-rw------- 1 root root 1578 Jan  2  2013 vg_app_00001-1510162880.vg

-rw------- 1 root root 1957 Jan  2  2013 vg_app_00002-1235012877.vg

-rw------- 1 root root 2320 Jan  2  2013 vg_app_00003-1617890527.vg

-rw------- 1 root root 2675 Jan  4  2013 vg_app_00004-1388681102.vg

-rw------- 1 root root 3014 Jan  4  2013 vg_app_00005-310784485.vg

-rw------- 1 root root 2676 Jan  4  2013 vg_app_00006-36224850.vg

-rw------- 1 root root 3037 Mar 24  2013 vg_app_00007-441176834.vg

[root@TestDB01 ~]# 

6. 문제되는 Physical Volume 에 대한 UUID 갱신 및 복구 처리

pvcreate --uuid "kUEZm9-vJEj-73Nr-3InO-fpnQ-boPV-7X48Wo" --restorefile /etc/lvm/archive/vg_app_00007-441176834.vg /dev/sddlmad

7. VG recorvery 처리

vgcfgrestore vg_app

8. VG active 처리

vgchange -ay --partial 

9. pvscan 을 통한 UUID 정상여부 확인

pvscan

10. 시스템 Reboot 을 통한 부팅시 정상 Load 및 mount 확인

init 6