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标题: 做了LVM的硬盘，数据如何恢复 [打印本页]

作者: johncan 时间: 2009-10-10 21:08
标题: 做了LVM的硬盘，数据如何恢复
我系统突然崩溃了，原来做了LVM，现在把硬盘挂在到另外一台机上，做过改卷组名的操作
  vg02为需要进行数据恢复的硬盘
vgrename dbxPio-sVla-zAaQ-HFWH-iAzs-rKff-uKb40u /dev/vg02

[root@localhost log]# vgdisplay
  --- Volume group ---
  VG Name             VolGroup00
  System ID
  Format             lvm2
  Metadata Areas       1
  Metadata Sequence No  5
  VG Access          read/write
  VG Status          resizable
  MAX LV             0
  Cur LV             2
  Open LV             2
  Max PV             0
  Cur PV             1
  Act PV             1
  VG Size             465.66 GB
  PE Size             32.00 MB
  Total PE             14901
  Alloc PE / Size    14901 / 465.66 GB
  Free  PE / Size    0 / 0
  VG UUID             SzrcKw-byOC-SArf-mEl6-mm5a-z3h6-3xxkEE

  --- Volume group ---
  VG Name             vg02
  System ID
  Format             lvm2
  Metadata Areas       3
  Metadata Sequence No  24
  VG Access          read/write
  VG Status          resizable
  MAX LV             0
  Cur LV             0
  Open LV             0
  Max PV             0
  Cur PV             3
  Act PV             3
  VG Size             298.18 GB
  PE Size             4.00 MB
  Total PE             76335
  Alloc PE / Size    0 / 0
  Free  PE / Size    76335 / 298.18 GB
  VG UUID             dbxPio-sVla-zAaQ-HFWH-iAzs-rKff-uKb40u



[root@localhost ~]# vgchange -ay /dev/vg02
  0 logical volume(s) in volume group "vg02" now active

[root@localhost log]# pvscan
  PV /dev/sda2 VG VolGroup00 lvm2 [465.66 GB / 0 free]
  PV /dev/sdb1 VG vg02       lvm2 [100.00 MB / 100.00 MB free]
  PV /dev/sdb2 VG vg02       lvm2 [297.99 GB / 297.99 GB free]
  PV /dev/sda1 VG vg02       lvm2 [100.00 MB / 100.00 MB free]
  Total: 4 [763.84 GB] / in use: 4 [763.84 GB] / in no VG: 0 [0 ]

[root@localhost log]# lvscan
  ACTIVE          '/dev/VolGroup00/LogVol00' [463.72 GB] inherit
  ACTIVE          '/dev/VolGroup00/LogVol01' [1.94 GB] inherit

好像vg02的LV都找不到了，可用空间为整个硬盘，是不是里面的数据都没了？
数据还有救吗？

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