![重启后逻辑卷丢失](https://linux22.com/image/43303/%E9%87%8D%E5%90%AF%E5%90%8E%E9%80%BB%E8%BE%91%E5%8D%B7%E4%B8%A2%E5%A4%B1.png)
Centos-6,系统挂起并硬重启后的 LVM2。
lvdisplay
并且lvscan
不返回任何卷。它之前有卷...如何恢复?
LV(逻辑卷)上有数据 - 作为 NFS 导出共享。
VG 列在 /etc/lvm/backup/datastore1 下。有什么办法可以恢复LV吗?
vgdisplay
-- Volume group --
VG Name datastore1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 10.92 TiB
PE Size 4.00 MiB
Total PE 2861467
Alloc PE / Size 0 / 0
Free PE / Size 2861467 / 10.92 TiB
VG UUID 7uq001-dUxd-I1WS-PPu2-ljT3-FybY-D9ddx2
猫 /etc/lvm/backup/datastore1
datastore1 {
id = "7uq001-dUxd-I1WS-PPu2-ljT3-FybY-D9ddx2"
seqno = 2
status = ["RESIZEABLE", "READ", "WRITE"]
flags = []
extent_size = 8192 # 4 Megabytes
max_lv = 0
max_pv = 0
metadata_copies = 0
physical_volumes {
pv0 {
id = "kRGDrz-YFyf-EIKk-0om6-9H78-jgle-9z0B27"
device = "/dev/cciss/c0d1p1" # Hint only
status = ["ALLOCATABLE"]
flags = []
dev_size = 23441142637 # 10.9156 Terabytes
pe_start = 2048
pe_count = 2861467 # 10.9156 Terabytes
}
}
}
答案1
如果您要从备份文件恢复 LVM 分区方案,您可以尝试:
vgcfgrestore datarestore1
如果一切正常,请尝试通过以下方式激活所有 LV:
vgchange -ay
并对所有卷执行 fsck fsck
,例如fsck /dev/datarestore1/XX
如果没有发生错误,请尝试通过以下方式安装它们mount -a