从VG中去除PV unknown device

LVM分区中查看PV时，出现如下错误：

# pvscan

Couldn‘t find device with uuid .........

PV   /dev/sda2                  VG  VolGroup00    lvm2 [17.99GB/0  free]

PV   unknown device        VG  VolGroup00    lvm2[2.21GB/2.21GB]

解决方法：从VG中去除PV unknown device

采用 vgreduce --removemissing /dev/VolGroup00 命令去除未知或已丢失的VG

从VG中去除特定的PV:

vgreduce VolGroup00 /dev/sdb1

删除PV:

pvremove /dev/sdb1