pvs显示unknown device

示例如下

[root@gezi ~]# pvs
  WARNING: Device for PV D1LLfT-3Hle-NbrP-5165-Q6WR-2UWF-2xEIR3 not found or rejected by a filter.
  PV             VG   Fmt  Attr PSize   PFree  
  /dev/xvda2     vg1  lvm2 a--   79.51g  23.62g
  /dev/xvdb           lvm2 ---  250.00g 250.00g
  unknown device vg1  lvm2 a-m  250.00g 250.00g
[root@gezi ~]# vgs
  WARNING: Device for PV D1LLfT-3Hle-NbrP-5165-Q6WR-2UWF-2xEIR3 not found or rejected by a filter.
  VG   #PV #LV #SN Attr   VSize   VFree  
  vg1    2   2   0 wz-pn- 329.50g 273.62g
[root@gezi ~]# vgreduce --removemissing /dev/vg1
  WARNING: Device for PV D1LLfT-3Hle-NbrP-5165-Q6WR-2UWF-2xEIR3 not found or rejected by a filter.
  WARNING: Device for PV D1LLfT-3Hle-NbrP-5165-Q6WR-2UWF-2xEIR3 not found or rejected by a filter.
  Wrote out consistent volume group vg1
[root@gezi ~]# 
[root@gezi ~]# pvs
  PV         VG   Fmt  Attr PSize   PFree  
  /dev/xvda2 vg1  lvm2 a--   79.51g  23.62g
  /dev/xvdb       lvm2 ---  250.00g 250.00g
[root@gezi ~]#

说明:

If a logical volume contains a physical volume that fails, you cannot use that logical volume. To remove missing physical volumes from a volume group, you can use the --removemissing parameter of the vgreduce command, if there are no logical volumes that are allocated on the missing physical volumes.
来自:Red_Hat_Enterprise_Linux-7-Logical_Volume_Manager_Administration-en-US 4.3.7小节。