Root Logical volume spanned across two physical volumes and the corresponding VG is in partial mode

Issue

• Root Logical volume spanned across two physical volumes and the corresponding VG is in partial mode

$ cat df
Filesystem                           1K-blocks      Used       Available   Use%      Mounted on
/dev/mapper/systemvg-LogVol00     20408956        8566724     10798904    45%        /

  LV       VG         Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert LV Tags Devices          
  LogVol00 systemvg -wi-ao--p-  19.90g                                                             /dev/sda2(102400)
  LogVol00 systemvg -wi-ao--p-  19.90g                                                             unknown device(0)
  LogVol01 systemvg -wi-ao---- 899.00g                                                             /dev/sda2(0)     
  LogVol01 systemvg -wi-ao---- 899.00g                                                             /dev/sdb1(0)     
  LogVol02 systemvg -wi-ao----  20.00g                                                             /dev/sda2(105602)
  LogVol02 systemvg -wi-ao----  20.00g                                                             /dev/sdc(0)      
  LogVol03 systemvg -wi-ao----   2.51g                                                             /dev/sda2(104960)

  VG         Attr   Ext   #PV #LV #SN VSize   VFree VG UUID                                VProfile #VMda VMdaFree  VMdaSize  #VMdaUse VG Tags
  systemvg wz-pn- 4.00m   4   4   0 944.49g 3.08g 5bduDB-3Bel-HlRl-RGya-pnKV-rm4K-f2O4Id   3   506.50k  1020.00k        3 

VG systemvg has 4 PVs and root logical volume LogVol00 has two underlying PVs viz; /dev/sda2 and a device shown as unknown device. Unknown device is seen to be /dev/sdd2 which is present in the system however not in the VG due to its corrupt VG metadata.