How to remove bad disk from LVM2 with the less data loss on other PVs?

Question

I had a LVM2 volume with two disks. The larger disk became corrupt, so I cant pvmove. What is the best way to remove it from the group to save the most data from the other disk? Here is my pvdisplay output:

Couldn't find device with uuid WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3.
  --- Physical volume ---
  PV Name               unknown device
  VG Name               media
  PV Size               1,82 TiB / not usable 1,05 MiB
  Allocatable           yes (but full)
  PE Size               4,00 MiB
  Total PE              476932
  Free PE               0
  Allocated PE          476932
  PV UUID               WWeM0m-MLX2-o0da-tf7q-fJJu-eiGl-e7UmM3

  --- Physical volume ---
  PV Name               /dev/sdb1
  VG Name               media
  PV Size               931,51 GiB / not usable 3,19 MiB
  Allocatable           yes (but full)
  PE Size               4,00 MiB
  Total PE              238466
  Free PE               0
  Allocated PE          238466
  PV UUID               oUhOcR-uYjc-rNTv-LNBm-Z9VY-TJJ5-SYezce

So I want to remove the unknown device (not present in the system). Is it possible to do this without a new disk ? The filesystem is ext4.

Answer 1

From the vgreduce man page:

   --removemissing
          Removes all missing physical volumes from the volume group, if there are no  logical  volumes
          allocated  on  those.  This resumes normal operation of the volume group (new logical volumes
          may again be created, changed and so on).

          If this is not possible (there are logical volumes referencing the missing physical  volumes)
          and  you  cannot or do not want to remove them manually, you can run this option with --force
          to have vgreduce remove any partial LVs.

          Any logical volumes and dependent snapshots that were partly on the missing disks get removed
          completely. This includes those parts that lie on disks that are still present.

          If  your  logical  volumes  spanned several disks including the ones that are lost, you might
          want to try to salvage data first by  activating  your  logical  volumes  with  --partial  as
          described in lvm (8).