I have a raspberry Pi 4 NAS with 4 externals HDDs connected to it, which are formatted using LVM2, and OpenMediaVault installed on the RP4. After moving to a new apartment, I tried restarting the NAS but I found one of the drives is dead now (maybe bumped too much during transit). Plugging the single drive in, the drive will sometimes show up under lsblk and sometimes not. Attempting to run commands like smartctl, lvs, fsck, etc. hang because the drive is unresponsive. So the drive is dead. When I set up the LVM2 partitions, I setup a mirrored volume of the primary one
Heres the output of pvdisplay -m after issuing vgchange --activate y --partial Main
WARNING: Couldn't find device with uuid 1agTwi-tGTi-Zs59-sSaa-dBrT-s2AI-9iyRe5.
WARNING: VG Main is missing PV 1agTwi-tGTi-Zs59-sSaa-dBrT-s2AI-9iyRe5 (last written to /dev/sda).
--- Physical volume ---
PV Name /dev/sda
VG Name Main
PV Size 465.73 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 119226
Free PE 0
Allocated PE 119226
PV UUID 3Ss27s-5VhO-7Bul-Fk1G-Ar2C-M8eZ-uqQpEa
--- Physical Segments ---
Physical extent 0 to 119225:
Logical volume /dev/Main/mainlv_rimage_1
Logical extents 715382 to 834607
--- Physical volume ---
PV Name /dev/sde
VG Name Main
PV Size 931.48 GiB / not usable 0
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 238459
Free PE 0
Allocated PE 238459
PV UUID bxxLkf-pdOc-9WfT-ink5-XIlC-o8Nf-OcNmMm
--- Physical Segments ---
Physical extent 0 to 238458:
Logical volume /dev/Main/mainlv_rimage_1
Logical extents 476923 to 715381
--- Physical volume ---
PV Name [unknown]
VG Name Main
PV Size <3.64 TiB / not usable <3.84 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 953861
Free PE 7086
Allocated PE 946775
PV UUID 1agTwi-tGTi-Zs59-sSaa-dBrT-s2AI-9iyRe5
--- Physical Segments ---
Physical extent 0 to 0:
Logical volume /dev/Main/mainlv_rmeta_0
Logical extents 0 to 0
Physical extent 1 to 886047:
Logical volume /dev/Main/mainlv_rimage_0
Logical extents 0 to 886046
Physical extent 886048 to 937486:
Logical volume /dev/Main/mainlv_rimage_1
Logical extents 834608 to 886046
Physical extent 937487 to 942130:
Logical volume /dev/Main/mainlv_rimage_0
Logical extents 886047 to 890690
Physical extent 942131 to 946774:
Logical volume /dev/Main/mainlv_rimage_1
Logical extents 886047 to 890690
Physical extent 946775 to 953860:
FREE
--- Physical volume ---
PV Name /dev/sdc
VG Name Main
PV Size <1.82 TiB / not usable 0
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 476924
Free PE 0
Allocated PE 476924
PV UUID gGktd6-W4Ae-TM73-UueM-lKRW-scgP-PxP6q2
--- Physical Segments ---
Physical extent 0 to 0:
Logical volume /dev/Main/mainlv_rmeta_1
Logical extents 0 to 0
Physical extent 1 to 476923:
Logical volume /dev/Main/mainlv_rimage_1
Logical extents 0 to 476922
The physical volume thats dead (PV Name [unknown]) has pieces from both logical volumes, but the pieces is has from the image volume /dev/Main/mainlv_rimage_1 are small.
Is it possible to recover the data lost from the failed physical volume using the image volumes on the other drives?