Not really RedHat but CentOS, close enough.
While moving my fileserver to a new rack I inadvertently connected the cables of the disk arrays to the wrong SAS ports. When I rebooted the disksgot assigned new UUIDs but the old ones were not removed, so the volume group will not activate and mount.
My question is how do I remove the old metadata?
System details:
CentOS 6.2
Dell Poweredge r210
LSI MegaRAID 9280
2 Sans digital disk enclosures
Here is the LVM info
Output of vgdisplay
[root@fileserver1 ~]# vgdisplay
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
--- Volume group ---
VG Name vg_fileserver1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 7
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 232.34 GiB
PE Size 4.00 MiB
Total PE 59479
Alloc PE / Size 56272 / 219.81 GiB
Free PE / Size 3207 / 12.53 GiB
VG UUID H5j4pR-FfXp-lmJI-HCSH-vzze-foY3-WYeN9p
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
WARNING: Duplicate VG name raid_vg: YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
Couldn't find device with uuid dXKp0D-ePyc-0agV-nyvO-inYa-IeHx-oqnTzH.
--- Volume group ---
VG Name raid_vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 2
Act PV 1
VG Size 47.29 TiB
PE Size 128.00 MiB
Total PE 387398
Alloc PE / Size 387398 / 47.29 TiB
Free PE / Size 0 / 0
VG UUID mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
WARNING: Duplicate VG name raid_vg: YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
--- Volume group ---
VG Name raid_vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 2
Act PV 1
VG Size 47.29 TiB
PE Size 128.00 MiB
Total PE 387398
Alloc PE / Size 387398 / 47.29 TiB
Free PE / Size 0 / 0
VG UUID YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68
Here is the output of pvdisplay
[root@fileserver1 ~]# pvdisplay
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
Couldn't find device with uuid dXKp0D-ePyc-0agV-nyvO-inYa-IeHx-oqnTzH.
Couldn't find device with uuid ZpLv0l-ZU6W-aaJN-vhz0-Q1YM-Dg1f-QIkaky.
--- Physical volume ---
PV Name /dev/sdc2
VG Name vg_fileserver1
PV Size 232.34 GiB / not usable 0
Allocatable yes
PE Size 4.00 MiB
Total PE 59479
Free PE 3207
Allocated PE 56272
PV UUID Hde0Er-DQ7d-gNEH-Xdcg-RsTO-dzcX-OZFQkj
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
--- Physical volume ---
PV Name unknown device
VG Name raid_vg
PV Size 35.47 TiB / not usable 128.00 MiB
Allocatable yes (but full)
PE Size 128.00 MiB
Total PE 290575
Free PE 0
Allocated PE 290575
PV UUID dXKp0D-ePyc-0agV-nyvO-inYa-IeHx-oqnTzH
--- Physical volume ---
PV Name /dev/sdb
VG Name raid_vg
PV Size 11.82 TiB / not usable 128.00 MiB
Allocatable yes (but full)
PE Size 128.00 MiB
Total PE 96823
Free PE 0
Allocated PE 96823
PV UUID dLp6jQ-RN49-Pn78-qDzG-cb53-Z8jw-E2TJ6u
--- Physical volume ---
PV Name /dev/sda
VG Name raid_vg
PV Size 35.47 TiB / not usable 128.00 MiB
Allocatable yes (but full)
PE Size 128.00 MiB
Total PE 290575
Free PE 0
Allocated PE 290575
PV UUID dpKb1Y-70sL-nVPh-ldNp-eU6U-GC8V-PGEeHH
--- Physical volume ---
PV Name unknown device
VG Name raid_vg
PV Size 11.82 TiB / not usable 128.00 MiB
Allocatable yes (but full)
PE Size 128.00 MiB
Total PE 96823
Free PE 0
Allocated PE 96823
PV UUID ZpLv0l-ZU6W-aaJN-vhz0-Q1YM-Dg1f-QIkaky
And here is what I have tried
[root@fileserver1 ~]# vgrename mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM oldraid_vg
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
WARNING: Duplicate VG name raid_vg: YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
Couldn't find device with uuid dXKp0D-ePyc-0agV-nyvO-inYa-IeHx-oqnTzH.
Cannot change VG raid_vg while PVs are missing.
Consider vgreduce --removemissing.
[root@fileserver1 ~]# vgreduce --removemissing mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
WARNING: Duplicate VG name raid_vg: Existing YTeFq5-zMZR-LC2B-4ceg-aDkj-urx6-q25s68 (created here) takes precedence over mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM
Volume group "mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM" not found
Internal error: Attempt to unlock unlocked VG mBV0yW-CEQG-Tc2l-UolE-gpm9-5vAQ-nmMjsM.
As you can see there are 2 PVs that are an unknown device and that seems to be causing problems.
How should I proceed?
Ihave googledand googled but have found now solution.