On Sat, Apr 19, 2014, at 12:52 PM, grantksupport@operamail.com wrote:
> Hi,
>
> I've a desktop machine, running Opensuse 13.1/x86_64.
>
> It's booted to a RAID-10 array: "/boot" is on RAID, "/" (root) etc are
> on LV-on-RAID.
>
> I'm up & functional -- I can read/write all existing
> drives/volumes/partitions.
>
> BUT ... today, I attempted to create another, new LV. It FAILs:
>
> lvcreate -L 200G -n LV_TEST /dev/VGD
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked on
> lvcreate invocation. Parent PID 24577: bash
> Incorrect metadata area header checksum on /dev/md127 at
> offset 1069547520
>
> I also notice that none of the {pv,vg,lv}scan tools work anymore, even
> though they used to,
>
> pvscan
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on pvscan invocation. Parent PID 5962: bash
> vgscan
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on vgscan invocation. Parent PID 5962: bash
> lvscan
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on lvscan invocation. Parent PID 5962: bash
>
> UNLESS I now add at least one "-v" flag
>
>
> pvscan -v
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on pvscan invocation. Parent PID 6485: bash
> connect() failed on local socket: No such file or
> directory
> Internal cluster locking initialisation failed.
> WARNING: Falling back to local file-based locking.
> Volume Groups with the clustered attribute will be
> inaccessible.
> Wiping cache of LVM-capable devices
> Wiping internal VG cache
> Walking through all physical volumes
> PV /dev/md127 VG VGD lvm2 [1.82 TiB / 584.97
> GiB free]
> Total: 1 [1.82 TiB] / in use: 1 [1.82 TiB] / in no
> VG: 0 [0 ] <============= "no VG" ?
>
> vgscan -v
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on vgscan invocation. Parent PID 6485: bash
> connect() failed on local socket: No such file or
> directory
> Internal cluster locking initialisation failed.
> WARNING: Falling back to local file-based locking.
> Volume Groups with the clustered attribute will be
> inaccessible.
> Wiping cache of LVM-capable devices
> Wiping internal VG cache
> Reading all physical volumes. This may take a
> while...
> Finding all volume groups
> Finding volume group "VGD"
> Found volume group "VGD" using metadata type lvm2
>
> lvscan -v
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on lvscan invocation. Parent PID 6485: bash
> connect() failed on local socket: No such file or
> directory
> Internal cluster locking initialisation failed.
> WARNING: Falling back to local file-based locking.
> Volume Groups with the clustered attribute will be
> inaccessible.
> Finding all logical volumes
> ACTIVE '/dev/VGD/LV_ROOT' [40.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_SWAP' [8.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_VAR' [6.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_VARCACHE' [2.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_USRLOCAL' [150.00
> GiB] inherit
> ACTIVE '/dev/VGD/LV_HOME' [300.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_DATA' [300.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_VBOX_DATA1' [30.00
> GiB] inherit
> ACTIVE '/dev/VGD/LV_VBOX_DATA2' [20.00
> GiB] inherit
> ACTIVE '/dev/VGD/LV_BACKUPS' [400.00 GiB]
> inherit
> ACTIVE '/dev/VGD/LV_EXTRA1' [20.00 GiB]
> inherit
>
> This article
>
> 6.4. Recovering Physical Volume Metadata
> https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Logical_Volume_Manager_Administration/mdatarecover.html
>
> suggests what I *think* may be a relevant solution,
>
> "If the volume group metadata area of a physical volume is
> accidentally overwritten or otherwise destroyed, you will get an
> error message indicating that the metadata area is incorrect, or
> that the system was unable to find a physical volume with a
> particular UUID. You may be able to recover the data the
> physical volume by writing a new metadata area on the physical
> volume specifying the same UUID as the lost metadata."
>
>
> but I am NOT at all clear/certain that it's the right solution for this
> problem.
>
> Given the data above & below, and anything else I can provide, IS that
> the right approach to fix this?
>
> If it is, I'm hoping to get some help making sure I get this procedure
> right! afaict, that procedure CAN work, but if you get it wrong, you're
> hosed :-/ I understand I'm in over my head here, and appreciate any &
> help I can get!
>
> Thanks! Grant
>
>
>
>
> here's more of the data from my system,
>
> uname -a
> Linux gsvr 3.14.1-1.geafcebd-desktop #1 SMP PREEMPT Mon
> Apr 14 20:10:59 UTC 2014 (eafcebd) x86_64 x86_64 x86_64
> GNU/Linux
>
> rpm -qa | egrep -i "lvm|mdadm" | grep -iv llvm
> lvm2-2.02.98-0.28.14.1.x86_64
> mdadm-3.3-126.1.x86_64
>
> lvs --version
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on lvs invocation. Parent PID 6485: bash
> LVM version: 2.02.98(2) (2012-10-15)
> Library version: 1.03.01 (2011-10-15)
> Driver version: 4.27.0
>
> cat /proc/mdstat
> Personalities : [raid0] [raid1] [raid10] [raid6] [raid5]
> [raid4] [linear]
> md126 : active raid1 sdc1[2] sdb1[1] sdd1[3] sda1[0]
> 1060160 blocks [4/4] [UUUU]
> bitmap: 0/130 pages [0KB], 4KB chunk
>
> md127 : active raid10 sdc2[2] sdb2[1] sda2[0] sdd2[4]
> 1951397888 blocks super 1.2 512K chunks 2
> far-copies [4/4] [UUUU]
> bitmap: 4/466 pages [16KB], 2048KB chunk
>
> unused devices: <none>
>
> mdadm --detail /dev/md127
> /dev/md127:
> Version : 1.2
> Creation Time : Mon Feb 14 07:49:55 2011
> Raid Level : raid10
> Array Size : 1951397888 (1861.00 GiB 1998.23 GB)
> Used Dev Size : 975698944 (930.50 GiB 999.12 GB)
> Raid Devices : 4
> Total Devices : 4
> Persistence : Superblock is persistent
>
> Intent Bitmap : Internal
>
> Update Time : Sat Apr 19 12:09:59 2014
> State : active
> Active Devices : 4
> Working Devices : 4
> Failed Devices : 0
> Spare Devices : 0
>
> Layout : far=2
> Chunk Size : 512K
>
> Name : gsvr:gsvr1 (local to host gsvr)
> UUID : d47afb79:e5fa9b28:ff35c586:f2602920
> Events : 29697
>
> Number Major Minor RaidDevice State
> 0 8 2 0 active sync
> /dev/sda2
> 1 8 18 1 active sync
> /dev/sdb2
> 2 8 34 2 active sync
> /dev/sdc2
> 4 8 50 3 active sync
> /dev/sdd2
>
>
> mdadm --examine /dev/sda2
> /dev/sda2:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x1
> Array UUID : d47afb79:e5fa9b28:ff35c586:f2602920
> Name : gsvr:gsvr1 (local to host gsvr)
> Creation Time : Mon Feb 14 07:49:55 2011
> Raid Level : raid10
> Raid Devices : 4
>
> Avail Dev Size : 1951399213 (930.50 GiB 999.12 GB)
> Array Size : 1951397888 (1861.00 GiB 1998.23 GB)
> Used Dev Size : 1951397888 (930.50 GiB 999.12 GB)
> Data Offset : 272 sectors
> Super Offset : 8 sectors
> Unused Space : before=192 sectors, after=1325 sectors
> State : clean
> Device UUID : b7d6b1cd:6fe152fe:398c453b:6f6ac87a
>
> Internal Bitmap : 8 sectors from superblock
> Update Time : Sat Apr 19 12:10:05 2014
> Checksum : c54765c9 - correct
> Events : 29697
>
> Layout : far=2
> Chunk Size : 512K
>
> Device Role : Active device 0
> Array State : AAAA ('A' == active, '.' == missing,
> 'R' == replacing)
>
> pvdisplay
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on pvdisplay invocation. Parent PID 5962: bash
> --- Physical volume ---
> PV Name /dev/md127
> VG Name VGD
> PV Size 1.82 TiB / not usable 30.00 MiB
> Allocatable yes
> PE Size 32.00 MiB
> Total PE 59551
> Free PE 18719
> Allocated PE 40832
> PV UUID
> m9FXrP-QuuZ-4jlY-wlW1-f9wy-za5c-9Zh7ZM
>
>
> vgdisplay
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on vgdisplay invocation. Parent PID 5962: bash
> --- Volume group ---
> VG Name VGD
> System ID
> Format lvm2
> Metadata Areas 2
> Metadata Sequence No 30
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 11
> Open LV 9
> Max PV 0
> Cur PV 1
> Act PV 1
> VG Size 1.82 TiB
> PE Size 32.00 MiB
> Total PE 59551
> Alloc PE / Size 40832 / 1.25 TiB
> Free PE / Size 18719 / 584.97 GiB
> VG UUID
> vxSnJu-tTyx-MPzK-10MU-Tkez-gigb-JwXSav
>
>
> lvdisplay
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on lvdisplay invocation. Parent PID 5962: bash
> --- Logical volume ---
> LV Path /dev/VGD/LV_ROOT
> LV Name LV_ROOT
> VG Name VGD
> LV UUID
> fWKUKN-v2I8-9hGy-mble-YIKe-Usjv-ERigkO
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 40.00 GiB
> Current LE 1280
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:0
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_SWAP
> LV Name LV_SWAP
> VG Name VGD
> LV UUID
> z6Bkzp-cNEL-EShB-eFf7-27j3-V3bH-417PYu
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 2
> LV Size 8.00 GiB
> Current LE 256
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:1
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_VAR
> LV Name LV_VAR
> VG Name VGD
> LV UUID
> Cy4N9u-gS9l-xdYa-pcYf-2aVz-FjcA-Tkf6tE
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 6.00 GiB
> Current LE 192
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:2
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_VARCACHE
> LV Name LV_VARCACHE
> VG Name VGD
> LV UUID
> WnK6tX-Wqc1-thTv-GOs1-fop6-UfrJ-mlA0Jb
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 2.00 GiB
> Current LE 64
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:3
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_USRLOCAL
> LV Name LV_USRLOCAL
> VG Name VGD
> LV UUID
> pJL0cP-V5og-vTzk-GkbV-p7ut-AQLC-egU8FF
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 150.00 GiB
> Current LE 4800
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:4
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_HOME
> LV Name LV_HOME
> VG Name VGD
> LV UUID
> gNY87k-SDU3-GUcf-sQf6-kVhA-Yh1b-v1C3T4
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 300.00 GiB
> Current LE 9600
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:5
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_DATA
> LV Name LV_DATA
> VG Name VGD
> LV UUID
> Avz6Cd-Wg2s-Ehne-A6Db-bsyp-ANIA-AO83XH
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 300.00 GiB
> Current LE 9600
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:6
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_BACKUPS
> LV Name LV_BACKUPS
> VG Name VGD
> LV UUID
> hdFydK-4twc-Ixav-w8hV-GA8K-jWrX-9P3sPp
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 1
> LV Size 400.00 GiB
> Current LE 12800
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:9
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_EXTRA1
> LV Name LV_EXTRA1
> VG Name VGD
> LV UUID
> hKC3qz-07hL-ESfw-1wWd-FVXN-nxsX-hhz6dz
> LV Write Access read/write
> LV Creation host, time gsvr.gdomain.loc, 2013-12-13
> 15:13:45 -0800
> LV Status available
> # open 1
> LV Size 20.00 GiB
> Current LE 640
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:10
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_VBOX_DATA1
> LV Name LV_VBOX_DATA1
> VG Name VGD
> LV UUID
> n0cf1s-gfyd-7ek3-SFfj-EEMC-SKdg-z0C40g
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 0
> LV Size 30.00 GiB
> Current LE 960
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:7
>
> --- Logical volume ---
> LV Path /dev/VGD/LV_VBOX_DATA2
> LV Name LV_VBOX_DATA2
> VG Name VGD
> LV UUID
> eQmtwC-M6gq-sisX-iRLT-sRqD-N3R2-QcHZXf
> LV Write Access read/write
> LV Creation host, time ,
> LV Status available
> # open 0
> LV Size 20.00 GiB
> Current LE 640
> Segments 1
> Allocation inherit
> Read ahead sectors auto
> - currently set to 8192
> Block device 253:8
>
>
> ls -al /etc/lvm/backup/VGD
> -rw------- 1 root root 4.5K Dec 13 15:13
> /etc/lvm/backup/VGD
>
> pvs -v
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on pvs invocation. Parent PID 6485: bash
> connect() failed on local socket: No such file or
> directory
> Internal cluster locking initialisation failed.
> WARNING: Falling back to local file-based locking.
> Volume Groups with the clustered attribute will be
> inaccessible.
> Scanning for physical volume names
> PV VG Fmt Attr PSize PFree DevSize PV
> UUID
> /dev/md127 VGD lvm2 a-- 1.82t 584.97g 1.82t
> m9FXrP-QuuZ-4jlY-wlW1-f9wy-za5c-9Zh7ZM
>
> vgs -v
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on vgs invocation. Parent PID 6485: bash
> connect() failed on local socket: No such file or
> directory
> Internal cluster locking initialisation failed.
> WARNING: Falling back to local file-based locking.
> Volume Groups with the clustered attribute will be
> inaccessible.
> Finding all volume groups
> Finding volume group "VGD"
> VG Attr Ext #PV #LV #SN VSize VFree VG
> UUID
> VGD wz--n- 32.00m 1 11 0 1.82t 584.97g
> vxSnJu-tTyx-MPzK-10MU-Tkez-gigb-JwXSav
>
> lvs -v
> File descriptor 5 (/run/systemd/sessions/1.ref) leaked
> on lvs invocation. Parent PID 6485: bash
> connect() failed on local socket: No such file or
> directory
> Internal cluster locking initialisation failed.
> WARNING: Falling back to local file-based locking.
> Volume Groups with the clustered attribute will be
> inaccessible.
> Finding all logical volumes
> LV VG #Seg Attr LSize Maj
> Min KMaj KMin Pool Origin Data% Meta% Move Copy%
> Log Convert LV UUID
> LV_BACKUPS VGD 1 -wi-ao--- 400.00g -1
> -1 253 9
> hdFydK-4twc-Ixav-w8hV-GA8K-jWrX-9P3sPp
> LV_DATA VGD 1 -wi-ao--- 300.00g -1
> -1 253 6
> Avz6Cd-Wg2s-Ehne-A6Db-bsyp-ANIA-AO83XH
> LV_HOME VGD 1 -wi-ao--- 300.00g -1
> -1 253 5
> gNY87k-SDU3-GUcf-sQf6-kVhA-Yh1b-v1C3T4
> LV_ROOT VGD 1 -wi-ao--- 40.00g -1
> -1 253 0
> fWKUKN-v2I8-9hGy-mble-YIKe-Usjv-ERigkO
> LV_EXTRA1 VGD 1 -wi-ao--- 20.00g -1
> -1 253 10
> hKC3qz-07hL-ESfw-1wWd-FVXN-nxsX-hhz6dz
> LV_SWAP VGD 1 -wi-ao--- 8.00g -1
> -1 253 1
> z6Bkzp-cNEL-EShB-eFf7-27j3-V3bH-417PYu
> LV_USRLOCAL VGD 1 -wi-ao--- 150.00g -1
> -1 253 4
> pJL0cP-V5og-vTzk-GkbV-p7ut-AQLC-egU8FF
> LV_VAR VGD 1 -wi-ao--- 6.00g -1
> -1 253 2
> Cy4N9u-gS9l-xdYa-pcYf-2aVz-FjcA-Tkf6tE
> LV_VARCACHE VGD 1 -wi-ao--- 2.00g -1
> -1 253 3
> WnK6tX-Wqc1-thTv-GOs1-fop6-UfrJ-mlA0Jb
> LV_VBOX_DATA1 VGD 1 -wi-a---- 30.00g -1
> -1 253 7
> n0cf1s-gfyd-7ek3-SFfj-EEMC-SKdg-z0C40g
> LV_VBOX_DATA2 VGD 1 -wi-a---- 20.00g -1
> -1 253 8
> eQmtwC-M6gq-sisX-iRLT-sRqD-N3R2-QcHZXf
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