Hi, malahal us ibm com wrote:
Yes, it's still there (well /etc/lvm/archive/). So how do I back out of this after I've already run removemissing? If I try and restore the old vg backup it just tells me that it can't restore it because the uuid is missing for md1.Colin Faber [cfaber gmail com] wrote:was unavailable. After searching around I kept coming back to suggestions stating that removal of the missing device from the volume group was the solution to getting thing back online again. So using 'vgreduce --removemissing raid' then 'lvchange -ay raid' to update the changes - Neither command errored and vgreduce noted that 'raid' was not available again.Since your LV (array) is most likely allocated on md1 that disappeared, you really want --partial (lvm command) rather than --removemissing. Your metadata is updated and any knowledge about 'array' LV is now almost gone due to the above 'vgreduce'. I say almost gone because it might be there but you really need true LVM expertise now! Did you save a copy of your old LVM metadata before the reboot? See your /etc/lvm/backup/raid has any reference to 'array' LV at all.
By the way, thank you very much for the response. Any suggestions and help are greatly welcome.
-cf
--Malahal.So as it stands now I have no logical volume, I have a volume group and I have a functional md0 array. If I dump the first 50 or so megs of the md0 raid array I can see the volume group information, as well as the lv information including various bits of file system information.At this point I'm wondering can I recover the logical volume and recover this 1.8TB of data.For completeness here is the results of various display and scan commands: root Aria:/dev/disk/by-id# pvscan PV /dev/md0 VG raid lvm2 [1.82 TB / 1.82 TB free] Total: 1 [1.82 TB] / in use: 1 [1.82 TB] / in no VG: 0 [0 ] root Aria:/dev/disk/by-id# pvdisplay --- Physical volume --- PV Name /dev/md0 VG Name raid PV Size 1.82 TB / not usable 2.25 MB Allocatable yes PE Size (KByte) 4096 Total PE 476933 Free PE 476933 Allocated PE 0 PV UUID oI1oXp-NOSk-BJn0-ncEN-HaZr-NwSn-P9De9b root Aria:/dev/disk/by-id# vgscan Reading all physical volumes. This may take a while... Found volume group "raid" using metadata type lvm2 root Aria:/dev/disk/by-id# vgdisplay --- Volume group --- VG Name raid System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 11 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 1.82 TB PE Size 4.00 MB Total PE 476933 Alloc PE / Size 0 / 0 Free PE / Size 476933 / 1.82 TB VG UUID quRohP-EcsI-iheW-lbU5-rBjO-TnqS-JbjmZA root Aria:/dev/disk/by-id# lvscan root Aria:/dev/disk/by-id# root Aria:/dev/disk/by-id# lvdisplay root Aria:/dev/disk/by-id# Thank you. -cf _______________________________________________ linux-lvm mailing list linux-lvm redhat com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/_______________________________________________ linux-lvm mailing list linux-lvm redhat com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/