Colin Faber [cfaber@gmail.com] wrote: > Hi, > > malahal@us.ibm.com wrote: >> 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. >> > 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. > > By the way, thank you very much for the response. Any suggestions and help > are greatly welcome. Isn't there a force option to vgcfgrestore? There maybe an easier way, but I have not done much of LVM administration. Looking at the end of 'vgcfgrestore', you can create a PV that will have the same uuid and size as your failed md1 using 'pvcreate ...'. I would say, create a sparse file and use losetup to create a block device against it. Then use 'pvcreate' to create an identical device with md1's uuid. After that, use vgcfgrestore. Thanks, Malahal. PS: Try posting to dm-devel (they may suggest an easier method) _______________________________________________ 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/
