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Showing posts from July 17, 2011

LVM: How to remove a volume using pvremove

First, I encountered this error "Can't pvremove physical volume "/dev/sdc1" of volume group "nova-volumes" without -ff" (I'm actually using OpenStack but it's another story). So to remove this, do first, ~# pvscan   PV /dev/sdb1   VG nova-volumes    lvm2 [1.82 TiB / 1.82 TiB free]   PV /dev/sda5   VG cloudmaster     lvm2 [297.85 GiB / 12.00 MiB free]   PV /dev/sdc1                      lvm2 [1.82 TiB]   Total: 3 [3.93 TiB] / in use: 2 [2.11 TiB] / in no VG: 1 [1.82 TiB] Then, when I do, ~# pvremove /dev/sdc1  Can't pvremove physical volume "/dev/sdc1" of volume group "nova-volumes" without -ff So I need to, ~# vgreduce nova-volumes /dev/sdc1   Removed "/dev/sdc1" from volume group "nova-volumes" Then do `pvscan` again, ~# pvscan   PV /dev/sdb1   VG nova-volumes    lvm2 [1.82 TiB / 1.82 TiB free]   PV /dev/sda5   VG clou...