I have a virtual machine running on LVM. Its working ok except that now I can't expand or create any logical volumes. It gives me the error:
# lvcreate -L10G -n test LocalVG Insufficient free space: 320 extents needed, but only 0 available
But I have much more than that available to the volume group:
# vgdisplay LocalVG --- Volume group --- VG Name LocalVG System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 13 VG Access read/write VG Status resizable MAX LV 0 Cur LV 9 Open LV 9 Max PV 0 Cur PV 1 Act PV 1 VG Size 299.84 GB PE Size 32.00 MB Total PE 9595 Alloc PE / Size 6656 / 208.00 GB Free PE / Size 2939 / 91.84 GB
And the cow image on which this vm is residing is 300MB and is on a filesystem on the host that currently has 101GB free. So it shouldn't be failing. I did notice that the physical volume that the VG uses in the VM is set to unallocatable:
# pvdisplay --- Physical volume --- PV Name /dev/vda2 VG Name LocalVG PV Size 299.85 GB / not usable 6.83 MB Allocatable NO PE Size (KByte) 32768 Total PE 9595 Free PE 2939 Allocated PE 6656
Maybe this is normal, but my other hosts show their PVs set allocateable = yes. So my questions are, should I be running "pvchange -x y /dev/vda2" on this PV or is there something else wrong? Can the host be online when I do this? Does the PV have to be allocatable in order for an LV to get extents from a VG?