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LVM

resize LVM-thin

  • pvs
  • vgs
  • lvs
  • use cfdisk to resize partition where PV is located
  • pvresize /dev/sda3
  • check with pvdisplay that new size is correct
  • lvextend -l 100%FREE pve/data or lvextend -L +20G pve/data

local-lvm on ZFS

When Proxmox cluster is used it is good to have the same storages on all nodes. It is needed for migration of LXC.

To add local-lvm storage to ZFS based node: 

# create 50GB thin volume:
zfs create -s -V 50G hddpool/lvm
 
readlink /dev/zvol/hddpool/lvm
../../zd32

By default Proxmox adds global filter rule to lvm.conf to exclude all zvol and rbd devices So add our /dev/zd32 to accept list:

/etc/lvm/lvm.conf
devices {
     # added by pve-manager to avoid scanning ZFS zvols and Ceph rbds
     global_filter=["a|/dev/zd32|","r|/dev/zd.*|","r|/dev/rbd.*|"]
}
pvcreate /dev/zvol/hddpool/lvm
 
vgcreate pve /dev/zd32
 
# Create thin pool data volume
lvcreate -l 100%FREE --type thin-pool --name data pve

And disable nodes restriction in Datacenter –> Storage –> local-lvm to have local-lvm visible on all cluster nodes.