[SOLVED] LVM Storage with qcow2 images

chriswol

Member
Jun 1, 2021
31
4
13
Hi,

I have a server with two RAID1 Sets backed by a hardware raid controller. Both Raid1 partitions are formatted as LVM (not thin). What do I have to do, if I want create VM's with qcow2 disks on that storage? Is this even possible, as the documentation states that snapshots are not supported with LVM? Do I have to "convert" the LVM storage to LVM-thin?

Code:
root@pve-io-01:~# pvs
  PV         VG   Fmt  Attr PSize    PFree 
  /dev/sda3  vg00 lvm2 a--  <216.99g <193.99g
  /dev/sdb1  hdd  lvm2 a--    <3.42t   <3.34t

Code:
root@pve-io-01:~# vgs
  VG   #PV #LV #SN Attr   VSize    VFree   
  hdd    1   5   0 wz--n-   <3.42t   <3.34t
  vg00   1   4   0 wz--n- <216.99g <193.99g

Code:
root@pve-io-01:~# lvs
  LV             VG   Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  data           hdd  -wi-ao----  4.00g                                                                                                     
  home           vg00 -wi-ao----  5.00g                                                 
  usr            vg00 -wi-ao----  5.00g                                                 
  var            vg00 -wi-ao----  5.00g

Code:
root@pve-io-01:~# cat /etc/pve/storage.cfg
dir: local
    path /var/lib/vz
    content iso,snippets,vztmpl,rootdir,images
    maxfiles 0

lvm: ssd_store
    vgname vg00
    content images,rootdir
    shared 0

lvm: hdd_store
    vgname hdd
    content images,rootdir
    shared 0

dir: templates
    path /data/templates
    content vztmpl,iso
    prune-backups keep-all=1
    shared 0


Code:
root@pve-io-01:~# lsblk
NAME                       MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                          8:0    1  223G  0 disk
├─sda1                       8:1    1    4G  0 part /
├─sda2                       8:2    1    2G  0 part [SWAP]
└─sda3                       8:3    1  217G  0 part
  ├─vg00-usr               253:3    0    5G  0 lvm  /usr
  ├─vg00-var               253:4    0    5G  0 lvm  /var
  ├─vg00-home              253:5    0    5G  0 lvm  /home
sdb                          8:16   1  3.4T  0 disk
└─sdb1                       8:17   1  3.4T  0 part
  ├─hdd-data               253:0    0    4G  0 lvm  /data
 
Last edited:

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