Hello,
Yes, it's right, you need only the space to store the changes. By
default, I think Proxmox ve 1.x installation leaved 4 GB of empty space
in volume group, but it may be insufficient if backup takes time, or if
the VM is heavily used. It seems that in PVE 2.2, Proxmox installation
leaves 16 GB :
root@proxmoxtest00:~# vgdisplay
--- Volume group ---
VG Name pve
System ID
Format lvm2
....
VG Size 297.59 GiB
PE Size 4.00 MiB
Total PE 76183
Alloc PE / Size 72088 / 281.59 GiB
Free PE / Size 4095 / 16.00 GiB
Alain
Le 14/02/2013 15:17, Mark Ehle a écrit :
I might be wrong, but I am under the impression that the spare space
only has to equal the changes that take place between the snapshot and
the filesystem while the snapshot exists.
On Thu, Feb 14, 2013 at 4:52 AM, Daniel Vuilleumier <[email protected]
<mailto:[email protected]>> wrote:
Hello
Does anybody know whether the "live snapshot" requires us to have
empty space on the logical volume group in both cases: local
backup and backup to NFS?
For example:
My LVM is 1.8TB (maximum size on HW-RAID10).
I want to live snapshot a 100GB Container.
Do I have to shrink the logical volume to 1.7TB in order to get
the snapshot done without downtime?
In Proxmox 1.9 this used to be the case, does it still apply to
2.2 (and forthcomeing 2.3)?
Regards
Daniel Vuilleumier
Zurich, Switzerland
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