[SOLVED] pve-zsync : out of space

[SkyZoThreaD]

Hi there !

I'm trying to copy a vm without a cluster and both the pve are zfs.

So i use :

pve-zsync sync --source 501 --dest destination.fqdn.com:rpool --verbose --maxsnap 2 --name thisvmsync --limit 512

On the source pve.

It tries... but says :

cannot create snapshot 'zfspool1/vm-101-disk-0@rep_thisvmsync_2024-09-10_10:09:33': out of space

It seems odd since i can do a manual snapshot on the source vm and i have sufficient space on the destination...
what is it laking about ?

 

[fabian]

please post the output of

zfs list -o space,reservation,refreservation -r zfspool1/vm-101-disk-0

 

[SkyZoThreaD]

Sure thing fabian

On the source pve i guess :

NAME                    AVAIL   USED  USEDSNAP  USEDDS  USEDREFRESERV  USEDCHILD  RESERV  REFRESERV
zfspool1/vm-101-disk-0  2.95T  5.94T        0B   4.03T          1.92T         0B    none      5.94T

 

[fabian]

so this zvol is "fat" (its full size is reserved up front), when you create a snapshot you need to have enough space available to allow fully overwriting the volume. you seem to not have enough space for that

 

[SkyZoThreaD]

Seems right indeed.
Tho i'm surprised i can snapshot the vm manually. Maybe it's a different kind of snapshot....
Well, i guess i'll have to use a third backup server in order to move it.
Anyway thanks to you for taking the time and the whole staff for this very nice software so pleasing to use ♥