Setting refreservation=none

[MEYNIER]

HI
I encounter some isseu with my porxmox node that was 95% Full but when i add all VM size ishoudl have 50% free.
After some invesitgatiosn i found that the issue was coming from Setting refreservation .

I set so refreservation=none and get back 14Tb but i am not sure about the consequences of this settings .

Can someone try to explain the meaning of this settings ??

 

[wolfgang]

Hi,

just clearly you are taking about ZFS as storage?
If yes and you set it to none space is not guaranteed.

man zfs

reservation=size|none
       The minimum amount of space guaranteed to a dataset and its descendants.  When the amount of space used is below this
       value, the dataset is treated as if it were taking up the amount of space specified by its reservation.  Reservations
       are accounted for in the parent datasets' space used, and count against the parent datasets' quotas and reservations.

       This property can also be referred to by its shortened column name, reserv