Backup size - 500GB, CT size - 197 GB

[v0v3k]

Hello everyone.
I have a CT with size of bootdisk - 320GB (197 is being used)
I made a backup with proxmox backup server and i saw that on PBS size of backup was 500GB
How is it possible?
Maybe i don't understand something

 

[oguz]

hi,

do you have more mountpoints attached to the container that might be getting backuped as well?

what is your container configuration: pct config CTID

 

[v0v3k]

hi,

do you have more mountpoints attached to the container that might be getting backuped as well?

what is your container configuration: pct config CTID

Thank you for the answer
I thought about it, but I dont have attached mp

 

[oguz]

you have nfs share mounted inside the container?
maybe that was included in the archive.

 

[v0v3k]

you have nfs share mounted inside the container?
maybe that was included in the archive.

Yes, i have mounted share, but size of files inside this share is only about 3 GB

 

[oguz]

if you take a regular backup with vzdump (via PVE GUI, selecting something other than PBS) how big is the resulting archive?

 

[v0v3k]

if you take a regular backup with vzdump (via PVE GUI, selecting something other than PBS) how big is the resulting archive?

I will check it
Thanks

 

[dcsapak]

there are two things that come to mind what could have happened here:
* the ct is on zfs and the compression reduces the actual usage, but is counted in the pbs listing
* the ct contains some big sparse files, which do not take up real space, but are also counted in full in pbs

 

[v0v3k]

there are two things that come to mind what could have happened here:
* the ct is on zfs and the compression reduces the actual usage, but is counted in the pbs listing
* the ct contains some big sparse files, which do not take up real space, but are also counted in full in pbs

Looks like the second one is true
Also after restore it has the same size as before backup
Thank you