Disk size is bigger than total size of all VMs

[martin5]

There are few active and few unactive VMs.
I increased disk size of one active VM.
My hard disk is about 1TB but total size of all VMs is bigger than 1TB.
Total size of all active VMs is less than 1TB. I don't think it is good.
But how it could happen? What will be with data on all VMs?

 

[oguz]

hi,

what sort of storage are you using?

if you're using LVM-Thin or ZFS, then it's usually fine, because these disks are thin-allocated [0]
as long as you don't use up all the available space, you can allocate it.

just make sure that the actual empty space on the storage doesn't reach zero

[0]: https://pve.proxmox.com/wiki/Storage#_thin_provisioning