minfree for lvm snapshots

sahostking

Renowned Member
Hi guys

What is the best amount requirement for minfree size. Lets say I have KVM VMs with the size of :

3 kvm disks each - 100Gb(OS), 600GB(DATA) and 100Gb(DBS)
So each VM is 800GB in size.

What do you think is the right size for installer for minfree for lvm snapshots? 500GB too much?
 
We now use lvmthin, so we do not require that free space for lvmthin snapshots. I just let it there in case someone needs to make real lvm snapshots.