Difference of RAM and SWAP (OpenVZ and KVM Container)?

[zonesoft]

Hi,

we start to evaluate Proxmox on one of our Root Server with the Goal to migrate all Servers with many OpenVZ Container on it to a Proxmox Cluster.

Now i'm wounder about the difference between "RAM" and "SWAP" of a Container? Mean Swap a real swap Partition or something?
Or is RAM the guaranteed Ram and Swap the "dynamic" that may can be used if free on Host System?

For Example: Mean 512MB Ram and 256MB Swap that the VM has 512MB Ram and can allocate (dynamic, for a short time) additional 256MB?


Hope anyone can help me out ;-)

 

[conrad]

You're right, its just swapable virtual memory.
I does not have to be for a short time, but you can allow
a container to use more memory if available.

 

[zonesoft]

Thank you