Typically, to increase the stability of the system, especially with the low RAM VPS, you need to create a virtual RAM (SWAP). In VPS using VPSSIM, you can create, delete or change Swap size without any command. The “Swap manage” do not support support create swap in OpenVZ system.
How to create swap
We can create swap by using Swap Manage function.
in Swap Manage, we can create swap size as we need.
and create swap finished
We can not create swap for server 2 times
How to delete swap
If you want to change swap size, you must delete current swap before create new one.
Using Delete Swap to delete current swap.
and delete swap finished