When the Snapshot option is enabled on VMware Server/GSX the Redo files may take a lot of space and might cause the VMware server to become slow.
To remove the Redo files, disable the snapshot option and clear space on the server follow the steps below:
Stop Virtual machine
Right click on the VM in the Console screen and click on remove snapshoot
Right click on the VM and click on Virtual Machine properties go to Snapshot and tick disable snapshot
Copy all redo files to a different location.
Start Virtual machine, if the Virtual machine starts and data and services are in place delete the Redo files.
If the Virtual machine fails to load, copy the Redo files back to the Virtual machine folder and start the machine again.
This solution was tested in our testing and live environment.