I have migrated my witness node to a server with 32gb RAM and 8 cores CPU for faster replaying, the estimated size of the Steem Blockchain has also increased significantly (over 75Gb) so I have decided to get a 500 gb SD server.
The current use of RAM of a Steem node running on Low Memory Mode is 25gb, the good thing is that this new supplier allows me to add more RAM as I need it, so I will be adding 32gb more RAM soon to have a total of 64gb.
If you wish to read the projects I support and what I do as a witness, you can read my witness page here
Special thanks to 
Thanks you for reading and feel free to reach me on steemit or steemit.chat
You can vote for me on the witness menu or by typing this on the cli_wallet:
vote_for_witness youraccount chitty true true