FS-Cache on clients

[agahkarakuzu]

NFS4 (some issues on the client side, just mounted them using nfs instead of nfs4 for now)
Increased the number of parallel clients
Increased MTU from 1500 to 9000

[agahkarakuzu]

https://www.admin-magazine.com/HPC/Articles/Useful-NFS-Options-for-Tuning-and-Management#:~:text=The%20MTU%20is%20the%20maximum,server%20and%20the%20NFS%20clients.