NAS
Network attach storage, there are two protocol NFS(Linux) and CIFS(windows)
NFS
1.use UDP or TCP
2.modify rsize and wsize
3.use sync or async
CIFS
1.smb or smb2
2.modify rsize and wsize
3.prefetch
Tools
Watch the memory,disk I/O and net speed.
1.vmstat
2.cat /proc/cpuinfo, /proc/meminfo, /proc/net/dev