Efficient use of high bandwidth network technology

Relaxing the RPC size limitation has allowed NFS to more efficiently use high bandwidth network technologies such as FDDI, 100baseT (100 Mbps) and 1000baseT (Gigabit) Ethernet, and the SP Switch, and contributes substantially to NFS performance gains in sequential read and write performance.

NFS Version 2 has an 8 KB maximum RPC size limitation, which restricts the amount of NFS data that can be transferred over the network at one time. In NFS Version 3, this limitation has been relaxed. The default read/write size is 32 KB for NFS on AIX and the maximum is 64 KB, enabling NFS to construct and transfer larger chunks of data in one RPC packet.