adam-s@pacbell.net writes:
By the way, do most people using NFS use TCP instead of UDP because there is more to tune/tweak with TCP? I am trying to get this to become an Oracle backend, but copies currently average 1MB/sec and this is on an 800MB trunk.
I assume by `800MB trunk' you mean a quad 100bT trunked at full duplex?
Just a point to consider; you will not get more than 100Mb/s in any one direction between any two clients. I.e, the maximum you generally can get between any two clients connected via a trunk is the bandwidth of the individual elements that make up the trunk.
(On a side note, I also find it partially dishonest that switch vendors advertise their ports as 100bT or 1000-SX, and then claim they have a 800Mb trunk (4 x 100bT full duplex) or 4Gb trunk (2 x 1000-SX)).
I believe this is a limitation of all the current trunking technologies (at least, the one that Sun, Cisco, NetApp, and 3Com use for 100bT in any case).
IMHO, if the filer is to be primarily used as a backend for one large ORACLE box, and you need bandwidth between them, put gigabit NICs in at each end. You could even just cross-over the fibre cable for a point-point connection if you didn't need gigabit between anything else at the start (and use the 100bT onboard to talk to the other clients).
Luke.