Roger Heflin wrote:

Are you using the same dd test on the local machine test? If so cache will be a major factor.

Also, raid5 stripe size, bigger is almost always better, I would do some testing with different strip sizes and see how it affects the speed, I have never seen less than 32k be faster than 32k.

Are you using md for the raid5 setup or something else that has not been mentioned?

Roger

Roger, Yes the same dd test is being used on the local machine, however a 5G file should blow out all the caches no? If not can you explain? Cheers Todd -- Systems Administrator ---------------------------------- Soho VFX - Visual Effects Studio 99 Atlantic Avenue, Suite 303 Toronto, Ontario, M6K 3J8 (416) 516-7863 http://www.sohovfx.com ----------------------------------