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First I would like to thank everybody who has contributed to the Postfix pages so far. I recently undertook replacing our existing mail server (which used the CentOS 4 howto at hughesjr.com) with a new machine running CentOS 5 in Xen. The machine is actually running two Xen images: mail and web server (the old machine did both functions in one install). I have done two things that go beyond

Hi!We''re trying to pinpoint our performance issues and we could use all the help to community can provide. We''re running the latest version of Nexenta on a pretty powerful machine (4x Xeon 7550, 256GB RAM, 12x 100GB Samsung SSDs for the cache, 50GB Samsung SSD for the ZIL, 10GbE on a dedicated switch, 11x pairs of 15K HDDs for the pool). We''re connecting a single Linux