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How to spreading load across various physical servers?

Discussion in 'Plesk for Linux - 8.x and Older' started by panizzon, Nov 18, 2007.

  1. panizzon

    panizzon Guest

    Hello all

    From my experience of hosting mail and webservers it's advisable to spread those functions across many servers.

    => Web and SQL on one server.
    SQL can create quite a bit of I/O, while PHP can create some CPU load. But for low latency SQL and Web should be on the same physical machine.

    => Mail
    Mail with say 10'000 users is very very I/O Intensive and needs an own phyical server with no other tasks to reach some acceptable performance.

    => Spamfiltering
    SpamAssassin (especialy when you use OCR Modules to do text recognition in picture attachements) and ClamAv are quite CPU intensive and should be put on a separate server. (quite easy if you use MIMEDefang with Sendmail or the latest postfix).

    Can such a setup be achieved using plesk?
    Preferably with shared storage so that one service could failover from one physical machine to the other in case of hardware failure?