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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

    0
     
    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?

    -Benoit-
     
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