Primal Cortex’s Weblog

Amnesia sets in…

Hardware sizing made simpler

Posted by primalcortex on January 24, 2008

Suppose that you need to provide some hardware specifications for some web-servers.

Also suppose that the number of users are bigger than 300/500 users, how do you size the hardware if the software provider or you don’t know what might the load be?

Easy:

If a machine has 2 dual core CPU’s in reality it has 4… so you can save on 4/8 way chassi.

RAM, bigger than 3GB needs a 64 bit OS, and Application server, so take notice on that.

Number of machines? One or two is a bad idea. In the first case if it fails you have nothing, on the second case, one of the machines gets 100% of the load.. So three machines in a load balancing cluster is better…

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