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I'm currently running on a dual xeon, scsi drives, 8gigs of ram. Considering upgrading if it's not too expensive. (I don't need to upgrade, I wanna upgrade :). Server is running fine now).
A couple of AMD processors? Bus speed? I'm told that Intel solid state drives can make a huge difference in speeding things up.
Furthermore it is very difficult to compare some figures between server configurations. For example:
Therefore it makes a huge difference if people offer you 8GB as 2x4GB DDR2, or as 4x2GB fully buffered ECC DDR3 memory.
I am not a fan of AMD processors. I have always had lockups (about once a month) on both CentOS and FreeBSD with the default kernel configurations where I didn't have those problems with Intel processors.
I am currently building a low/medium end server for colocation which will go in production in about one month. Although it is an A-brand, it is one of the cheapest models. Goals are random access memory performance combined with large storage. Fast random access to the storage is not needed. It consists of:
I expect the total costs of this configuration to be somewhere around $2200
a dual xeon, scsi drives, 8gigs of ram.
I'm running quite a few websites on a server with less than this and dont get any performance issues.
Though it did get a performance boost when I first set it up just by disabling background tasks that were never required.
I do recemmend a really decent network card, this will reduce CPU usage and help the server to cope better with attacks.
I don't remember the AMD processor models in the FreeBSD systems I used in the past.
Because FreeBSD is fully source built it was more difficult to go back to the previous OS version. I also at that point decided to stop further development on FreeBSD and work exclusively on Linux so I just abandoned those machines.