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Advice To Optimize Hypervm Vps Servers

Having a VPS server sometimes is a pain: running OpenVZ on a master server, with some VPS, you will oftenly experience some slowdowns, caused by the physical processor overload.

User complaints? In this article we'll try to explain how to optimize your OpenVZ VPS boxes, taking the most power of a budget dual core processor.

First, you must be concerned that a VPS server is a hardware server, splitted into several virtual servers. In general ways, as you have a dual core 2.0gigahertz main cpu and 10 virtual boxes, you will have 2x2ghz divided by 10, that results in 0.4ghz per virtual server. Each VPS has a processor share of the main hardware processor. Not always all virtual servers will use all of its cpu limit, but you should keep a reasonable limit for processing, so that one virtual server never run out of its limits.

Keep in mind that a simple virtual server may demand lots of cpu, and if it's not correctly limited, it may cause general slowdowns.

Another tip is to limit only one core for each virtual box. Remember that OpenVZ is a good software, but it's not 100% accurate. Limiting a core for each VPS box will protect your main server from not good surprieses. If your main processor have over two cores, you can delegate two cores for each VPS server.

If you don't run a specific job, if you know what you are executing, you can delegate more cores to each VPS. These tips will help you in usual ways, where you don't know what your customers are running inside their boxes.

A third and helpful tip is always try to run a failsafe disk array setup. As you run some servers, your disks will ask for lots of seeks, and this will shorten their lifetime. You should try to run at least one mirror RAID setup. In order to gain some performance, a RAID-10 would be nice.

The last tip is to never put away the backups. Keep a slave disk, or a slave file server where you can put your backups into.

By: Roberto Bell

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