Configuration optimized server performance

Always a lot of troubles when you purchase a server chose.
 To a properly configured server and pay the high cost to purchase you'll join, you will have the questions.
Unconditional, to pay the expensive server is introduced, trouble-free performance but unnecessary waste of money and so forth. Upside were too cheap to buy the PC and insufficient performance for easy upgrades, but the do not. And failure, even men and women even more problematic agent.

 If you are selling inexpensive hosting companies often
 Usually a single web hosting performance as the older PC if there is no problem. Visitor to tens of days, but data is not large, because most

 Typically talk about the performance of your PC when CPU is unconditionally good, Server bother, but does not. Handling process usually because the data from the PC and Server PC required to send and receive.

 Now, in conclusion, I'll go.
 The performance of the server configuration depends on the purpose.
 Typically, a file server, Web server, SQL server, mail server, and so chose to use a lot.
 Depending on the purpose, regardless of the OS or Application. Is similar, because

File server, web server,
- Performance almost does not matter.
CPU: Dual-core level or above
- RAM: 1GB suffice.
  More if you use a bulletin board with zero board or SQL (the case of a Web server, 2GB degree may be required.)
HDD: Required as much. Only if the data is important, because the mirroring configuration.

Mail server
Persistent connections, and therefore is dependent on the number of users. (See below 50user below)
- CPU: dual-core level or above.
- RAM: linux Exchange of more than 2GB, 8GB or higher required
- HDD: HDD 2ea more than mirroring.

SQL server
- Require the most performance.
- CPU: quad-core level or above. 2CPU longer.
- RAM: linux more than 4GB.
- HDD: OS 2ea mirrored area.
             DATA area 4ea RAID-5.

Common
2WAU server CPU for easy upgrades in the future, so one
- RAM also facilitate capacity expansion applies only to the base.
HDD's very difficult because optimal future configuration changes to the state configuration.
 (A lot of performance, if necessary, start with a basic 6 at least four or more RAID-5)