The servers that are being manufactured today typically contain 4 or more processors and are capable of handling 100′s of GB’s of memory. With this type of power, running a single operating system with a single application does not put much of a load on the server. So, consequential the server would spend most of it’s time idling.
We recommend that you look at virtualization technology to use the resources of the server more effectively. Server virtualization allows for more than one server to operate on the same piece of hardware.
Advantages of virtualization:
- Reduce power consumption by 50-80%
- Reduce number of physical servers use/needed
- Reduce support and maintenance costs
- Enhance reliability, security and protection
- Increase Performance
- Offers cost effective disaster recover
- Better use of server’s resources
- Reduce IT capital expenditures by sharing resources
- Reduce cooling and real estate costs.
- Minimize lost revenue or productivity due to downtime
- Recover from disasters rapidly
- Ensure reliable disaster recovery
- Automate disaster recovery using fail over technique
- Takes full advantage of the server’s performance.
- Less power backup resources required
- Safer, faster backups and restore
- Simplified IT Management from a remote location
- Future upgrades are significantly less complicated which results in lower cost, less downtime and less risk
- Ability to quickly set up a test environment and try an application upgrade prior to applying it to production data
I recommend two server virtualizations products, Microsoft Hyper-V and VMWare.
Microsoft Hyper-V is free virtualization that comes with Microsoft 2008r2 server. It is
is a good solution in a all Microsoft server enviroment especially where there is a limited budget. For more details go to: Microsoft Hyper-V Virtualization
VMware is a more robust solution. It is based on a Linux kernal and allow you to virtualize other operations system other than Microsoft, such as Novell and Linux.
It is a more mature product with many advance features. It is the product used in most enterprise enviroments for server virtualization. For more details go to: Compare VMware to Hyper-V Virtualization