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What is Virtual Server?

Server virtualization has been a real "game-changer" for the data center and those who administer and manage it. It has provided us with efficiency at a time when we so desperately need it. Unfortunately, there are so few companies that are 100 percent virtualized.

Benefits of Virtual server:

1. Server consolidation
By collapsing physical servers into Virtual Server and reducing the number of physical servers, your company will reap tremendous savings in power and cooling costs. Additionally, you'll be able to reduce the data center footprint which can include diesel generator costs, UPS costs, network switch costs, rack space, and floor space.

2. Stop server sprawl
Before server virtualization, admins were forced to over-provision servers to ensure that they would meet user demand. With server virtualization, there is no more over-provisioning and you'll be able to perfectly size every virtual machine.

3. Do more with less
With a lagging economy, IT departments and admins are forced to do more with less. Server virtualization makes admins more efficient and agile, allowing us to do more with less and look like the heroes of the IT department.

4. Cost savings
Not only will your company save on the physical server hardware, power and cooling of the servers that were consolidated, you'll also save on the time it used to take to administer physical servers. End users will be more productive thanks to less downtime and much more.

5. Moving running virtual machines
Truly one of the more powerful features of server virtualization is the ability to move a running virtual machine from one host to another with no downtime. VMware's vMotion can do this for you and that feature makes other features like distributed resource scheduler (DRS) and distributed power management (DPM) possible.

6. Increased uptime
Features like vMotion, storage vMotion (svMotion), DRS, and VMware high availability (VMHA) all result in virtualized servers being up and running so much more than those same servers that were running directly on physical hardware.

7. Image-based backup and restore
By being able to back up and restore entire virtual machines, you can much more quickly back up the VMs and put them back, if needed. Additionally, image-level backups make disaster recovery so much easier. Even more, only changed blocks need to be backed up and backups can be done in the middle of the day thanks to snapshot technology.

8. Virtual labs
By being able to create a virtual lab (a group of VMs on a private virtual network), you can test vSphere, Exchange, Active Directory, and much more. Previously, this would have been cost-prohibitive with physical servers.

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