Today we’re taking a look at VSANs, and why they may important to your IT organization. What exactly is a VSAN? A VSAN, or virtual storage area network, gives you the ability to segregate traffic on a single device. That means you can essentially have four ports of one switch that communicate with one VSAN or network, while four ports are communicating on an entirely different network, set of devices, and storage arrays.
Why VSANs could be Important to Your Business:
• Traffic Segregation: You would not have to buy two different sets of equipment in order to get the functionality to segregate traffic and have two separate networks available one a single device.
• Scalability: Using multiple VSANs can make the configuration of you system easier. You can add or relocate subscribers without having to change the physical layout of your system.
• Minimum Disruption: If an issue occurs in one VSAN, the issue can be handled with very little disruption to the rest of your network.
• Security: The independence of VSANs helps to minimize the vulnerability of your system thereby increasing security.
• Minimized Risk of Data Loss: Data redundancy is a possibility with VSANs which minimizes the risk of catastrophic data loss within your organization
Segregating Critical Systems from Non-Critical Systems
The CFO of your company is probably looking more into dollars and cents rather than the underlying technology. So, you may have to answer the question of why your organization would need a VSAN. Essentially, a VSAN gives your organization the ability to segregate critical systems from non-critical systems.
For example, if you have a group of exchange servers that are supporting 50,000 users across the nation, you would want to segregate that traffic or I/O from an environment that is just hosting a cloud offering. In this example, you have production data that is very critical because it is hosting email services for the entire organization where the other environment is not as critical. So,what do you do?
One option is purchasing fibre channel switches, but this can start to get expensive quickly. The other option is to take advantage of VSANs that will give you the ability to have two different storage area networks residing on the same switch. This will make the overall investment significantly less than going the fibre channel switch route.