The physical device that a server program runs on is likewise often referred to as a server in a data center. That system can be a dedicated server or it is able to be used for different purposes as well.
What are various types of servers?
Servers are often categorized in terms of their purpose and listed are few examples: Web server, application server, proxy server, mail server, virtual server, blade server, policy server and file server.
What is Directly Attached Storage (DAS)?
A hard drive which is directly connected to the computer is a direct-attached storage.
What is Network Attached Storage (NAS)?
Hard disk storage that has its own network address is called a Network-attached storage (NAS). Server Application and storage has to be separated so as to get faster in service because they will not be competing for the same processor resource. NAS device is connected to a local area network (typically, an Ethernet network) and assigned an IP address.
What is Storage Area Network (SAN)?
A high-speed network (or subnetwork) that connects different kinds of data storage devices allied with data servers on behalf of a larger network of users is storage area network (SAN). SAN network is environment of the overall network of computing resources for an enterprise. A storage area network is usually bunched in close proximity to other computing resources.