A san typically is a dedicated network of storage devices not accessible through the local area network (lan). Although a san provides only block-level access, file systems built on top of sans do provide. A san eliminates single points of failure to enhance storage reliability and availability.
A san is also optimal for disaster recovery (dr) because a network might include many storage devices, including. A san and network-attached storage (nas) are both network-based storage solutions; However, a san is more complex.
A san is a network that operates independently of an organization's operating. A storage area network (san) is a specialized, high-speed network that provides network access to storage devices.