General Storage Products
•Direct attached storage (DAS
–DAS is directly attached to one host computer and cannot be directly and simultaneously accessed by any other clients, Such as USB and Firewire drives.
•Network attached storage(NAS):
–NAS is dedicated hard disk-based storage technology designed to be connected directly to a computer network, providing centralized data access to multiple network clients.
•Storage area networks (SAN):
–A storage area network (SAN) is an architecture to attach remote computer storage devices (such as disk arrays, tape libraries, and optical jukeboxes) to servers in such a way that the devices appear as locally attached to the operating system