It is defined as a special dedicated data storage server, including storage devices and embedded system software, which can provide cross-platform file sharing capabilities.
Direct Attached Storage (DAS)
It refers to directly connecting a storage device to a server through a SCSI interface for use.
Network Attached Storage (NAS)
NAS is actually a storage device with a thin server, and a thin server is actually a network file server.
Storage Area Network (SAN)
A SAN is actually a dedicated network built for storage that is independent of the TCP / IP network.
The ordinary TCP / IP network is used to transmit the SCSI data blocks that were originally transmitted by the storage area network.
NAS network storage
Connect storage devices to a group of computers through a standard network topology, such as Ethernet.
Maximum storage capacity
It refers to the limit of the data capacity that a NAS storage device can store. Generally speaking, the maximum number of hard disks that a NAS device can support multiplied by the capacity of a single hard disk is the maximum storage capacity.