Network-Attached storage

Network-Attached storage (NAS) is a type of dedicated file storage device that provides local Area Network (LAN) nodes with file-based shared storage on a standard Ethernet connection.
NAS devices, which do not normally have a keyboard or display, are configured and managed with a browser-based utility. Each NAS resides on the LAN as a separate network node and has its own IP address.
A major advantage of NAS is its ability to provide multiple clients over the network with access to the same files. Prior to NAS, companies typically had hundreds or even thousands of discrete file servers that had to be configured and maintained separately. Today, when more storage capacity is needed, NAS devices can simply be equipped with larger disks or clusters to provide scaling and scaling. Many NAS vendors work with cloud storage providers to provide customers with an additional level of redundancy for file backup.