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Network-attached Storage
Network-attached storage (NAS) is a file-level computer data storage server connected to a computer network providing data access to a Heterogeneous computing, heterogeneous group of clients. In this context, the term "NAS" can refer to both the technology and systems involved, or a specialized computer appliance device unit built for such functionality – a ''NAS appliance'' or ''NAS box''. NAS contrasts with block-level storage, block-level storage area networks (SAN). Overview A NAS device is optimised for file server, serving files either by its hardware, software, or configuration. It is often manufactured as a computer appliance a purpose-built specialized computer. NAS systems are networked appliances that contain one or more hard disk drive, storage drives, often arranged into logical disk, logical, redundant storage containers or RAID. Network-attached storage typically provide access to files using network file sharing protocols such as Network File System (protocol), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NAS Server
A network access server (NAS) is a group of components that provides remote users with a point of access to a network. Overview A NAS concentrates dial-in and dial-out user communications. An access server may have a mixture of analog and digital interfaces and support hundreds of simultaneous users. A NAS consists of a communications processor that connects asynchronous devices to a LAN or Wide area network, WAN through network and terminal emulation software. It performs both synchronous and asynchronous routing of supported protocols. The NAS is meant to act as a Gateway (telecommunications), gateway to guard access to a protected resource. This can be anything from a telephone Telecommunications network, network, to computer printer, printers, to the Internet. A Client (computing), client connects to the NAS. The NAS then connects to another resource asking whether the client's supplied credentials are valid. Based on that answer the NAS then allows or disallows access to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
