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Network File System (NFS) is a distributed file system protocol originally developed by Sun Microsystems (Sun) in 1984, [1] allowing a user on a client computer to access files over a computer network much like local storage is accessed.
This makes it possible for multiple users on multiple machines to share files and storage resources. Distributed file systems differ in their performance, mutability of content, handling of concurrent writes, handling of permanent or temporary loss of nodes or storage, and their policy of storing content.
YANFS (Yet Another NFS), formerly WebNFS, is an extension to the Network File System (NFS) for allowing clients to access a file system over the internet using a simplified, firewall-friendly protocol. WebNFS was developed to give Java applets and other internet enabled applications a way of accessing filesystem services over the internet.
CacheFS is a family of software technologies designed to speed up distributed file system file access for networked computers. [citation needed] They store copies of files on secondary memory, typically a local hard disk, so that if a file is accessed again, it can be fetched locally at much higher speeds than networks typically allow.
All of the function specific to network block device servers can reside in a userspace process because the process communicates with the client via conventional sockets and accesses the storage via a conventional file system interface. The network block device client module is available on Unix-like operating systems, including Linux.
In computing, the NetWare File System (NWFS) was a file system based on a heavily optimized, journal-based FAT file system. It was used in the Novell NetWare network operating system. It was the only file system for all volumes in NetWare versions 2.x, 3.x and 4.x, and the default and only file system for the SYS: volume continuing through ...
StorNext File System (SNFS), colloquially referred to as StorNext is a shared disk file system made by Quantum Corporation. StorNext enables multiple Windows, Linux and Apple workstations to access shared block storage over a Fibre Channel network. With the StorNext file system installed, these computers can read and write to the same storage ...
Using the lockfile command (a conditional semaphore-file creator distributed in the procmail package). System calls that create a file, but fail if the file already exists. (System calls are available from languages such as C or C++, and shell scripts can make use of noclobber) Using the mkdir command and checking the exit code for failure [11]