file locking mechanism

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• File locking — is a mechanism that enforces access to a computer file by only one user or process at any specific time. The purpose of locking is to prevent the classic interceding update scenario. The interceding update problem may be illustrated as in the… …   Wikipedia

• File system — For library and office filing systems, see Library classification. Further information: Filing cabinet A file system (or filesystem) is a means to organize data expected to be retained after a program terminates by providing procedures to store,… …   Wikipedia

• Opportunistic Locking — In the SMB protocol, Opportunistic Locking (also referred to as OpLocks) is a file locking mechanism designed to improve performance by controlling caching of files on the client. Contrary to traditional locking, OpLocks are not used in order to… …   Wikipedia

• Shared disk file system — A shared disk file system, also known as clustered file system or SAN file system, is an enterprise storage file system which can be shared (concurrently accessed for reading and writing) by multiple computers. Such devices are usually clustered… …   Wikipedia

• Andrew File System — The Andrew File System (AFS) is a distributed networked file system which uses a set of trusted servers to present a homogeneous, location transparent file name space to all the client workstations. It was developed by Carnegie Mellon University… …   Wikipedia

• Direct Access File System — DAFS redirects here. For other uses, see DAFS (disambiguation). Direct Access File System (DAFS) is a network file system that is based on NFSv4 and the Virtual Interface (VI) data transfer mechanism. DAFS uses remote direct memory access (RDMA)… …   Wikipedia

• Mode-locking — is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s). The basis of the technique is to induce a fixed phase… …   Wikipedia

• Server Message Block — In computer networking, Server Message Block (SMB), also known as Common Internet File System (CIFS, /ˈsɪfs …   Wikipedia

• Apache Subversion — Subversion Developer(s) Apache Software Foundation Initial release October 20, 2000 (2000 10 20) …   Wikipedia

• FN MAG — For the hoax, see KSP 58. MAG FN MAG GPMG in an exhibition at Yad la Shiryon Museum, Latrun, Israel. Type General purpose machine …   Wikipedia

• Transaction Processing Facility — Infobox OS name = z/TPF caption = developer = IBM source model = Closed source (Source code is available to licenced users with restrictions) kernel type = Real time supported platforms = ? ui = ? family = z/TPF released = latest release version …   Wikipedia