METHOD FOR FIRST OUTPUTTING SHARED DATA USING GLOBAL LOCK PATTERN ON SHARED FILE SYSTEM

摘要

PURPOSE: A method for first outputting shared data using a global lock pattern on a shared file system is provided to reduce a process delay time of a file system by previously reading and offering the shared data from a memory of other host or a disk of the shared file system when the global lock for reading and writing the shared data is requested from the host. CONSTITUTION: The shared file system of the host requests the global lock for the shared data through a global lock manager. The global lock manager finds out a block allotting the shared data requested from the host by receiving the global lock request. The global lock manager increases a count for the allotted block of the shared data requested by the host one by one. The global lock manager reads the shared data from the memory or the disk of the host having the allotted block of the shared data. The shared data is transmitted to the host.