Global File SystemAbbreviated as GFS, a Global File System is a cluster file system that enables a cluster of computers to simultaneously use a block device that is shared between them. GFS reads and writes to the block device like a local file system, but also allows the computers to coordinate their I/O to maintain file system consistency. With GFS any changes that are made to the file system on one computer will immediately be seen on all other computers in that cluster.
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