PRIMECLUSTER Global File Services Configuration and Administration Guide 4.1 (Linux)

1.2 Simultaneous Shared Access Maintaining Coherency

The GFS Shared File System realizes simultaneous accessing and updating from multiple nodes to a file system on a shared disk device. The GFS shared File System maintains consistency in updating from multiple nodes to files or file systems.

In this way, applications on multiple nodes can modify data mutually and read the latest data. A conventional UNIX file system API makes such operations available.

[Figure Distributed execution of file related application]