PRIMECLUSTER Global File Services Configuration and Administration Guide 4.2 (Solaris(TM) Operating Environment)

1.1 Types of GFS File System

The GFS has two types of file system, the GFS Local File System and the GFS Shared File System.

The GFS Local File System is for local file system in a node, or switchover file system among two or more nodes. The GFS Shared File System can be shared from multiple nodes simultaneously. The most appropriate file system can be chosen depending on the application and the purpose.

The GFS Local File System is the local file system that features high-performance file access with contiguous block allocation of the file data, as well as a high-speed consistency recovery function after a system down, which is effective for high-speed file system switchover.

The GFS Shared File System is a shared file system that features simultaneous accessibility that maintains consistency between multiple Solaris OE to which a shared disk device is connected and enables the continuation of processing on another node even if a certain node fails.