Sistina enhances Linux global file system software

Storage management vendor Sistina Software Inc. Thursday released enhanced file system software that gives Linux server users better performance and updated volume management tools.

Dubbed Global File System (GFS) 4.1.1, the software lets multiple servers on a storage-area network share a single file system. GFS also features journaling and failover capabilities for clustered Linux servers.

Version 4.1.1's new features include patches for the Linux 2.4.5 kernel, a new I/O fencing method that now uses the APC MasterSwitch and updated initialization scripts. The APC MasterSwitch is a remote power distribution unit used to control the power to attached devices.

I/O fencing uses a method called STOMITH, which stands for 'shoot the other machine in the head.' It applies to the ability for all machines using the global file system to disable another machine if necessary so that the file system will not be corrupted.

GFS 4.1.1 is released under the GNU General Public License.

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