Providing Open Source High-Availability Software for Linux and other OSes since 1999.

This web page is no longer maintained. Information presented here exists only to avoid breaking historical links.
The Project stays maintained, and lives on: see the Linux-HA Reference Documentation.

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Heartbeat 3.0

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1 February 2010 Hearbeat 3.0.2 released see the Release Notes

18 January 2009 Pacemaker 1.0.7 released see the Release Notes

16 November 2009 LINBIT new Heartbeat Steward see the Announcement

Last site update:
2010-03-16 04:49:18

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Resource Fencing

ResourceFencing is fencing at resource granularity. It ensures exclusive access to a given resource. Common techniques for this include changing the zoning of the node from a SAN fiber channel switch (locking the node out of access to its disks) and things like SCSI reserve. Resource fencing is implemented differently depending on the type of resource and how access to it is granted, and hence can be denied.

Compared to NodeFencing, where we prevent a failed node from accessing shared resources entirely, it has finer granularity, alas not all resources support this functionality, or it might have some limitations that keep it from being useful in a particular situation.

Resource Fencing

See Also