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21 December 2007 Heartbeat release 2.1.3 is now out Download it and install it! |
11 October 2007 NEW educational HA/DR Blog hosted by Alan Robertson |
9 April 2007 Check out the Cool Heartbeat Screencasts: Installation, Intro to the GUI Part of the Heartbeat Education project |
Last site update:
2008-07-04 17:33:52
Self-Fencing Resource
A Self-Fencing resource is one which automatically guarantees exclusive access to its resource. IBM's ServeRAID controllers, for example, are self-fencing.
Certain other resources (like a DiskReservation resource for example) can be effectively to fence other resources (like the disk they depend on), can also be considered to be self-fencing, since only one such resource can be logically started at a time.
Self-fencing resources are distinct from resources which do not require fencing at all in order to maintain their integrity.
See Also
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