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Last site update:
2008-08-28 01:08:53
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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