Red Hat Bugzilla – Bug 607344
Cluster Suite Overview Documentation:Cluster_Suite_Overview(EN)-5 (2010-02-05T09:51)
Last modified: 2014-08-04 18:19:03 EDT
Description of problem:
Bad sentence structure.
Version-Release number of selected component (if applicable):
On Page 5.
Fencing is the disconnection of a node from the cluster's shared storage. Fencing cuts off I/O from
shared storage, thus ensuring data integrity. The cluster infrastructure performs fencing through the
fence daemon, fenced.
When CMAN determines that a node has failed, it communicates to other cluster-infrastructure
components that the node has failed. fenced, when notified of the failure, fences the failed node.
Other cluster-infrastructure components determine what actions to take — that is, they perform any recovery that needs to done.
For example, DLM and GFS, when notified of a node failure, suspend
activity until they detect that fenced has completed fencing the failed node. Upon confirmation that
the failed node is fenced, DLM and GFS perform recovery. DLM releases locks of the failed node;
GFS recovers the journal of the failed node.
Admittedly, "Red Hat Cluster Suite" product in Bugzilla is tempting,
but no longer in use (no longer having a standalone position).
Rick, thanks for your feedback; this issue is still valid [1,2].
As per the indicated version, flipping to RHEL 5 -- Documentation-cluster
and cloning also for RHEL6.
Cloned for RHEL6: [bug 852720]
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux release. Product Management has
requested further review of this request by Red Hat Engineering, for
potential inclusion in a Red Hat Enterprise Linux release for currently
deployed products. This request is not yet committed for inclusion in
Product Management has reviewed and declined this request.
You may appeal this decision by reopening this request.