Bug 607344 - Cluster Suite Overview Documentation:Cluster_Suite_Overview(EN)-5 (2010-02-05T09:51)
Summary: Cluster Suite Overview Documentation:Cluster_Suite_Overview(EN)-5 (2010-02-05...
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: Documentation-cluster
Version: 5.8
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: John Ha
QA Contact: ecs-bugs
Keywords: Documentation
Depends On:
TreeView+ depends on / blocked
Reported: 2010-06-23 20:54 UTC by Rick Brashear
Modified: 2014-08-04 22:19 UTC (History)
5 users (show)

Clone Of:
: 852720 (view as bug list)
Last Closed: 2013-04-29 14:35:35 UTC

Attachments (Terms of Use)

Description Rick Brashear 2010-06-23 20:54:55 UTC
Description of problem:
Bad sentence structure.

Version-Release number of selected component (if applicable):
Cluster_Suite_Overview(EN)-5 (2010-02-05T09:51)

On Page 5.

1.3.3. Fencing
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.

Comment 1 Jan Pokorný [poki] 2012-08-29 11:51:45 UTC
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.

[1] https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Cluster_Suite_Overview/s2-fencing-overview-CSO.html
[2] https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/High_Availability_Add-On_Overview/ch-fencing.html

Comment 2 Jan Pokorný [poki] 2012-08-29 11:57:17 UTC
Cloned for RHEL6: [bug 852720]

Comment 3 RHEL Product and Program Management 2012-08-29 12:07:36 UTC
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
a release.

Comment 5 RHEL Product and Program Management 2013-04-29 14:35:35 UTC
Product Management has reviewed and declined this request.
You may appeal this decision by reopening this request.

Note You need to log in before you can comment on or make changes to this bug.