Difference: AdministrativeSinglePrimaryCluster (6 vs. 7)

Revision 72010-10-12 - WilliamSeligman

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META TOPICPARENT	name="Computing"

Nevis particle-physics administrative cluster

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In HA terms, a "resource" means "anything you want to keep available all the time." What follows is an outline of the resources configured for our HA cluster. In this outline, an indent means that the resource depends on one above it; for example, the mail-server virtual machine won't start if NFS is not available; NFS won't start if /var/lib/nfs is not available.

Added:

>
> Most of the resources are controlled by scripts provided as part of the Pacemaker/Corosync package. The resources that begin with lsb:: (Linux standard base) are controlled by the standard scripts found in /etc/init.d/ on most Linux systems.

The entire configuration is spelled out in (excruciating?) detail on a separate Corosync configuration page.

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http://virt-manager.et.redhat.com/download.html

http://wiki.xensource.com/xenwiki/XenNetworking

Changed:

<
< http://toic.org/2008/10/06/multiple-network-interfaces-in-xen/

>
> http://toic.org/2008/10/06/multiple-network-interfaces-in-xen/
http://toic.org/2008/09/22/preventing-ip-conflicts-in-xen/

META FILEATTACHMENT	attachment="HAServersSketch.jpg" attr="h" comment="A sketch of the disk organization of the high-availability servers." date="1285871312" name="HAServersSketch.jpg" path="HAServersSketch.jpg" size="56520" user="WilliamSeligman" version="2"

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