|The reason the results are likely so sparse is because the two modes of operation (single machine and cluster) are so similar.|
Once you've setup a cluster and installed the lvm2-cluster rpm*, new volume groups that are created automatically receive the "clustered" attribute. [Toggle the cluster attribute by doing vgchange -c[ny] <vg>] The lvm commands stay the same as if you were running them on a single machine.**
* Of course you could compile the sources or use another install method.
** Some targets (like snapshots) are not available when using LVM in a clustered mode.
On Feb 7, 2008, at 8:38 AM, Gerrard Geldenhuis wrote:
I am after a bit more documentation about the usage of the --clustered option in vgcreate. At the moment I don’t have a spare san drive with which I can experiment. My understanding is that you would set this flag when different hosts(nodes) connect to the same storage area typically a san with lvm configured. I am after a bit more information describing this “clusterering” functionality in lvm and how/where it is used. The man pages on lvm and commands is a bit sparse and I am trawling through google results but not with great success at the moment.
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read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/