Diskless shared-root cluster: Difference between revisions

Revision as of 06:32, 2 February 2007

Revision as of 18:22, 24 February 2007

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A '''Diskless Shared-root Cluster''' is a platform for [[High Availability]] Infrastructures.

A Linux cluster filesystem, e.g. [[Global File System|GFS]] or [[OCFS2]], is the basis to form a [[Single System Image]] ([[SSI]]) on filesystem level with any attached [[Storage Area Network]] ([[SAN]]).

The architecture of a [[diskless]] [[computer cluster]] makes it possible to separate servers and storage array. The operating system as well as the actual reference data (userfiles, databases or websites) are stored competitively on the attached storage system in a centralized manner. Any server that acts as a cluster node can be easily exchanged by demand.

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The additional abstraction layer between storage system and computing power eases the scale out of the infrastructure. Most notably the storage capacity, the computing power and the network bandwidth can be scaled independent from one another.

A similar technology can be found in the [[TruCluster]] ([[Tru64]]-UNIX) in the [[UNIXUnix]] sector.

The [[open-source]] implementation of a Diskless Shared-root Cluster is known as [[Open-Sharedroot]].

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* Kenneth W. Preslan: [http://www.redhat.com/docs/manuals/csgfs/admin-guide/] ''Red Hat GFS 6.1 – Administrator’s Guide''

== WeblinksExternal links ==

* http://www.open-sharedroot.org/ - The homepage of Open-Sharedroot

* http://sourceforge.net/projects/open-sharedroot/ - The project page of Open-Sharedroot

* http://w3.biff.ch/node/465/ - Tutorial how to implement Open-Sharedroot

[[Category:Cluster computing]]

[[Category:Parallel computing]]

[[Category:Local area networks]]

{{DEFAULTSORT:Diskless Shared Root Cluster}}

[[Category:Cluster computing|Cluster, Diskless Shared Root]]

[[Category:Parallel computing|Cluster, Diskless Shared Root]]

[[Category:Local area networks|Cluster, Diskless Shared Root]]