Red Hat CLUSTER SUITE - CONFIGURING AND MANAGING A CLUSTER 2006 Manuel d'utilisateur télécharger pdf (Page 23)

Piranha Architecture

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Appears as one mega-machine to clients: SSI at the IP level

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One or two nodes acting as IPVS directors

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Stand-alone cluster: Not dependent on CMAN, GULM, etc.

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IPVS routing table is replicated between the primary and backup directors for

hot-standby operation

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No dependencies on shared storage (no shared data to protect)

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Real servers can use GFS, NFS, or manual replication (using rsync, for

example)for static content

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Provides high availability for applications via redundant Real Servers and

(optionally) a redundant director

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Red Hat CLUSTER SUITE - CONFIGURING AND MANAGING A CLUSTER 2006 Manuel d'utilisateur Page 23