Red Hat CLUSTER SUITE - CONFIGURING AND MANAGING A CLUSTER 2006 Manual de usuario Pagina 23

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Piranha Architecture
Appears as one mega-machine to clients: SSI at the IP level
One or two nodes acting as IPVS directors
Stand-alone cluster: Not dependent on CMAN, GULM, etc.
IPVS routing table is replicated between the primary and backup directors for
hot-standby operation
No dependencies on shared storage (no shared data to protect)
Real servers can use GFS, NFS, or manual replication (using rsync, for
example)for static content
Provides high availability for applications via redundant Real Servers and
(optionally) a redundant director
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