Understanding Clustering Software
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Database Domain:
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Storage private network: Connections through P1 (active) and P0 (standby) on the
InfiniBand HCA associated with the CPU associated with each Small Domain.
For example, for a Small Domain that is associated with CPU0, these connections would
be through the InfiniBand HCA installed in slot 3, through ports P1 (active) and P0
(standby) on that InfiniBand HCA.
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Exadata private network: Connections through P0 (active) and P1 (standby) on the
InfiniBand HCA associated with the CPU associated with each Small Domain.
For example, for a Small Domain that is associated with CPU0, these connections would
be through the InfiniBand HCA installed in slot 3, through ports P0 (active) and P1
(standby) on that InfiniBand HCA.
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Application Domain:
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Storage private network: Connections through P1 (active) and P0 (standby) on the
InfiniBand HCA associated with the CPU associated with each Small Domain.
For example, for a Small Domain that is associated with CPU0, these connections would
be through the InfiniBand HCA installed in slot 3, through ports P1 (active) and P0
(standby) on that InfiniBand HCA.
■
Oracle Solaris Cluster private network: Connections through P0 (active) and P1
(standby) on the InfiniBand HCA associated with the CPU associated with each Small
Domain.
For example, for a Small Domain that is associated with CPU0, these connections would
be through the InfiniBand HCA installed in slot 3, through ports P0 (active) and P1
(standby) on that InfiniBand HCA.
Understanding Clustering Software
Clustering software is typically used on multiple interconnected servers so that they appear as
if they are one server to end users and applications. For Oracle SuperCluster T5-8, clustering
software is used to cluster certain logical domains on the SPARC T5-8 servers together with the
same type of domain on other SPARC T5-8 servers. The benefits of clustering software include
the following:
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Reduce or eliminate system downtime because of software or hardware failure
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Ensure availability of data and applications to end users, regardless of the kind of failure
that would normally take down a single-server system
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Increase application throughput by enabling services to scale to additional processors by
adding nodes to the cluster and balancing the load
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Provide enhanced availability of the system by enabling you to perform maintenance
without shutting down the entire cluster
84 Oracle SuperCluster T5-8 Owner's Guide • May 2016