Sun Cluster Concepts Guide for Solaris OS

SPARC: LDoms Guest Domains: Redundant I/O Domains

In this logical domains (LDoms) guest domain topology, multiple I/O domains ensure that guest domains, or nodes within the cluster, continue to operate if an I/O domain fails. Each LDoms guest domain node acts the same as a Solaris host in a cluster.

In this topology, the guest domain runs IP network multipathing (IPMP) across two public networks, one through each I/O domain. Guest domains also mirror storage devices across different I/O domains. To learn more about guidelines for using and installing LDoms guest domains or LDoms I/O domains in a cluster, see How to Install Sun Logical Domains Software and Create Domains in Sun Cluster Software Installation Guide for Solaris OS.

The following figure illustrates a configuration in which redundant I/O domains ensure that nodes within the cluster continue to operate if an I/O domain fails.

Figure 2–9 SPARC: Redundant I/O Domains

Illustration: The preceding context describes the graphic.