Chapter 10.1.4. Host to I/O Group mapping
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Chapter 10. Hosts 171 10.1.2 Host ports The general recommendation for utilizing host ports connected to the SVC is to limit the number of physical ports to two ports on two different physical adapters. Each of these ports will be zoned to one target port in each SVC node, thus limiting the number of total paths to four, preferably on totally separate redundant SAN fabrics. If four host ports are preferred for maximum redundant paths, the requirement is to zone each host adapter to one SVC target port on each node ( for a maximum of eight paths). The benefits of path redundancy are outweighed by the host memory resource utilization required for more paths. Use one host object to represent a cluster ...
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