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Modern storage arrays typically have multiple paths to the same disk or LUN. This feature enables you to increase storage bandwidth and availability. Sun StorEdge Traffic Manager Software, formerly known as MPXIO, is built into the Solaris 9 OE and can be used with Solaris Volume Manager software.

SAE has used multi-pathing to increase the performance of DSS benchmarks. DSS environments have larger I/O sizes which stress controller throughput.

Most customers implement some sort of alternate path scheme for availability. If Sun StorEdge Traffic Manager software is used, multiple paths provide availability in the event of a controller failure and load balancing provides increased bandwidth.

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