VERITAS Volume Manager 4.1 Administrator's Guide

Administering Dynamic Multipathing (DMP)
Chapter 3110
NOTE You may need an additional license to use this feature.
The Dynamic Multipathing (DMP) feature of VERITAS Volume Manager (VxVM) provides
greater reliability and performance by using path failover and load balancing. This feature is
available for multiported disk arrays from various vendors. See the VERITAS Volume
Manager Hardware Notes for information about supported disk arrays.