Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Administering Dynamic

Multi-Pathing

This chapter includes the following topics:

■ How DMP works

■ Disabling multi-pathing and making devices invisible to VxVM

■ Enabling multi-pathing and making devices visible to VxVM

■ About enabling and disabling I/O for controllers and storage processors

■ About displaying DMP database information

■ Displaying the paths to a disk

■ Setting customized names for DMP nodes

■ Administering DMP using vxdmpadm

How DMP works

Note: You need a full license to use this feature.

Veritas Dynamic Multi-Pathing (DMP) provides greater availability, reliability,

and performance by using path failover and load balancing. This feature is available

for multiported disk arrays from various vendors.

DMP coexists with the native multi-pathing in HP-UX.

See “DMP coexistence with HP-UX native multi-pathing” on page 147.

Chapter