Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Administering Dynamic

Multipathing

This chapter includes the following topics:

■ How DMP works

■ Disabling multipathing and making devices invisible to VxVM

■ Enabling multipathing and making devices visible to VxVM

■ Enabling and disabling I/O for controllers and storage processors

■ 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.

The Dynamic Multipathing (DMP) feature of Veritas Volume Manager (VxVM)

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 multipathing in HP-UX.

See “DMP coexistence with HP-UX native multipathing” on page 143.

Chapter