VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Administering Dynamic Multipathing (DMP)

Disabling and Enabling Multipathing for Speciﬁc Devices

Chapter 3 111

4 Suppress all but one paths to a disk

5 Prevent multipathing of all disks on a controller by VxVM

6 Prevent multipathing of a disk by VxVM

7 Prevent multipathing of disks by specifying a VID:PID combination

8 List currently suppressed/non-multipathed devices

? Display help about menu

?? Display help about the menuing system

q Exit from menus

Select an operation to perform:

• Select option 1 to exclude all paths through the speciﬁed controller

from the view of VxVM. These paths remain in the disabled state

until the next reboot, or until the paths are re-included.

Exclude controllers from VxVM

Menu: VolumeManager/Disk/ExcludeDevices/CTLR-VXVM

Use this operation to exclude all paths through a controller from VxVM.

This operation can be reversed using the vxdiskadm command.

You can specify a controller name at the prompt. A controller name is of the form

c#, example c3, c11 etc. Enter ’all’ to exclude all paths on all the controllers

on the host. To see the list of controllers on the system, type ’list’.

Enter a controller name:[ctlr_name,all,list,list-exclude,q,?]

• Select option 2 to exclude speciﬁed paths from the view of VxVM.

Exclude paths from VxVM

Menu: VolumeManager/Disk/ExcludeDevices/PATH-VXVM

Use this operation to exclude one or more paths from VxVM. As a result of this

operation, the specified paths will be excluded from the view of VxVM. This

operation can be reversed using the vxdiskadm command.

You can specify a pathname or a pattern at the prompt. Here are some path

selection examples:

all: all paths

c3t4d2: a single path

list: list all paths on the system

Enter a pathname or pattern:[<Pattern>,all,list,list-exclude,q?]