VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Disabling and Enabling Multipathing for Specific Devices

96 VERITAS Volume Manager Administrator’s Guide

Some examples of VID:PID specification are:

all - Include all disks

aaa:123 - Include all disks having VID ‘aaa’ and PID ‘123’

aaa*:123 - Include all disks having VID starting with ‘aaa’

and PID ‘123’

aaa:123* - Include all disks having VID ‘aaa’ and PID starting

with ‘123’

aaa:* - Include all disks having VID ‘aaa’ and any PID

Enter a VID:PID combination:[<pattern>,all,list,list-exclude,q,?]

All disks returning the speciﬁed Vendor ID and Product ID combination are made

visible to VxVM.

❖ Select option 4 to remove a pathgroup deﬁnition. (A pathgroup explicitly deﬁnes

alternate paths to the same disk.) Once a pathgroup has been removed, all paths that

were deﬁned in that pathgroup become visible again.

Remove a pathgroup definition

Menu: VolumeManager/Disk/IncludeDevices/PATHGROUP-VXVM

Use this operation to remove the definition of pathgroup. Specify

the serial numbers of the pathgroups at the prompt. This can be

obtained by typing list-exclude at the prompt.

Enter pathgroup number(s):[<number>,list-exclude,q,?]

❖ Select option 5 to enable multipathing for all disks that have paths through the

speciﬁed controller.

Note This option requires a reboot of the system.

Re-include controllers in DMP

Menu: VolumeManager/Disk/IncludeDevices/CTLR-DMP

Use this operation to make vxdmp multipath all disks on a

controller again.

As a result of this operation, all disks having a path through the

specified controller will be multipathed by vxdmp again.

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,?]