VERITAS Volume Manager 4.1 Administrator's Guide

Administering Dynamic Multipathing (DMP)
Disabling and Enabling Multipathing for Specific Devices
Chapter 3 123
characters respectively.
Some examples of VID:PID specification are:
all - Exclude all disks
aaa:123 - Exclude all disks having VID ‘aaa’ and PID ‘123’
aaa*:123 - Exclude all disks having VID starting with ‘aaa’and
PID ‘123’
aaa:123* - Exclude all disks having VID ‘aaa’ and PID starting
with ‘123’
aaa:* - Exclude 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
claimed in OTHER_DISKS category and so are not multipathed.
Enabling Multipathing and Making Devices Visible to VxVM
NOTE Some of the operations described in this section require a reboot of the system.
Select menu item 18 (Allow multipathing/Unsuppress devices from VxVM’s view) from
the vxdiskadm main menu to re-enable multipathing for a device, or to make a device visible
to VxVM again.
Step 1. At the following prompt, confirm that you want to continue:
Include Devices
Menu: VolumeManager/Disk/IncludeDevices
VxVM INFO V-5-2-1212 The devices selected in this operation will become visible
to VxVM and/or will be multipathed by vxdmp again. Only those devices which were
previously excluded can be included again.Do you want to continue ? [y,n,q,?] (
default: y)
Step 2. Select the operation you want to perform from the displayed list:
Volume Manager Device Operations
Menu: VolumeManager/Disk/IncludeDevices
1 Unsuppress all paths through a controller from VxVM’s view
2 Unsuppress a path from VxVM’s view
3 Unsuppress disks from VxVM’s view by specifying a VID:PID combination
4 Remove a pathgroup definition
5 Allow multipathing of all disks on a controller by VxVM
6 Allow multipathing of a disk by VxVM
7 Allow multipathing of disks by specifying a VID:PID combination