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

Administering Dynamic Multipathing (DMP)
Disabling and Enabling Multipathing for Specific Devices
Chapter 3 117
combination visible to VxVM again.
As a result of this operation, disks that return VendorID:ProductID matching the
specified combination will be made visible to VxVM again.
You can specify a VID:PID combination at the prompt. The specification can be as
follows:
VID:PID where VID stands for Vendor ID
PID stands for Product ID
(The command vxdmpinq in /etc/vx/diag.d can be used to obtain the Vendor ID and
Product ID)
Both VID and PID can have an optional ’*’ (asterisk) following them.
If a ’*’ follows VID, it will result in the inclusion of all disks returning
Vendor ID starting with VID. The same is true for Product ID as well. Both VID
and PID should be non NULL. The maximum allowed lengths for Vendor ID and Product
ID are 8 and 16 characters respectively.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,?]