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

Administering Dynamic Multipathing (DMP)
Disabling and Enabling Multipathing for Specific Devices
Chapter 3112
• Select option 3 to exclude disks from the view of VxVM that match a
specified Vendor ID and Product ID.
NOTE This option requires a reboot of the system.
Exclude VID:PID from VxVM
Menu: VolumeManager/Disk/ExcludeDevices/VIDPID-VXVM
Use this operation to exclude disks returning a specified VendorID:ProductID
combination from VxVM.
As a result of this operation, all disks that return VendorID:ProductID matching
the specified combination will be excluded from the view of VxVM. This operation
can be reversed using the vxdiskadm command.
You can specify a VendorID:ProductID pattern 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 exclusion of all disks returning
Vendor ID starting with the specified VID. The same is true for Product ID as
well. Both VID and PID should be non NULL. The maximum allowed lengths for
VendorID and ProductID are 8 and 16 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-exclude,q,?]
• Select option 4 to define a pathgroup for disks that are not
multipathed by VxVM. (A pathgroup explicitly defines alternate
paths to the same disk.) Only one path is made visible to VxVM.