VERITAS Volume Manager 4.1 Administrator's Guide

Administering Dynamic Multipathing (DMP)
Disabling and Enabling Multipathing for Specific Devices
Chapter 3120
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:Produ
ctID matching the specified combination will be excluded from the v
iew of VxVM. This operation can be reversed using the vxdiskadm com
mand.
VxVM INFO V-5-2-1408 You can specify a VendorID:ProductID pattern a
t 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 V
endor 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 tr
ue 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 ch
aracters 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.