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Disabling multipathing and making devices invisible to VxVM

 To disable multipathing and make devices invisible to VxVM

Warning: A reboot of the system may be required.
  1. Run the vxdiskadm command, and select menu option 16 (Prevent multipathing/Suppress devices from VxVM's view) from the vxdiskadm main menu to prevent a device from being multipathed by the VxVM DMP driver (vxdmp), or to exclude a device from the view of VxVM. You are prompted to confirm whether you want to continue.
  2. Select the operation you want to perform from the displayed list:

1 Suppress all paths through a controller from VxVM's view

2 Suppress a path from VxVM's view

3 Suppress disks from VxVM's view by specifying a VID:PID

combination

4 Suppress all but one paths to a disk

5 Prevent multipathing of all disks on a controller by VxVM

6 Prevent multipathing of a disk by VxVM

7 Prevent multipathing of disks by specifying a VID:PID

combination

8 List currently suppressed/non-multipathed devices

? Display help about menu

?? Display help about the menuing system

q Exit from menus

Help text and examples are provided onscreen for all the menu items.

The numbered options have the following actions:

Option 1 

Excludes all paths through the specified controller from the view of VxVM. These paths remain in the disabled state until the next reboot, or until the paths are re-included. 

Option 2 

Excludes specified paths from the view of VxVM. 

Option 3 

Excludes disks from the view of VxVM that match a specified Vendor ID and Product ID. 

Option 4 

Defines 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. 

Option 5 

Disables multipathing for all disks on a specified controller. 

Option 6 

Disables multipathing for specified paths. The disks that correspond to a specified path are claimed in the OTHER_DISKS category and are not multipathed. 

Option 7 

Disables multipathing for disks that match a specified Vendor ID and Product ID. The disks that correspond to a specified Vendor ID and Product ID combination are claimed in the OTHER_DISKS category and are not multipathed. 

Option 8 

Lists the devices that are currently suppressed or not multipathed.