Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

To assign DMP nodes from a file
1
Use the script vxgetdmpnames to get a sample file populated from the devices
in your configuration. The sample file shows the format required and serves
as a template to specify your customized names.
2
To assign the names, use the following command:
# vxddladm assign names file=pathname
To clear custom names
◆
To clear the names, and use the default OSN or EBN names, use the following
command:
# vxddladm -c assign names
Administering DMP using vxdmpadm
The vxdmpadm utility is a command line administrative interface to DMP.
You can use the vxdmpadm utility to perform the following tasks:
■ Retrieve the name of the DMP device corresponding to a particular path.
■ Display the members of a LUN group.
■ List all paths under a DMP device node, HBA controller or array port.
■ Display information about the HBA controllers on the host.
■ Display information about enclosures.
■ Display information about array ports that are connected to the storage
processors of enclosures.
■ Display information about devices that are controlled by third-party
multi-pathing drivers.
■ Gather I/O statistics for a DMP node, enclosure, path or controller.
■ Configure the attributes of the paths to an enclosure.
■ Set the I/O policy that is used for the paths to an enclosure.
■ Enable or disable I/O for a path, HBA controller or array port on the system.
■ Upgrade disk controller firmware.
■ Rename an enclosure.
■ Configure how DMP responds to I/O request failures.
159Administering Dynamic Multi-Pathing
Administering DMP using vxdmpadm