Setting customized names for DMP nodes

The DMP node name is the meta device name which represents the multiple paths to a disk. The DMP node name is generated from the device name according to the VxVM naming scheme.

See Disk device naming in VxVM.

You can specify a customized name for a DMP node. User-specified names are persistent even if names persistence is turned off.

To specify a custom name for a DMP node

You can also assign names from an input file. This enables you to customize the DMP nodes on the system with meaningful names.

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