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

Alternately, you can use the following command to view multi-pathing

information:

# vxdmpadm getsubpaths dmpnodename=devicename

For example, to view multi-pathing information for emc_clariion0_17, use

the following command:

# vxdmpadm getsubpaths dmpnodename=emc_clariion0_17

Typical output from the vxdmpadm getsubpaths command is as follows:

NAME STATE[A] PATH-TYPE[M] CTLR-NAME ENCLR-TYPE ENCLR-NAME ATTRS

===============================================================================

c0t5d7 ENABLED(A) PRIMARY c0 EMC_CLARiiON emc_clariion0 -

c0t5d7 ENABLED SECONDARY c0 EMC_CLARiiON emc_clariion0 --

c0t5d7 ENABLED SECONDARY c0 EMC_CLARiiON emc_clariion0 -

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” on page 79.

You can specify a customized name for a DMP node. User-specified names are

persistent even if names persistence is turned off.

You cannot assign a customized name that is already in use by a device. However,

if you assign names that follow the same naming conventions as the names that

the DDL generates, a name collision can potentially occur when a device is added.

If the user-defined name for a DMP device is the same as the DDL-generated name

for another DMP device, the vxdisk list command output displays one of the

devices as 'error'.

To specify a custom name for a DMP node

◆

Use the following command:

# vxdmpadm setattr dmpnode dmpnodename name=name

You can also assign names from an input file. This enables you to customize the

DMP nodes on the system with meaningful names.

Administering Dynamic Multi-Pathing

Setting customized names for DMP nodes

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