The following Dynamic Multi-Pathing (DMP) command lists attributes of all HBA controllers on the system:

# vxdmpadm listctlr all

CTLR-NAME   ENCLR-TYPE    STATE    ENCLR-NAME      PATH_COUNT
=============================================================
scsi1       OTHER         ENABLED  other0          3
scsi2       X1            ENABLED  jbod0           10 
scsi3       ACME          ENABLED  enc0            24
scsi4       ACME          ENABLED  enc0            24

This output shows that the controller scsi1 is connected to disks that are not in any recognized DMP category as the enclosure type is OTHER.

The other controllers are connected to disks that are in recognized DMP categories.

All the controllers are in the ENABLED state, which indicates that they are available for I/O operations.

The state DISABLED is used to indicate that controllers are unavailable for I/O operations. The unavailability can be due to a hardware failure or due to I/O operations being disabled on that controller by using the vxdmpadm disable command.

The following forms of the command lists controllers belonging to a specified enclosure or enclosure type:

# vxdmpadm listctlr enclosure=emc0

or

# vxdmpadm listctlr type=EMC

CTLR-NAME   ENCLR-TYPE    STATE    ENCLR-NAME       PATH_COUNT
===============================================================
scsi2       EMC          ENABLED  emc0             10
scsi3       EMC          ENABLED  emc0             24

The vxdmpadm getctlr command displays HBA vendor details and the Controller ID. For iSCSI devices, the Controller ID is the IQN or IEEE-format based name. For FC devices, the Controller ID is the WWN. Because the WWN is obtained from ESD, this field is blank if ESD is not running. ESD is a daemon process used to notify DDL about occurrence of events. The WWN shown as 'Controller ID' maps to the WWN of the HBA port associated with the host controller.

# vxdmpadm getctlr fscsi2

LNAME     PNAME       VENDOR    CTLR-ID
==============================================================
fscsi2    20-60-01    IBM       10:00:00:00:c9:2d:26:11