Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

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135Administering dynamic multipathing (DMP)

Administering DMP using vxdmpadm

You can also use getsubpaths to obtain information about all the paths that are

connected to a port on an array. The array port can be specified by the name of the

enclosure and the array port ID, or by the worldwide name (WWN) identifier of the array

port:

# vxdmpadm getsubpaths enclr=HDS9500V0 portid=1A

# vxdmpadm getsubpaths pwwn=20:00:00:E0:8B:06:5F:19

Displaying information about controllers

The following command lists attributes of all HBA controllers on the system:

# vxdmpadm listctlr all

CTLR-NAME ENCLR-TYPE STATE ENCLR-NAME

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

c1 OTHER ENABLED other0

c2 X1 ENABLED jbod0

c3 ACME ENABLED enc0

c4 ACME ENABLED enc0

This output shows that the controller c1 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.

This form of the command lists controllers belonging to a specified enclosure and

enclosure type:

# vxdmpadm listctlr enclosure=enc0 type=ACME

CTLR-NAME ENCLR-TYPE STATE ENCLR-NAME

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

c2 ACME ENABLED enc0

c3 ACME ENABLED enc0

Displaying information about enclosures

To display the attributes of a specified enclosure, including its enclosure type, enclosure

serial number, status and array type, use the following command:

# vxdmpadm listenclosure enc0

ENCLR_NAME ENCLR_TYPE ENCLR_SNO STATUS ARRAY_TYPE

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

enc0 A3 60020f20000001a90000 CONNECTED A/P