Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Displaying paths controlled by a DMP node, controller, enclosure, or

array port

The vxdmpadm getsubpaths command lists all of the paths known to DMP. The

vxdmpadm getsubpaths command also provides options to list the subpaths

through a particular DMP node, controller, enclosure, or array port. To list the

paths through an array port, specify either a combination of enclosure name and

array port id, or array port WWN.

To list all subpaths known to DMP:

# vxdmpadm getsubpaths

The vxdmpadm getsubpaths command combined with the dmpnodename attribute

displays all the paths to a LUN that are controlled by the specified DMP node

name from the /dev/vx/rdmp directory:

# vxdmpadm getsubpaths dmpnodename=c2t66d0

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

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

c2t66d0 ENABLED(A) PRIMARY c2 ACME enc0 -

c1t66d0 ENABLED PRIMARY c1 ACME enc0 -

For A/A arrays, all enabled paths that are available for I/O are shown as

ENABLED(A).

For A/P arrays in which the I/O policy is set to singleactive, only one path is

shown as ENABLED(A). The other paths are enabled but not available for I/O. If

the I/O policy is not set to singleactive, DMP can use a group of paths (all primary

or all secondary) for I/O, which are shown as ENABLED(A).

See “Specifying the I/O policy” on page 175.

Paths that are in the DISABLED state are not available for I/O operations.

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

connected to a particular HBA controller:

# vxdmpadm getsubpaths ctlr=c2

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

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

c2t1d0 ENABLED PRIMARY c2t1d0 ACME enc0 -

c2t2d0 ENABLED PRIMARY c2t2d0 ACME enc0 -

c2t3d0 ENABLED SECONDARY c2t3d0 ACME enc0 -

c2t4d0 ENABLED SECONDARY c2t4d0 ACME enc0 -

Administering Dynamic Multipathing

Administering DMP using vxdmpadm

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