VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Administering DMP Using vxdmpadm
100 VERITAS Volume Manager Administrator’s Guide
configs: count=1 len=727
logs: count=1 len=110
Defined regions:
config priv 000017-000247[000231]:copy=01 offset=000000 disabled
config priv 000249-000744[000496]:copy=01 offset=000231 disabled
log priv 000745-000854[000110]:copy=01 offset=000000 disabled
lockrgn priv 000855-000919[000065]: part=00 offset=000000
Multipathing information:
numpaths: 2
c1t0d3 state=enabled type=secondary
c4t1d3 state=disabled type=primary
In the Multipathing information section of this output, the numpaths line shows
that there are 2 paths to the device, and the following two lines show that the path to
c1t0d3 is active (state=enabled) and that the other path c4t1d3 has failed
(state=disabled).
The type field is shown for disks on active/passive type disk arrays such as Nike, DG
Clariion, and Hitachi DF350. This field indicates the primary and secondary paths to the
disk.
The type field is not displayed for disks on active/active type disk arrays. Such arrays
have no concept of primary and secondary paths.
Administering DMP Using vxdmpadm
The vxdmpadm utility is a command line administrative interface to the DMP feature of
VxVM.
You can use the vxdmpadm utility to perform the following tasks.
◆ Retrieve the name of the DMP device corresponding to a particular path
◆ List all paths under a DMP device
◆ List all controllers connected to disks attached to the host
◆ List all the paths connected to a particular controller
◆ Enable or disable a host controller on the system
◆ Rename an enclosure
◆ Control the operation of the DMP restore daemon
The following sections cover these tasks in detail along with sample output. For more
information, see the vxdmpadm(1M) manual page.