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

Suppressing or including devices for VxVM or DMP control
The vxdmpadm exclude command suppresses devices from VxVM based on the
criteria that you specify. The devices can be added back into VxVM control by
using the vxdmpadm include command. The devices can be included or excluded
based on VID:PID combination, paths, controllers, or disks. You can use the bang
symbol (!) to exclude or include any paths or controllers except the one specified.
Note: The ! character is a special character in some shells. The following syntax
shows how to escape it in a bash shell.
# vxdmpadm exclude [vxvm | vxdmp] { all | product=VID:PID |
ctlr=[\!]ctlr | dmpnodename=diskname [ path=\!pathname] }
# vxdmpadm include [vxvm | vxdmp] { all | product=VID:PID |
ctlr=[\!]ctlr | dmpnodename=diskname [ path=\!pathname] }
where:
all – all devices
product=VID:PID – all devices with the specified VID:PID
ctlr=ctlr – all devices through the given controller
dmpnodename=diskname - all paths under the DMP node
dmpnodename=diskname path=\!pathname - all paths under the DMP node except
the one specified.
Gathering and displaying I/O statistics
You can use the vxdmpadm iostat command to gather and display I/O statistics
for a specified DMP node, enclosure, path or controller.
To enable the gathering of statistics, enter this command:
# vxdmpadm iostat start [memory=size]
To reset the I/O counters to zero, use this command:
# vxdmpadm iostat reset
The memory attribute can be used to limit the maximum amount of memory that
is used to record I/O statistics for each CPU. The default limit is 32k (32 kilobytes)
per CPU.
Administering Dynamic Multipathing
Administering DMP using vxdmpadm
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