Installation and Reference Guide for HP MPIO Full Featured DSM for XP family of Disk Arrays 3.00.00 (AA-RVJ6F-TE, March 2008)

To start the performance monitoring, complete the steps below:
1. Select Start > Programs > Hewlett-Packard > XP DSM > Path Performance.
Alternatively, you can select Start > Run and run the command perfmon /wmi.
2. Select HP DSM High Performance Provider performance object and add the appropriate counters.
HP MPIO XP DSM persistent reservations clear utility
The HP MPIO XP DSM persistent reservations clear utility enables you to view and clear reservations
on the disk(s) that is left behind due to incorre ct installations or removing of the HP MPIO XP DSM or
an u nsuccessful cluster node failover.
WARNING!
Using this ut
ility incorrectly may result in loss of data and/or incorrect operation of MSCS/Failover
Cluster. HP s
hall not be liable for problems resulting from the incorrect use of this utility or in solving them.
The persistent reservations clear utility is located on the HP MPIO XP DSM installation media, and gets
copied to the HP MPIO XP DSM installation directory during the installation. You can run this utility on a
system that has HP MPIO XP DSM installed as well as on a system where HP MPIO XP DSM is not installed.
To run this utility on a system where the HP MPIO X P DSM is installed, complete the steps below:
1. Select Start > Programs > Hewlett-Packard > XP DSM > HPDSM PR Utilit y.
2. Enter the command hpprutil /? at the comm and prompt to display the instructions for using
this utility.
The hpprutil utility supports the following commands:
•hpprutildevices
• hpprutil clear device
• hpprutil help
hpprutil devices
Syntax: hpprutil devices
The hpprutil devices commanddisplaysdetailsofreservationsonthedevicesasshownbelow
in the following example. If there are no devices present, the following message is displayed: No
Devices Found.
Example:
hpprutil devices
Device#
Device Name
SCSI Address
Reservation
NT
Disk#
1
HP OPEN-
V
4.0.3.0
PR
Disk6
2
HP OPEN-V
4.0.3.1
PR
Disk7
hpprutil clear device
Syntax: hpprutil clear device=x
Syntax: hpprutil clear device=m n
The hpprutil clear device command clears the reservation present on device x,orclearsthe
reservation present on devices starting from m to n (both inclusive), depending on the input parameter
specified.
Example:
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Software components