8x00 family of Disk Arrays 4.01.00 installation and reference guide (AA-RW7SP-TE, September 2010)

HP MPIO EVA DSM command line interface (CLI)

The HP MPIO EVA DSM command line interface (HPDSM.EXE) enables you to monitor and manage

HP DSMs in an MPIO environment.

HP MPIO EVA DSM performance monitoring provider

The HP MPIO EVA DSM performance monitoring provider (HpPerfProv.DLL) allows you to monitor

the Input-Output (I/O) performance of a device path using the system monitor.

To start the performance monitoring, complete the following steps:

1. Select Start > Programs > Hewlett-Packard > EVA DSM > Path Performance.

Alternatively, you can select Start > Run and execute the command perfmon /wmi.

2. Select HP DSM High Performance Provider performance object and add the appropriate counters.

HP MPIO EVA DSM persistent reservations clear utility

The HP MPIO EVA DSM persistent reservations clear utility enables you to view and clear reservations

on the disk(s) that are left behind due to incorrect installation or removal of the HP MPIO EVA DSM

or an unsuccessful cluster node failover.

CAUTION:

Using this utility incorrectly may result in loss of data and/or incorrect operation of MSCS/Failover

Cluster. HP shall not be liable for problems resulting from the incorrect use of this utility or for solving

them.

The persistent reservations clear utility is located on the HP MPIO EVA DSM installation media, and

gets copied to the HP MPIO EVA DSM installation directory during the installation. You can run this

utility either on a system that has HP MPIO EVA DSM installed or on a system where HP HP MPIO

EVA DSM is not installed.

To run this utility on a system where the HP MPIO EVA DSM is installed, complete the following steps:

1. Select Start > Programs > Hewlett-Packard > EVA DSM > HPDSM PR Utility.

2. Enter the command hpprutil /? at the command prompt to display the instructions for using

this utility.

The hpprutil utility supports the following commands:

• hpprutil devices

• hpprutil clear device

• hpprutil help

hpprutil devices

Syntax: hpprutil devices

The hpprutil devices command displays details of reservations on the devices as shown in the

following example. If there are no devices present, the following message is displayed: No Devices

Found.

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