HP LeftHand SAN Solutions Support Document - Application Notes - Best Practices for Enabling Microsoft Windows with SAN/iQ®

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Configuring the ISCSI Volume
Using the SAN/iQ Management Console, create a volume with the size and
thresholds all set to the same amount, e.g. 10GB. Set Replication Levels and
other parameters to appropriate values. Apply a read-write Volume List to the
volume and configure an Authentication Group for the application server,
then use the iSCSI Control Panel to add the test volume.
Optionally, launch Windows Performance Monitor and setup the counters
according to the section above.
Configuring IOMeter
Start IOMeter and the main window will come up. Below the Topology pane
will be the local hostname with a Worker below it. If you have a
multi-processor host, you will see a Worker for each processor. Highlight the
first worker in the list, and then select the drive number of the raw disk which
was created for the test. Enter a number into the “# of Outstanding I/Os per
target” that is equal to two times the amount of individual disk drives in your
SAN cluster. For example, three NSM-160s have four disks each times the
three NSMs equals twelve disks. So, twenty-four would be used for the “# of
Outstanding I/Os”.