User`s guide

10 – Performing Diagnostics

Preparing for Diagnostic Testing

10-2 FS0054603-00 C

Perform the following steps to run a read/write buffer test:

1. Prepare for the test (see section 10.1).

2. Set the diagnostic test parameters (see section 10.2).

3. Run the diagnostic test (see section 10.3).

4. View the diagnostic test results (see section 10.4).

NOTE: The loopback test must be run with the loopback connector (unless the

operating system uses one of the driver versions in table 10-1); the

read/write buffer test must be run without the loopback connector on a

device (disk or tape) that supports the SCSI Read Buffer and SCSI Write

Buffer commands.

10.1

Preparing for Diagnostic Testing

Preparation for the loopback and read/write buffer tests differs. In addition, you can

use SANsurfer FC HBA Manager to locate the HBA you want to test. See the

following, as appropriate:

■ Find the HBA port you want to test (see section 10.1.1)

■ Loopback test (see section 10.1.2)

■ Read/write buffer test (see section 10.1.3)

10.1.1

Finding an HBA Port

NOTE: This feature is not supported on QLA200 nor QLA22xx HBAs.

You can flash the QLA23xx HBA port’s LED to locate the HBA port in your computer

by following these steps:

1. Right-click an HBA port in the HBA tree.

2. From the pop-up menu, select Flash HBA Port Beacon. The QLA23xx HBA

port’s LED begins to flash.

To stop the LED from flashing, follow these steps:

1. Right-click the HBA port in the HBA tree.

2. From the pop-up menu, deselect Flash HBA Port Beacon.