958-000281-003, March 2005)

Universal port module kit installation instructions 19

External loopback test

Perform the following procedure to do an external loopback test for a single port or a UPM card

(four ports).

1. If the UPM card is currently being used in a fabric, notify storage users on the fabric that you

will perform a disruptive external loopback test on a port or UPM card, which will disconnect

the fiber optic cable or cables. Ensure the system administrator queues Fibre Channel frame

traffic through the port or UPM card and sets attached devices offline.

NOTE: IAt the start of the loopback test, the port or UPM card can be online, offline, blocked, or

unblocked.

2. In the HA-Fabric Manager server, open HAFM.

The Product View appears.

3. Double-click the icon representing the director for which the loopback test is performed.

The Hardware View for the selected director appears.

4. In the Hardware View, verify the location of the port or UPM card to be tested. When the

mouse cursor is passed over a graphical UPM card on the front view of the director, the card is

highlighted with a blue border and a pop-up appears with the following information:

•Port card type (UPM).

• Chassis slot number (0 through 15 inclusive for the Director 2/64;

0 through 35 inclusive (excluding 32) for the Director 2/140).

• The four consecutive port numbers on the selected card. Valid port numbers are in the range

of 0 through 63 inclusive for the Director 2/64. Valid port numbers are in the range of 0

through 143 inclusive [excluding 128 through 131] for the Director 2/140.

5. Reset each port to be tested:

a. In the Hardware View, double-click the UPM card for which ports are to be tested.

The Port Card View appears.

b. In the Port Card View, right-click the tested port.

A menu appears.

c. Select Reset Port.

A Reset Port n message box appears, where n is the port number.

d. Click OK.

The port is reset.

e. Click Back To Full View to return to the Hardware View.

6. Disconnect the fiber optic jumper cable from the port to be tested.

If a UPM card is tested, disconnect all four fiber optic jumper cables.