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SNC 6101 User’s Guide 39

7 After the SNC 6101 reboots, use fcShowNames to verify your changes.

Verify that the output in the Node Name column is correct.

Changing a WWN for one FC port

Use the following procedure when you replace another vendor’s appliance with an SNC 6101 and it is critical

that one of the replacement SNC FC ports retain the same WWN as the FC port of the replaced appliance.

1 Read the section Changing the WWN

on page 37.

2 Follow the instructions in Before Changing the WWN on a Replacement SNC 6101

on page 37.

3 From the service terminal, enter the wwnPortSet <port> command to set the WWPN and WWNN

for a single FC port. wwnPortSet sets the Port and Node WWNs for a single FC port. The port number

is also specified on the command line. After your entry is checked for syntax and the WWN you entered

is valid, you are prompted to enter a password. Refer to the following wwnPortSet example:

SNC > wwnPortSet 2

This command will change the WWN for Fibre Channel Port <2>. You will be

asked to provide both the Node WWN and Port WWN for this port.

You should never operate 2 FC devices that are set to the same WWN. This

may destabilize your SAN.

Do you want to proceed (enter "yes" to continue): yes

Enter the new Node WWN (or q to quit): 10:20:30:40:50:60:70:80

Enter the new Port WWN (or q to quit): 11:21:31:41:51:61:71:81

Enter the Password: OverrideWWN

If the password you enter is valid, this also causes the SNC 6101 to reboot.

4 After the SNC 6101 has rebooted, enter the fcShowNames command to verify the change.

5 Verify that the output in the Port Name column is correct.

CAUTION

Because you are changing the SNC WWNs to represent another

vendor’s device, there are no checks to make certain an appropriate

node or port ID or OUI are entered. Use caution. Entering inaccurate

WWN information could cause communication issues.

CAUTION

WWN override functions are available only through the service port.

These commands cannot be executed if attempted in a telnet session.

CAUTION

Most vendors require the OUI and device ID to match between the

WWPN and WWNN. Make sure these values match or device

connectivity may not occur. It is possible for the SNC to have a

different WWNN for each port.

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Quantum Scalar 100 Guía de usuario Pagina 43