HP 6400/8400 HP StorageWorks 6400/8400 Enterprise Virtual Array User Guide - Page 32

Entering the WWN checksum, Location of the World Wide Name labels

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NOTE: • The WWN is unique to a controller pair and cannot be used for any other controller pair or device anywhere on the network. • This is the only WWN applicable to any controller installed in a specific physical location, even a replacement controller. • Once a WWN is assigned to a controller, you cannot change the WWN while the controller is part of the same storage system. Figure 24 Location of the World Wide Name labels 1. World Wide Name labels Complete the following procedure to assign the WWN to each pair of controllers. 1. Turn the power switches on both controllers off. 2. Apply power to the rack. 3. Turn the power switch on both controllers on. NOTE: Notifications of the startup test steps that have been executed are displayed while the controller is booting. It may take up to two minutes for the steps to display. The default WWN entry display has a 0 in each of the 16 positions. 4. Press or until the first character of the WWN is displayed. Press to accept this character and select the next. 5. Repeat Step 4 to enter the remaining characters. 6. Press Enter to accept the WWN and select the checksum entry mode. Entering the WWN checksum The second part of the WWN entry procedure is to enter the two-character checksum, as follows. 1. Verify that the initial WWN checksum displays 0 in both positions. 2. Press or until the first checksum character is displayed. Press to accept this character and select the second character. 3. Press or until the second character is displayed. Press Enter to accept the checksum and exit. 4. Verify that the default display is automatically selected. This indicates that the checksum is valid. 32 Enterprise Virtual Array startup

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NOTE:
•
The WWN is unique to a controller pair and cannot be used for any other controller pair or
device anywhere on the network.
•
This is the only WWN applicable to any controller installed in a specific physical location,
even a replacement controller.
•
Once a WWN is assigned to a controller, you cannot change the WWN while the controller
is part of the same storage system.
Figure 24 Location of the World Wide Name labels
1. World Wide Name labels
Complete the following procedure to assign the WWN to each pair of controllers.
1.
Turn the power switches on both controllers off.
2.
Apply power to the rack.
3.
Turn the power switch on both controllers on.
NOTE:
Notifications of the startup test steps that have been executed are displayed while
the controller is booting. It may take up to two minutes for the steps to display. The default
WWN entry display has a 0 in each of the 16 positions.
4.
Press
or
until the first character of the WWN is displayed. Press
to accept this character
and select the next.
5.
Repeat
Step 4
to enter the remaining characters.
6.
Press
Enter
to accept the WWN and select the checksum entry mode.
Entering the WWN checksum
The second part of the WWN entry procedure is to enter the two-character checksum, as follows.
1.
Verify that the initial WWN checksum displays 0 in both positions.
2.
Press
or
until the first checksum character is displayed. Press
to accept this character
and select the second character.
3.
Press
or
until the second character is displayed. Press
Enter
to accept the checksum and
exit.
4.
Verify that the default display is automatically selected. This indicates that the checksum is
valid.
32
Enterprise Virtual Array startup