Quantum Scalar 100 Podręcznik Użytkownika Strona 44

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40 Maintenance
Clearing Changes to the WWN for all FC ports
Use this procedure when you are removing an SNC 6101 that had its WWNs changed to match a pre-
existing unit.
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 Enter the wwnGlobalClear command.
The following messages are displayed:
This command will restore the WWN for Fibre Channel Ports.
This should only be done when there is no SNC set to this WWN.
You should never operate 2 FC devices that are set to the same WWN. This
may destabilize your SAN.
The unit will be rebooted after the WWN change.
Do you want to proceed (enter "yes" to continue):
4 Type “yes and press ENTER.
You are prompted for the password.
5 Type the password OverrideWWN and press ENTER.
This causes the SNC 6101 to reboot.
6 After the SNC 6101 has rebooted, enter the fcShowNames command to verify your changes.
The output in the Node Name column of the of the fcShowNames command should no longer match
the output previously saved before using the wwnGlobalClear command.
Clearing Changes to the WWN for one FC Port
Use this procedure when you are removing an SNC 6101 with the WWN on one port changed to match the
WWN of a pre-existing unit.
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 Enter the wwnPortClear <port> command.
The following message will appear:
This command will restore the WWN for Fibre Channel Port <x>. This should
only be done when there is no SNC set to this WWN.
You should never operate 2 FC devices that are set to the same WWN. This
may destabilize your SAN.
The unit will be rebooted after the WWN change.
Do you want to proceed (enter "yes" to continue):
CAUTION
The WWN override functions are available only through the service
port. These commands cannot be executed if attempted in a telnet
session.
CAUTION
The WWN override functions are available only through the service
port. These commands cannot be executed if attempted in a telnet
session.
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