IBM SAN Volume Controller 2145-CG8, Hardware Maintenance Manual

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10. If you are intending to replace the service controller FRU, label the one that you are removing to
avoid a possible worldwide node name (WWNN) conflict if the service controller is ever reused.
Note: When you replace a service controller, it is normal to change the worldwide node name
(WWNN) of the new service controller to match the one that is being replaced. In this case, you will
have two service controllers with the same WWNN. Clearly label the service controller that you are
removing and indicate that its WWNN is now a duplicate and that it must not be connected to a
SAN before its WWNN is reset.
Removing and replacing the SAN Volume Controller 2145-CG8 or 2145-CF8 service
controller cable
You can remove and replace the USB service-controller cable in the SAN Volume Controller 2145-CG8 or
2145-CF8.
DANGER
Multiple power cords. The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords. (L003)
svc00322
1 2
or
1
2
svc00735
or
1
3 4
2
svc00734
This service action requires you to remove the cover and:
v Turn the node off.
v
Disconnect the power cables.
v
Disconnect or reconnect the USB service-controller data cable.
1
2
3
2
svc00245b
Figure 75. SAN Volume Controller 2145-CG8 or 2145-CF8 service controller
88
IBM SAN Volume Controller Hardware Maintenance Guide
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