IBM SAN192C-6 Installation, Service And User Manual page 144

• You must follow ESD protocols, including the following:
– You must wear a grounded ESD wristband (or other personal grounding device) whenever you handle
the electronic modules outside the grounded chassis.
– You must carry electronic modules by only their covered edges or handles. Do not touch their
electronic components.
– Whenever a module is outside a grounded chassis, place it flat on an antistatic surface or in an
antistatic bag. Never lean the module on anything nor place anything else on top of the module nor
lean anything on the module.
• Verify that the chassis is grounded.
• Verify that you have the following tools and equipment:
– ESD wrist strap (or other personal grounding device).
– Number 1 Phillips torque screwdriver.
– Manual torque screwdrivers are recommended. Be sure to never exceed the recommended torque
setting for the screw being used.
• Ensure that sufficient quantity of Crossbar Fabric-3 Switching Modules (6 modules are supported in a
SAN384C-6, or SAN192C-6 Multilayer Director) are available for replacing the current Crossbar Fabric-1
Switching Modules in the switch.
Warning : Mixing different crossbar fabric switching modules (Crossbar Fabric-1 Switching
Module and Crossbar Fabric-3 Switching Module) outside a maintenance window, is not supported.
This mix of modules is supported only while you are migrating from Crossbar Fabric-1 Switching
Modules to Crossbar Fabric-3 Switching Modules. After a reboot of the switch, if there is a mix of
crossbar Fabric-1 Switching Modules and Crossbar Fabric-3 Switching Modules, only the Crossbar
Fabric-3 Switching Modules will be powered on.
Migration procedure
About this task
The migration process should be performed during schedule maintenance period only.
Notes :
• Backward migration procedure (migrating from Crossbar Fabric-3 Switching Module to Crossbar
Fabric-1 Switching Module) will be disruptive.
• Perform the Crossbar Fabric-1 Switching Module to Crossbar Fabric-3 Switching Module migration
after the Supervisor-1 to Supervisor-4 Module migration is completed. A mix mode of Crossbar
Fabric-1 Switching Modules with Supervisor-4 Modules and Crossbar Fabric-3 Switching Modules with
Supervisor-1 Modules is not supported.
• Once the crossbar fabric switching modules migration process is initiated, wait for the migration
process to complete, do not abort the process midway.
To migrate a SAN384C-6 or SAN192C-6 chassis from Crossbar Fabric-1 Switching Modules to Crossbar
Fabric-3 Switching Modules, follow these steps:
Procedure
1. Shut down the crossbar fabric switching module by using the out-of-service xbar slot command (where
slot refers to the external crossbar fabric switching module slot number).
Note : If the Crossbar Fabric-1 Switching Modules are not installed in the recommended slots, when
you migrate to the Crossbar Fabric-3 Switching Modules, install the new modules in the recommended
118 IBM Storage Networking SAN192C-6, SAN384C-6 and SAN768C-6: SAN192C-6, SAN384C-6 and
SAN768C-6 Installation, Service, and User Guide