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Warning :
It is not supported to mix different crossbar fabric switching modules (Crossbar Fabric-1 Switching
Module and Crossbar Fabric-3 Switching Module) outside a maintenance window. This mix of
modules is supported only while you are migrating from Fabric-1 modules to Fabric-3 modules.
After a reboot of the switch, if there is a mix of Fabric-1 and Fabric-3 modules, only the Fabric-3
modules will be powered on.
Warning :
Ensure that there is no loose debris (such as paper, ties, dust) around the back of the chassis when
the crossbar switching modules are being removed. When the crossbar switching modules are
pulled, the vacuum created can be strong enough to pull the loose debris into the chassis.
Procedure
1. Before installing any modules, install at least one Supervisor-1 module.
2. Remove the fan module that is over the crossbar fabric module to be removed. For more information
on how to remove a fan module, see "Removing a Crossbar Fabric Module" on page 116
3. Open both ejector levers on the new or replacement module completely by pressing on the ejector
release buttons located at the middle of the module.
CAUTION : You must allow enough space for the ejector levers to open 90 degrees to avoid
potential injury.
4. Position the module in the chassis as follows:
a) Position the module in the slot. Rest the module on the chassis and ensure that the module is
within the slot guides.
b) Push the center of module face plate to slide the module inside the slot.
c) Keep pushing in the module slowly into the chassis until its rear connectors touch the mid-plane
surface. Visually inspect if the ejector claw is within the U channel bracket inside the chassis.
d) After the ejector jaw is in the correct position, grasp the ejector levers and rotate them
simultaneously inward until the ejector levers are flush with the face plate.
CAUTION : Be careful not to pinch your fingers as the ejector levers are rotating into locking
position.
e) While pressing down, simultaneously close the ejector levers to completely seat the module in the
midplane connector. The ejector levers are completely closed when they are flush with the front of
the module.
5. Install the fan module that you removed earlier. For more information on how to install a fan module,
see "Installing and Removing Fan Modules" on page 123.
Removing a Crossbar Fabric Module
About this task
To remove a crossbar module from the IBM c-type SAN Device without compromising the integrity and
availability of SANs, follow these steps:
Procedure
1. Shut down the crossbar fabric module by using the out-of-service xbarslot command (where slot
refers to the external crossbar fabric module slot number).
2. Remove the fan module that is over the crossbar fabric module to be removed. For more information
on how to remove a fan module, see "Installing and Removing Fan Modules" on page 123.
116 IBM Storage Networking SAN192C-6, SAN384C-6 and SAN768C-6: SAN192C-6, SAN384C-6 and
SAN768C-6 Installation, Service, and User Guide
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