5190/5194 Modular Tape Subsystem Manual

Adding, Removing, and Replacing CRUs
5190/5194 Modular Tape Subsystem Manual—426878-002
6-13
Replacing a 3216 Tape Controller
Preparing for Replacement
Use this procedure to prepare for replacement:
1. Shut down the application software that uses the tape drives controlled by the
controller to be replaced.
2. Use PUP to shut down the tape drives.
1>PUP
#DOWN $TAPE1
#DOWN $TAPE2
#EXIT
Removing a 3216 Logic Board
Use this procedure to remove a 3216 logic board:
1. Open the cabinet door so that you can access the logic board section. Locate the
slot that contains the logic board you are to remove. Logic boards are installed in
slots 60 through 69 of system and I/O cabinets.
2. Loosen the thumbscrew on each board ejector. See Figure 1-6 on page 1-12.
3. Lift both ejectors at the same time to disconnect the logic board from the
backplane.
4. Grasp the handle (or the ejectors if the board has no handle) of the logic board and
slide the board partway out of the slot. (Hold the lower ejector out of the way so
that it does not get caught on the fan below.) If the board has no handle, hold the
board by the top and bottom of the board. If the board has a handle, use your other
hand to support the weight of the board. Slide the board all the way out of the slot.
Lay the board down on a flat surface such as a table.
5. Close the cabinet door.
You are now ready to install a replacement 3216 logic board.
Installing a 3216 Logic Board
Use this procedure to install a 3216 logic board:
1. Open the cabinet door and locate the slot in which to install the logic board. Make
sure that the logic board label matches the slot label (I/O).
2. Align the lower edge of the logic board with the slot. Then slide the logic board into
the slot. Press on the front of the logic board so the connectors on the back of the
board make contact with the backplane.
Do not force the board into the slot. If the board does not seat easily, the board
might be in the wrong slot or there might be a problem with the board or the
backplane.
3. Press both ejectors into place at the same time to secure the board.