IBM TotalStorage SAN140M, Installation And Service Manual

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219 Chapter 5: Removal and replacement procedures (RRPs)
ATTENTION! To avoid causing machine errors or damage while working on
the director, follow ESD procedures by connecting a grounding cable to the
director chassis and wearing an ESD wrist strap.
4. Follow ESD procedures by attaching a wrist strap to the director
chassis and your wrist ( Figure 69 ).
5. Identify the defective port card from the amber LED on the card
or failure information at the management server Hardware View.
6. Block communication to the defective port card ( Blocking and
unblocking ports on page 181).
7. If necessary, remove the RFI shield.
8. Disconnect the fiber-optic jumper cable from each port on the
defective card as follows. Repeat this step for all four ports.
a. Pull the keyed LC connector free from the port optical
transceiver.
NOTE: If name server zoning is implemented by port number, a
change to the director fiber-optic cable configuration disrupts zone
operation and may incorrectly include or exclude a device from a
zone.
b. Place a protective cap over the cable connector. If required,
label jumper cables to ensure correct connections when the
port card is replaced.
ATTENTION! When fiber-optic cables are disconnected from port card
optical transceivers, ensure protective plugs are inserted into the receptacles.
This prevents damage to sensitive components and prevents injury to the eye
if the laser is viewed directly.
c. Insert a protective plug into the optical transceiver.
NOTE: The spring-loaded (lock) Allen screws are colored yellow and are
mounted near yellow "lock" symbols on the frame.
9. The port card is secured to the director chassis with two captive
Allen screws. One screw (yellow) is spring-loaded and locks the
port card in place. The other screw (uncolored) cams the port
card into and out of the backplane.