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Guide pin
Figure 56. Removing and replacing an Environmental Service Module (ESM)
9. Unpack the new ESM CRU. Save all packing material in case you need to
return the failed ESM CRU.
Note: The new ESM CRU comes with an instruction sheet and label sheet.
The instruction sheet provides instructions on placing the appropriate
labels on the ESM CRU to correctly mark the LEDs and SFP ports. The
label sheet contains the peel-off labels that you actually place on the
ESM CRU.
10. Using the information provided on the instruction sheet, place the labels on the
ESM CRU to correctly mark the LEDs and SFP ports.
11. Install the new ESM by sliding it into the empty slot. Be sure that the levers are
pulled straight out as you slide the ESM into the storage expansion enclosure.
As you slide the ESM into the empty slot, make sure the guide pins on the
side of the ESM fit into the notches on the sides of the ESM bay. After the
guide pins fit into the notches and ESM fits snugly into the bay, push the lever
upward or downward 90° to fully latch the ESM into place, depending on
whether you are inserting the ESM into the right or left ESM bay.
Attention:
The left and right ESMs are seated in the EXP810 chassis in
opposite orientations. If you cannot fully insert the ESM into the ESM bay, flip it
180° and reinsert it. Make sure that the levers lock into place in the storage
expansion enclosure chassis.
12. Reinsert the SFP modules and reconnect the fibre-channel cables to their
original locations.
13. Check the Power and Fault LEDs on the new ESM for the following:
v If the Power LED is off, the ESM might not be inserted correctly.
v If the Fault LED is lit, if the Power LED is off, or if any other Fault LEDs are
lit, see "Solving problems" on page 125 or call IBM Support.
Lever
Chapter 5. Installing and replacing components
Notch
117
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