Rear View Of The Storage Expansion Enclosure - IBM DCS3860 Installation, User's, And Maintenance Manual

Attention: If you are performing this procedure with the power turned
on, you must reinstall the fan assembly within 5 minutes. Otherwise, the
equipment could overheat.
Midplane
mounting bracket
Figure 56. Rear view of the storage expansion enclosure with the right fan assembly
removed
Note:
1) Each cable chain has a vertical mounting bracket that connects to the
midplane and a horizontal mounting bracket that connects to the drive
drawer.
2) The left and right cable chains are not interchangeable.
b. If power is applied and you performed step 1c on page 110, locate the
drive drawer with the Service Action Allowed LED lit. If power is not
applied, manually determine which cable chain you must disconnect. The
top cable chain is attached to drive drawer 1. The bottom cable chain is
attached to drive drawer 5.
CAUTION:
Verify that you have identified the correct drive drawer before removing
the cable chains. Removing the wrong drawer cable chains might cause
loss of data access.
c. Disconnect the right cable chain mounting bracket from the midplane.
Hold the orange handle (see Figure 57 on page 112), and pull the mounting
bracket completely out of the storage expansion enclosure. If necessary, use
a flashlight to see the orange handle.
Note: The vertical side of the cable chain (the end that is connecting the
midplane) should be removed before the horizontal side of the cable chain
(the end that is connecting to the drive drawer).
Cable
chain
Chapter 5. Replacing components
Drive
drawer
mounting
bracket
Service
action
allowed
LEDs
111