Western Digital Ultrastar Data60 User Manual page 95

User Guide
a. Orient the CMA so that the elbow is on the left hand side.
b. Attach all three of the connectors to the brackets on the rails. There should be one at the
elbow side and two at the other end.
Figure 75: Lower CMA Orientation
c. Slowly slide the enclosure forward to ensure the arm is operating properly, then slide it back
into the rack.
a. Repeat these steps to install the upper arm with the elbow facing to the right.
Step 13 : Cable the CMA(s).
a. Unlatch the elbow side of the arm(s) by pressing the blue button labeled "push," and then
swing the arm(s) open.
b. Gather the SAS, power, and Ethernet cables for installation. Before cabling, note the
following routing patterns for best results:
Note: The CMA has two arms, labeled "upper" and "lower." The lower arm should
have the elbow on the left side and be installed first; the upper arm should have
the elbow on the right side and be installed last.
Note: Route the cables supported by the lower arm to IOM A (left hand side
looking at the rear). Second, route the cables supported by the upper arm to
IOM B (right hand side looking at the rear) in a "criss-cross" pattern. See the
Special Considerations for Cable Routing (page 154)
3. Support
3.7 CMA Replacement
for more information.
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