Install the Cable Management Arm (Optional)
Follow this procedure to install the cable management arm (CMA), which you can
use to manage cables connected to the back of the storage server.
Note -
Before you install the CMA, ensure that the right-angle AC power cables
are long enough to connect to the rackmounted servers when routed through
the CMA.
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Unpack the CMA, which contains the following components.
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1
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Connector A
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2
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Front slide bar
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3
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Velcro straps (6)
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4
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Connector B
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5
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Connector C
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6
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Connector D
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7
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Slide-rail latching bracket (used with connector
D)
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8
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Back slide bar
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9
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Oracle Storage Server X7-2 (1U) flat cable
covers
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10
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Oracle Storage Server X7-2L (2U) round cable
covers
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Remove the flat cable covers and install the round cable covers.
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Lift up on the cable cover handle (the handle is colored green)
and open it 180 degrees to the horizontal position as shown in the
following figure [frames 1 and 2].
Note -
The CMA has three cable covers, two with two hinges (one of
which is shown in the following figure), and one with a single
hinge. All three cable covers are shown in the previous
figure.
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Apply upward pressure to the outside edge of each hinge connector
until the hinge connector comes off the hinge [frame 3].
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Repeat Step 2.a and Step 2.b to remove all three cable
covers.
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One at a time, position each round cable cover horizontally over
the hinges, and align the hinge connectors with the hinges.
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Using your thumb, apply downward pressure on each hinge connector
to snap the hinge connector into place.
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Swing the cable covers down and press down on the cable cover
handle to lock them into the closed position.
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Ensure that the six Velcro straps are threaded into the CMA as shown in
the CMA Components figure at the beginning of this procedure.
Note -
Ensure that the two Velcro straps located on the front slide bar are
threaded through the opening in the top of the slide bar. This prevents
the Velcro straps from interfering with the expansion and contraction of
the slide bar when the storage server is extended out of the rack and
returned into the rack.
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Extend the storage server approximately 13 cm (5 inches) out of the front
of the rack.
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Take the CMA to the back of the equipment rack, and ensure that you have
adequate room to work at the back of the storage server.
Note -
References to “left” or “right” in this
procedure assume that you are facing the back of the equipment
rack.
Note -
Throughout this installation procedure, support the CMA and do not
allow it to hang under its own weight until it is secured at all four
attachment points.
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To install the CMA connector A into the left slide-rail:
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Insert CMA connector A into the front slot on the left slide-rail
until it locks into place with an audible click [frames 1 and
2].
The connector A tab (see callout 1) goes into the slide-rail front
slot (callout 2).
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Gently tug on the left side of the front slide bar to verify that
connector A is properly seated.
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1
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Connector A tab
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2
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Left slide-rail front slot
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To install CMA connector B into the right slide-rail:
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Insert CMA connector B into the front slot on the right slide-rail
until it locks into place with an audible click [frames 1 and
2].
The connector B tab (see callout 1) goes into the slide-rail front
slot (callout 2).
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Gently tug on the right side of the front slide bar to verify that
connector B is properly seated.
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1
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Connector B tab
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2
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Right slide-rail front slot
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To install CMA connector C into the right slide-rail:
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Align connector C with the slide-rail so that the locking spring
(callout 1) is positioned inside (storage server side) of the right
slide-rail [frame 1].
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1
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Connector C locking spring
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Insert connector C into the right slide-rail until it locks into
place with an audible click [frames 2 and 3].
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Gently tug on the right side of the CMA back slide bar to verify
that connector C is properly seated.
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To prepare CMA connector D for installation, remove the tape that secures
the slide-rail latching bracket to connector D and ensure that the latching
bracket is properly aligned with connector D [frames 1 and 2].
Note -
The CMA is shipped with the slide-rail latching bracket taped to
connector D. Remove the tape before you install this connector.
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To install CMA connector D into the left slide-rail:
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While holding the slide-rail latching bracket in place, insert
connector D and its associated slide-rail latching bracket into the
left slide-rail until connector D locks into place with an audible
click [frames 1 and 2].
Note -
When inserting connector D into the slide-rail, the preferred
and easier method is to install connector D and the latching
bracket as one assembly into the slide-rail.
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Gently tug on the left side of the CMA slide bar to verify that
connector D is properly seated.
Note -
The slide-rail latching bracket has a green release tab. Use
this tab to release and remove the latching bracket so that you
can remove connector D.
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Gently tug on the four CMA connection points to ensure that the CMA
connectors are fully seated before you allow the CMA to hang by its own
weight.
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To verify that the slide-rails and the CMA are operating properly before
routing cables through the CMA:
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Ensure that the rack anti-tilt bar is extended to prevent the rack
from tipping forward when the server is extended.
![Caution Caution](graphics/caution.gif) | Caution -
To reduce the risk of personal injury, stabilize the rack
cabinet and extend the anti-tilt bar before extending the server
from the rack. For instructions on stabilizing the rack, see
Stabilize the Rack.
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Slowly pull the server out of the rack until the slide-rails reach
their stops.
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Inspect the attached cables for any binding or kinks.
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Verify that the CMA extends fully with the slide-rails.
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To return the storage server to the rack:
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Simultaneously pull and hold the two green release tabs (one on
each side of the storage server) toward the front of the storage
server while you push the storage server into the rack. As you push
the storage server into the rack, verify that the CMA retracts
without binding.
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To pull the green release tabs, place your finger in the center of
each tab, not on the end, and apply pressure as you pull the tab
toward the front of the server.
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Continue pushing the storage server into the rack until the
slide-rail locks (located on the front of the storage server) engage
the slide-rail assemblies.
You hear an audible click when the storage server is in the normal
rack position.
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Connect cables to the storage server, as required.
Instructions for connecting the storage server cables are provided in
Cabling the Storage Server.
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Open the CMA cable covers, route storage server cables through the CMA
cable troughs, close the cable covers, and secure the cables with the six
Velcro straps.
Route the cables through the cable troughs in this order:
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First through the front-most cable trough.
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Then through the small cable trough.
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Then through the back-most cable trough
![Caution Caution](graphics/caution.gif) | Caution -
When securing the cables with the Velcro straps located on the
front slide bar, ensure that the Velcro straps do not wrap
around the bottom of the slide bar. Otherwise, expansion and
contraction of the slide bar might be hindered when the server
is extended from the rack and returned to the rack.
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Ensure that the secured cables do no extend above the top or below the
bottom of the storage server to which they are attached; otherwise, the
cables might snag on other equipment installed in the rack when the storage
server is extended from the rack or returned to the rack.
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If necessary, bundle the cables with additional Velcro straps to ensure
that they stay clear of other equipment. If you need to install additional
Velcro straps, wrap the straps around the cables only, not around any of the
CMA components; otherwise, expansion and contraction of the CMA slide bars
might be hindered when the storage server is extended from the rack and
returned to the rack.