IBM System Storage DS3300, Installation, User'S, And Maintenance Manual

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Attention: Static electricity can damage the storage subsystem and other
electronic devices. To avoid damage, keep static-sensitive devices in their
static-protective packages until you are ready to install them.
6. Unpack the new controller. Save all packing materials in case you have to
return the new controller.
Attention: Handle and install I/O cables (such as SAS and Ethernet)
correctly to avoid degraded performance or loss of communication with
devices. When you work with I/O cables, do not pinch them, step on them, or
locate them in aisles or walkways. Do not overtighten the cable straps or bend
the cables to a radius smaller than 38 mm (1.5 in.).
7. Disconnect all attached interface cables from the failed controller. Be sure to
label each cable so that you can reconnect it correctly to the new controller.
8. If the controller has failed in a single-controller storage subsystem, turn off the
power immediately (see “Performing an emergency shutdown” on page 56 for
instructions.)
9. Remove the controller from the chassis.
a. On the left side of the controller, press the orange release tab to the right
just enough to release the handle; then, rotate the handle upward.
b. Slowly pull the handle away from the chassis to remove the controller from
the bay, as shown in Figure 37.
c. Place the controller on a level surface.
Handle
Guide pin Notch
Figure 37. Removing and replacing a controller
Chapter 5. Replacing components
67