Installing An Optional Host Port Adapter; Removing A Controller - IBM DS3500 Installation, User & Maintenance Manual

Installing an optional host port adapter

Attention:
subsystem contains two controllers, you must make sure that an identical host port
adapter is installed in the other controller.
To install a host port adapter, complete the following steps.
Attention:
before you remove the controller from the chassis. For the correct shutdown
sequence, see "Turning off the storage subsystem" on page 81.
Figure 81. Removing a controller
In the United States, IBM has established a return process for reuse, recycling,
or proper disposal of used batteries. For information on proper disposal of these
batteries, contact IBM at 1-800-426-4333.
If you install a host port adapter in a controller and the storage
To prevent data loss, you must shut down the storage subsystem
1. Read the safety information that begins on page xiii and "Best practices
guidelines" on page 5.
2. Turn off the storage subsystem (see "Turning off the storage subsystem" on
page 81).
3. Disconnect the cables that are connected to the controller.
4. Remove the controller from the chassis.
Release
levers
a. Open the two release levers as shown in the illustration. The controller
moves out of the bay approximately 0.6 cm (0.25 inch).
b. Pull the controller out of the bay.
c. Place the controller on a level surface.
5. Remove the cover (see "Removing and installing a cover" on page 94).
6. Remove the two screws from the cover plate. Rotate the cover plate to release
the alignment tab and remove the cover plate from the controller.
Chapter 5. Replacing components
101