5. At the back of the DS4800 Storage Subsystem, use an adhesive note to label
each of the controllers. Controller A is in the upper slot; controller B is in the
lower slot. Figure 19 shows the locations of the controllers and controller levers.
6. Remove the controllers. Figure 19 shows the controller locations and the
controller levers.
7. After you have removed the components, record the serial number, machine
type and model number, and MAC addresses for your DS4800 Storage
Subsystem in Appendix B, “Records,” on page 187. The serial number, machine
type, and model number are located on top of each RAID controller unit. The
MAC addresses are located near the Ethernet ports on each RAID controller, as
shown in Figure 103 on page 187. You may not be able to easily access this
information after you install the DS4800.
8. Go to “Installing the DS4800 on the support rails.”
Installing the DS4800 on the support rails
This section provides instructions on how to install the DS4800 in a rack cabinet.
Attention: If you have not yet done so, record the serial number, machine type
and model number, and MAC addresses for your DS4800 Storage Subsystem in
Appendix B, “Records,” on page 187, as described in step 7.
Use the following procedure to install the DS4800 Storage Subsystem on support
rails in a rack cabinet. To mount a storage subsystem in the rack cabinet, all
support rails must be installed in their correct locations. If you need to install the
rails, see “Installing the support rails” on page 33.
CAUTION:
Never install components or other equipment in the top half of a rackmount
cabinet while the bottom half is empty. Doing so can cause the cabinet to
become top-heavy and to tip over. Always install hardware in the lowest
available position in the cabinet.
RAID
controller A
Levers
in released position
RAID
controller B
ds48028
Figure 19. Removing the controllers
42 IBM System Storage DS4800 Storage Subsystem: Installation, User’s, and Maintenance Guide
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