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Ensure that all requirements, such as floor space, air conditioning, and electrical
service, have been met. Other site preparation activities include the following tasks:
v Make sure that heat output, air flow, and cooling concerns are addressed as
specified in “Heat output, airflow, and cooling” on page 18.
v Make sure that there is enough room to move around the cabinet and install
modules; clear space at the installation area.
v Install uninterruptible power supply (UPS) devices.
v If applicable, install host servers with fibre channel host bus adapters (HBAs),
fibre channel switches, or other devices.
v Route interface cables from the fibre channel HBA ports in the hosts or fibre
channel switches to the installation area.
v Route main power cords to the installation area.
Continue
with “Preparing the rack cabinet.”
Preparing the rack cabinet
Important: Before you install the DS4500 in a rack cabinet, keep in mind the
following considerations:
v Review the documentation that comes with your rack enclosure for safety and
cabling considerations.
v Install the DS4500 in a recommended 22° C (72° F) environment. See
“Environmental requirements and specifications” on page 14 for details.
v To ensure proper airflow, do not block the air vents; ensure at least 15 cm (6 in.)
of air space.
v To ensure rack stability, load the rack starting at the bottom.
v If you install multiple components in the rack, do not overload the power outlets.
v Always connect the storage subsystem to a properly grounded outlet.
v Always connect the IBM-certified rack power distribution units (PDUs) to at least
two independent power circuits or sources.
Complete
the following steps to prepare the rack cabinet before you install the
DS4500:
1. Move, unpack, and level the rack at the installation site (if needed).
2. Remove the external rack panels.
3. If necessary, stop all I/O activity to the devices in the rack.
4. If necessary, turn off all drive enclosure and rack power. Disconnect existing
power, network, and other external cables.
5. Install any additional interface cables and power cables.
After you have completed these steps, continue with “Installing the support rails” on
page 27.
26 IBM TotalStorage DS4500 Fibre Channel Storage Subsystem: Installation, User’s, and Maintenance Guide