vSufficient space to install the storage subsystem
vEnough stability to support the weight of the fully configured storage subsystem
and associated systems. See “Weight” on page 19 for weight specifications.
Make sure that all requirements, such as floor space, air conditioning, and electrical
service, have been met. Other site preparation activities include the following tasks:
vTomake sure that there is enough room to move around the cabinet and install
modules, clear space at the installation area.
vInstall uninterruptible power supply (UPS) devices.
vIf applicable, install host servers with Fibre Channel host bus adapters (HBAs),
Fibre Channel switches, or other devices.
vRoute interface cables from the Fibre Channel HBA ports in the hosts or Fibre
Channel switches to the installation area.
vRoute main power cords to the installation area.
Continue with “Preparing the rack cabinet.”
Preparing the rack cabinet
Important: Before you install the storage subsystem in a rack cabinet, keep in mind
the following considerations:
vReview the documentation that comes with your rack enclosure for safety and
cabling considerations.
vInstall the storage subsystem in an environment with a temperature of 22° C (72°
F). See “Environmental requirements and specifications” on page 20 for details.
vFor proper airflow, do not block the air vents; allow for at least 15 cm (6 in.) of air
space.
vFor optimal rack stability, load the rack starting at the bottom.
vIf you install multiple components in the rack, do not overload the power outlets.
vAlways connect the storage subsystem to a properly grounded outlet.
vAlways 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
storage subsystem:
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 offall 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.”
Installing the support rails
Important: Duplicate copies of the rack mounting templates are provided in
Appendix B, “Rack mounting templates,” on page 167. If you want to
tear out the templates from this document, use the copies in
Appendix B, “Rack mounting templates,” on page 167.
32 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide