Table 11. Direct current power replaceable units
Description FRU part number Customer replaced
Direct current power supply 01AC311 Y
Direct current power cable 00AR087 Y
The procedure to remove and replace the DC power supply unit is the same as the
AC power supply procedure.
When replacing the DC power cable, follow the instructions for disconnecting
cables from the DC power distribution unit.
Verify environmental requirements
The environmental and electrical requirements for the physical site must be met to
ensure that your system works reliably.
Before installing a system, you must verify that adequate space in a suitable rack is
available. You must also ensure that the requirements for power and
environmental conditions are met.
This guide assumes that you have completed the physical planning for the
environment of your system. If you have not done the environmental planning for
your system, see the “Storwize V5000 Gen2 physical installation planning” topic in
the IBM Knowledge Center for Storwize V5000 Gen2.
Review enclosure location guidelines
Before you install the enclosures, you must be familiar with these enclosure
location guidelines.
Installing a control enclosure only
If you are installing a control enclosure only, follow these guidelines.
v Position the enclosure in the rack so that you can easily view it and access it for
servicing.
v Locate the enclosure low enough for the rack to remain stable.
v Ensure that you provide a way for two or more people to install and remove the
enclosure.
Installing a control enclosure and one or more expansion
enclosures
If you are installing a control enclosure plus one or more expansion enclosures,
follow these guidelines.
v Each system enclosure to be installed requires 2U of rack space.
v Each assembled enclosure weighs more than 18 kg. Provide sufficient space at
the front of the rack for two persons to carry the enclosure safely.
v Install all enclosures that constitute one system in contiguous positions in a rack.
Place the control enclosure in the middle of the rack.
Chapter 1. Before you begin the installation 15
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