F5 8900, Platform Manual

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Platform Maintenance
About platform maintenance
The 8900 platform contains several components that can be replaced individually without exchanging the
entire system. This platform contains the following replaceable components:
• AC power supply
• DC power supply
• Fan tray
• Hard drive
About AC power supplies
BIG-IP
®
platforms can support up to two AC power supplies. Some platforms come with only one power
supply by default. You can hot swap power supplies if there are two installed in your system.
Figure 7: A power supply partially removed from the platform
The platform supports power redundancy, which ensures that the system is unaffected if a single power
supply fails in a system containing more than one power supply.
Caution: Running without power supplies installed in all available bays in the platform can affect cooling
and electromagnetic interference (EMI). If you need to run the unit with fewer power supplies, you must
install a blank supply bracket into any empty power supply bays. The blank supply bracket is required to
maintain proper airflow in the system. If you do not have a blank supply bracket, leave all supplies installed
and unplug any unused power supplies.
Caution: As a safety precaution, the socket outlet must be installed near the equipment and be easily
accessible.