F5 i5000 Series, Platform Manual, Page: 33 / 72

Platform Maintenance
About maintaining the platform
The i5000/i7000/i10000/i11000 Series platform contains components that you can replace individually
without exchanging the entire system. This platform contains these replaceable components:
• AC power supply
• DC power supply
• Fan tray (i7000/i10000 Series only)
• Storage drive (i7000/i10000 Series only)
About AC and DC power supplies
This platform supports up to two AC or DC hot swappable power supplies. Most platforms come with
only one power supply by default.
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 one power supply unit
(PSU), you must install a blank supply bracket into the empty power supply bay. 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 disconnect power from any unused PSUs.
Caution: Do not mix power supply unit (PSU) models. If two PSUs are installed in the same system, use
only PSUs of the same model.
Important: You should use only one power supply unit type (AC or DC) in a platform. AC and DC
interoperability is not supported.
Important: This product is sensitive to electrostatic discharge (ESD). F5
®
recommends that you use
proper ESD grounding procedures and equipment when you install or maintain the unit.
Note: The AC and DC power supply units (PSU) do not have an on/off switch. You can control the power
from the rack switch or the mains power source.
Note: After removing input power from any power supply unit, wait 30 seconds before reapplying input
power to the power supply unit.
About AC power supplies
This platform can support up to two AC power supplies. You can hot swap a power supply without
powering down the system if there are two installed, and one remains installed and operational during the
replacement process.
The platform supports power supply redundancy, which ensures that the system is unaffected if a single
power supply fails in a system containing more than one power supply.