F5 Viprion Manual
Also see for Viprion: Platform guideGuide
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Contents
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About AC power suppliesThe VIPRION® platform contains up to four hot swappable power supplies. These power supplies can operate in oneof two modes: 120V and 220V, depending on the power source to which the power supplies are connected.The platform supports power redundancy, which ensures that the system is unaffected if a single power supply fails ina system containing more than one power supply.The VIPRION platform supports both symmetric and asymmetric power redundancy. Symmetric redundancy requiresan even number of power supplies, with half supplied by one power feed and half by another. If one power feed fails,the system is unaffected because the remaining supplies are sufficient for the entire load. With asymmetric redundancy(n + 1), it is not possible to split the supplies evenly between the power feeds. As a result, if one power feed fails, thewhole system can go down. In either type of redundancy, if a single power supply fails, the system is unaffected by theloss of a single supply. For more information about power requirements, see AC power requirements.Caution: This product is sensitive to electrostatic discharge (ESD). We recommend that when you installor maintain the unit, you use proper ESD grounding procedures and equipment.Caution: The socket outlet shall be installed near the equipment and shall be easily be accessible.Note: Depending on the model and revision type of the power supply, you may need either a Phillips or aslotted screwdriver to replace the power supply.Installing an AC power supplyIf a power supply is already installed in the bay where you are installing the replacement supply, disconnect the ACpower cord for the corresponding power supply from the back of the chassis and remove the existing supply from thechassis.In the event of a power supply failure, you can replace an AC power supply without powering down the system, providedthat there are still enough power supplies to equal one less than the number of running blades. For example, if the chassishas three blades, you can replace a power supply, as long as the platform has at least two power supplies operatingduring the replacement process.Important: If the chassis has only one blade operating, at least one power supply must be installed andoperating. In this situation, you must add the power supply to another power supply bay and then removethe old power supply.1. Using the indentations on either side of the LCD component, remove the front bezel from the chassis.With the front bezel removed, you can see the power supplies and the available power supply bays.2. Remove the existing supply, if one is installed.3. Slide the new power supply into the empty power supply bay.4. Lower the power supply eject lever to fully seat the power supply in its bay.5. Secure the power supply in its bay by tightening the screw in the middle of the power supply eject lever.The screw that secures the power supply to the chassis is captive and cannot be removed.6. Attach the power cord for the new power supply to the back of the unit, using the corresponding power supplyconnector.7. Replace the front bezel.40 | Platform Guide: VIPRION | Platform Maintenance |
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