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Manual Chapter: VIPRION Platform Maintenance
Manual Chapter
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The VIPRION® platform contains several field replaceable units (FRUs). The FRUs provide the ability to replace parts of the system without replacing the complete system. The FRUs currently available for this platform are:
The VIPRION chassis supports up to four blades. When you initially receive the platform, the slots that can contain these blades are filled with blanks, which are designed to protect the unit from dust and other particles when a slot is not in use. To add a new blade, you first remove the blank from the corresponding slot and then insert the correct blade.
Note: We recommend that you install blades into the chassis starting at the top slot and then into each subsequent slot moving down.
Warning: This product is sensitive to electrostatic discharge (ESD). We recommend that when you install or maintain the unit, you use proper ESD grounding procedures and equipment.
The first part of this process requires that you remove the blank that is located in the slot in which you want to install the blade. If the slot does not have a blank, you can skip this procedure.
Turn the compression screws, located on either side of the blank, until the locking indicator changes from green (locked) to red (unlocked). (See Figures 5.1 and 5.2, on page 5-2.)
Carefully lift the blade and align the guide grooves on either side with the corresponding grooves on the interior of the slot as shown in Figure 5.4.
Important: Verify that the blade is aligned with these grooves; otherwise, the blade does not seat correctly in the platform.
When the eject levers engage the chassis, press the eject levers on the blade towards the center of the blade until they are locked in place as shown in Figure 5.5, on page 5-4.
Turn the compression screws clockwise until they are completely secured to the platform in the green (locked) position, as shown in Figure 5.1, on page 5-2.
Note: The locking indicator on the compression screws turns green before the screws are completely secured to the platform; however, we highly recommend that you continue turning the screws until they are firmly secured.
The VIPRION platform has a removable fan tray that is designed to maintain the airflow throughout the chassis. The fans in the fan tray run constantly while the system is on. Over time, the fans can wear out, requiring you to replace the fan tray. You can change or replace the fan tray as part of the routine maintenance of the platform or in the event of a fan failure.
You do not need special tools to replace the fan tray. You can perform this maintenance while the platform is running. You do not need to power down the platform when replacing the fan tray; however, we highly recommend that you do not leave the platform operating without a fan tray for longer than 30 seconds.
Note: Use only the fan tray handle to seat the fan tray in the chassis. Using the edges of the fan tray could result in pinched fingers, as a fully-seated fan tray is nearly flush with the other chassis components.
The VIPRION platform can contain up to four power supplies. These power supplies can operate in one of two modes: 120V and 220V, depending on the power source to which the power supplies are connected.
The VIPRION platform supports both symmetric and asymmetric power redundancy. Symmetric redundancy requires an 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, the whole system can go down. In either type of redundancy, if a single power supply fails, the system is unaffected by the loss of a single supply.
The platform can contain a total of four power supplies. By default, the platform includes four power supplies, one installed in each power supply bay.
Attach the power cord for the new power supply to the back of the unit, using the corresponding power supply connector.
The design of the VIPRION platform is such that you can remove a power supply from the chassis without powering down the system, provided that there are still enough power supplies to equal one less than the number of running blades. For example, if the chassis has three blades, you can replace a power supply, as long as the platform has at least two power supplies operating during the replacement process.
Important: If the chassis has only one blade operating, at least one power supply must be installed and operating. In this situation, you must add the power supply to another power supply bay and then remove the old power supply.
The LCD component enables you to access several functions associated with the platform, such as configuring the management port for the system.
To remove the original LCD component, grasp the LCD component on either side, using the indentations provided.
Note: Failure to use the indentations could result in pinched fingers.
Press the LCD component onto the corresponding connections at the front of the platform until it clicks into place as shown in Figure 5.7.
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