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Manual Chapter: Platform Maintenance
Manual Chapter
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Platform Maintenance

About maintaining the platform

The VIPRION® 4800 Series platform contains several 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
  • Bezel (with LCD component)
  • Blades
  • Cable managers
  • Chassis filter
  • Power supply filter
  • Annunciator cards

About AC power supplies

The VIPRION® 4800 platform supports up to four hot swappable power supplies.

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. In the event of a power supply failure, you can replace a failed DC power supply without powering down the system. For maintenance, you can replace a working power supply, provided that there are working redundant supplies installed in the system. There must be two or more working power supplies if 1-3 blades are installed. There must be three or more working power supplies if 4-8 blades are installed. The system can operate without redundancy at max capacity with two of the four power supplies installed.

AC power supply

An example of an AC power supply

CAUTION:
Running without all power supplies installed in the platform can affect cooling and electromagnetic interference (EMI). If a power supply fails, you can leave it installed in the chassis and remove the power cord; the system, however, will continue to log errors. If you need to run the unit without all power supplies installed, you must install a blank supply bracket into any empty power supply slots. The blank supply bracket is required to maintain proper airflow in the system.
CAUTION:
The power socket outlet should be installed near the equipment and easily accessible.
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: Depending on the model and revision type of the power supply, you might need either a Phillips or a slotted screwdriver to replace the power supply.

Installing an AC power supply

If a power supply is already installed in the bay where you are installing the replacement supply, disconnect the AC power cord for the corresponding power supply from the back of the chassis and remove the existing supply from the chassis.
You can add or replace an AC power supply as part of routine maintenance or in the event of a power supply failure. You do not need special tools to replace the power supply.
  1. Remove the bottom bezel from the chassis by pulling straight out using the indentations on both sides.
    With the bottom bezel removed, you can see the power supplies and the available power supply bays. The bays that do not contain power supplies will have an insert labeled "BLANK" installed.
  2. Remove the existing supply, if one is installed.
    1. Loosen the captive screw on the power supply by turning it counterclockwise with a #2 Phillips screwdriver, if necessary.
      Loosening screw
    2. Grasp the eject lever and pull straight toward you to eject the power supply from the chassis.
      Ejecting psu
  3. Slide the new power supply into the empty power supply bay.
    The eject lever must be in the open position when you insert the power supply into the bay. The lever engages as the supply is nearly seated.
  4. Raise the power supply eject lever to fully seat the power supply in its bay.
    The power supply powers on when it connects to the backplane.
  5. Secure the power supply in its bay by tightening the screw on the power supply eject lever.
    Note: The screw that holds the ejector handle in place is captive and cannot be removed from the assembly.
  6. Attach the power cord for the new power supply to the back of the unit, using the corresponding power supply connector.
  7. Replace the bottom bezel.

About DC power supplies

The platform supports power redundancy, which ensures that the system is unaffected if a single power supply fails in a system with a working redundant supply. For redundant operation, there must be two or more working power supplies if 1-3 blades are installed, and there must be three or more working power supplies if 4-8 blades are installed. For maintenance, you can replace a working power supply, provided that there are working redundant supplies installed in the system.

The DC power supply does not have an on/off switch. You can control the power from the rack switch or the DC power source.

DC power supply

VIPRION 4800 DC power supply

CAUTION:
Running without all power supplies installed in the platform can affect cooling and electromagnetic interference (EMI). If a power supply fails, you can leave it installed in the chassis and remove the power cord; the system, however, will continue to log errors. If you need to run the unit without all power supplies installed, you must install a blank supply bracket into any empty power supply slots. The blank supply bracket is required to maintain proper airflow in the system.
CAUTION:
Before you begin to work with one of these platforms, refer to the DC-powered equipment environmental warnings for this platform and review any safety requirements for the facilities where the DC-powered platforms will be installed.
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.
Important: The platform must be installed in a RESTRICTED ACCESS LOCATION, such as a central office or customer premises environment.
Note: All copper grounding cable must meet all appropriate safety standards and local electric codes.
Note: You should coat bare conductors with an appropriate antioxidant compound before you make crimp connections. You should bring all unplated connectors, braided strap, and bus bars to a bright finish and then coat them with an antioxidant before you connect them.
Note: The platform must be grounded to a common bonding network (CBN).
Note: The battery return terminals on the platform are in an isolated DC return (DC-I) configuration.

Installing a DC power supply

You can add or replace a DC power supply as part of routine maintenance or in the event of a power supply failure. You do not need special tools to replace the power supply.
  1. Remove the bottom bezel from the chassis by pulling straight out using the indentations on both sides.
    With the bottom bezel removed, you can see the power supplies and the available power supply bays. The bays that do not contain power supplies will have an insert labeled "BLANK" installed.
  2. Remove the existing supply, if one is installed.
    1. Loosen the captive screw on the power supply by turning it counterclockwise with a #2 Phillips screwdriver, if necessary.
      Loosening screw
    2. Grasp the eject lever and pull straight toward you to eject the power supply from the chassis.
      Ejecting psu
  3. Slide the new power supply into the empty power supply bay.
    The eject lever must be in the open position when you insert the power supply into the bay. The lever engages as the supply is nearly seated.
  4. Raise the power supply eject lever to fully seat the power supply in its bay.
    The power supply powers on when it connects to the backplane.
  5. Secure the power supply in its bay by tightening the screw on the power supply eject lever.
    Note: The screw that holds the ejector handle in place is captive and cannot be removed from the assembly.
  6. Replace the bottom bezel.

About the fan tray

The VIPRION® 4800 Series platform has a removable fan tray that is designed to maintain airflow throughout the chassis. You can change or replace the fan tray as part of the routine maintenance of the unit, or in the event of a fan failure. The fans in the fan tray run constantly while the unit is on. Over time, the fans can wear out, requiring you to replace the fan tray.

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.
An example of a fan tray

The VIPRION 4800 Series platform fan tray

Replacing the fan tray

You can replace the fan tray as part of routine maintenance or in the event of a fan tray failure. You do not need special tools to replace the fan tray. You do not need to power down the unit when replacing the fan tray; however, F5® highly recommends that you do not leave the unit operating without a fan tray for longer than 30 seconds.
CAUTION:
Operating the unit without a fan tray for more than 30 seconds might cause permanent damage.
  1. Remove the top bezel from the chassis by pulling straight out using the indentations on both sides.
    Note: Failure to use the indentations could result in pinched fingers.
    With the top bezel removed, you can see the fan trays.
  2. Turn the compression screws on the fan tray, until the locking indicator changes color from green (locked) to red (unlocked).
    Compression screws (locked and unlocked)
  3. Extend the fan tray ejector handle by pressing the left side of the handle into the unit.
    Press ejector handle
  4. Grasp the ejector handle and remove the fan tray from the chassis by pulling straight toward you.
    Press ejector handle
  5. Place the new fan tray into the fan tray bay.
  6. Push the fan tray into the chassis until it is seated firmly in the fan tray bay.
    Once seated, the fan tray automatically powers up and begins circulating air through the chassis.
  7. Lock the fan tray by pressing the ejector handle back into place.

About the storage drives

By default, VIPRION® B4000 blades contain one storage drive. You can remove the drive from the blade only if your company's security requirements necessitate it when performing a Return Material Authorization (RMA) on the platform.

Important: F5® supports replacement of hard disk drives (HDD) only.
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.

Replacing a storage drive assembly on a B4300 blade

You can change or replace a drive assembly in a VIPRION® B4300 Series blade as part of the routine maintenance of the unit or in the event of a drive failure.
  1. Disconnect all cables and remove any optical modules from the blade that contains the drive assembly to be replaced.
  2. Remove the blade from the chassis.
  3. Remove the existing drive assembly, if one is installed:
    1. Loosen the drive assembly screws (a) by turning them counterclockwise with a Phillips screwdriver, if necessary.
      Note: These screws are captive and cannot be removed from the assembly.
      Removing old drive
    2. Remove the SAS cable assembly screws (b) by turning them counterclockwise with a Phillips screwdriver.
    3. Grasp the drive assembly screw on the end, lift the drive assembly slightly, and then pull straight out to remove the drive assembly from the blade.
  4. Slide the new drive assembly into the bay and connect it to the SAS cable assembly.
    Install new drive
  5. Tighten all screws into place using 4 inch-pounds (0.45 Newton-meters) of torque.
    The drive assembly is connected to the system when you tighten all screws completely.
  6. Slide the blade back into the chassis.

About the bezel (with LCD component)

The top bezel on the front of the VIPRION® 4800 chassis includes an LCD component that enables you to access several functions associated with the platform, such as configuring the management port for the system.

Replacing the bezel (with LCD component)

You can replace the top bezel on the chassis in the event of an LCD component failure. You do not need special tools to replace the bezel.
  1. Remove the original bezel by grasping the bezel on either side, using the indentations provided.
    Note: Failure to use the indentations could result in pinched fingers.
    Removing bezel
  2. Pick up the replacement bezel using the indentations provided.
  3. Align the guide pins on the bezel to the corresponding holes in the chassis and push in on both sides until the bezel is secured to the chassis.
    Pressing bezel into place

About the chassis and power supply filters

The VIPRION® 4800 platform includes replaceable chassis and power supply filters. You must remove the bottom bezel to access these filters. The chassis filter is located above the power supplies and below the blade slots. The power supply filter is located on the bottom bezel.

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: F5® strongly recommends changing the filters every three months. The filters include a label on which you can record the date that the filters need replacing.

Replacing the chassis filter

F5® recommends replacing the chassis filter every three months.
  1. Remove the bottom bezel from the chassis by pulling straight out using the indentations on both sides.
    The chassis filter is located between the blade slots and the power supplies.
  2. Pull straight out to remove the chassis filter.
    Loosening screw
  3. Write the new replacement date (three months from the installation date) on the new chassis filter.
  4. Insert the replacement chassis filter, with the label on the left side and oriented right side up.
  5. Replace the bottom bezel.

Replacing the power supply filter

F5® recommends replacing the power supply filter every three months.
  1. Remove the bottom bezel from the chassis by pulling straight out using the indentations on both sides.
    The power supply filter is attached to the bottom of the bottom bezel.
  2. Remove the power supply filter from the bezel by pressing the ejector latch.
    Removing psu filter
  3. Write the replacement date (three months from the installation date) on the new power supply filter.
  4. Insert the replacement power supply filter into the bottom bezel, with the label facing you and on the same side as the part number.
    Removing psu filter
  5. Replace the bottom bezel.

About the annunciator cards

The VIPRION® 4800 platform includes two annunciator cards. You can change or replace the cards in the event of a failure.

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.

Replacing the annunciator cards

Before you replace the annunciator card, we recommend that you back up the configuration on the system. Backing up your configuration prevents loss of data if, for any reason, the installation of the annunciator card is not successful.
You can replace the annunciator card in the event of a card failure. You do not need special tools to replace the annunciator card.
CAUTION:
You should not remove both annunciator cards from the system when it is operating and passing traffic. This causes the blades to reboot. Blades will not work until a functional annunciator card is present.
CAUTION:
If an annunciator card fails, you can hot swap the failed card with a replacement card. The system continues to function properly as long as one working annunciator card is installed.
  1. Remove the top bezel from the chassis by pulling straight out using the indentations on both sides.
    Note: Failure to use the indentations could result in pinched fingers.
  2. Grasp both release buttons on the annunciator card, squeeze the button on the right side, and pull the old card straight out toward you.
    Annunciator card
  3. Slide the replacement annunciator card in until it is fully seated.
    You do not have to press the release button when you insert the card.
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