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Introduction

Overview

This guide demonstrates how to replace a Powerblade cable in an Open Compute V3 server. == Acronyms and Terms == * HDD - Hard Disk Drive * Mini-SAS - Mini Serial Attached SCSI * SCSI - Small Computer System Interface === Additional Notes === It is not absolutely necessary to remove trays from the Open Vault chassis to replace the Powerblade cable. This section of the replacement guide may be treated as a preference.

  1. The server can be powered off remotely or on the hardware itself.
    • The server can be powered off remotely or on the hardware itself.

    • Remote Power Down: Login to the server to power it off.

    • shutdown -h now;exit

    • Hardware Power Down: Press and hold the power switch for at least three seconds, as annotated.

  2. Pull the Mini-SAS cable from the nylon cable management clip. Pull the Mini-SAS cable from the nylon cable management clip.
    • Pull the Mini-SAS cable from the nylon cable management clip.

  3. Disconnect the Mini-SAS cable from the storage tray. Use the pull-tab to disconnect the cable, as shown.
    • Disconnect the Mini-SAS cable from the storage tray.

    • Use the pull-tab to disconnect the cable, as shown.

  4. Locate the two tray release levers. These release levers secure the tray to the storage chassis.
    • Locate the two tray release levers.

    • These release levers secure the tray to the storage chassis.

    • Press both tray release levers upwards.

    • Pushing the tray release handles inwards may assist in actuating the tray release levers.

    • Pull the two release handles that snap outward.

    • Slide the tray forward until fifteen hard disk drives can be seen.

  5. Press the two Powerblade cable retention tabs. Pull the cable towards the rear until it unseats from its connector. Pull the cable towards the rear until it unseats from its connector.
    • Press the two Powerblade cable retention tabs.

    • Pull the cable towards the rear until it unseats from its connector.

  6. Open fifteen hard disk drive cages. Press the green retention tab on the hard disk drive cage. Rotate the cage to access the hard disk drive.
    • Open fifteen hard disk drive cages.

    • Press the green retention tab on the hard disk drive cage.

    • Rotate the cage to access the hard disk drive.

  7. Push each hard disk drive away from the pivot point of each gate. This will unseat the drives from their SATA and power connectors. Remove each hard disk drive.
    • Push each hard disk drive away from the pivot point of each gate.

    • This will unseat the drives from their SATA and power connectors.

    • Remove each hard disk drive.

  8. Place the hard disk drives on a work bench or cart.
    • Place the hard disk drives on a work bench or cart.

    • It may be beneficial to rest the hard disk drives on an static-free mat to minimize risk of damaging the drives.

    • Because the drives will be reinstalled in the tray, it is beneficial to place them in a logical order to hasten their reinstall.

  9. Close the hard disk drive cages. Press in the green tab on each drive gate.
    • Close the hard disk drive cages.

    • Press in the green tab on each drive gate.

    • Press the gate downwards. Release the green tab to lock the gate.

  10. Locate the black thumbscrew in the middle-rear of the storage tray. Loosen the thumbscrew. Loosen the thumbscrew.
    • Locate the black thumbscrew in the middle-rear of the storage tray.

    • Loosen the thumbscrew.

  11. Press down two storage tray locking tabs.
    • Press down two storage tray locking tabs.

    • The storage tray locking tabs are located towards the left-rear and right-rear of the tray.

    • Pull the tray away from the Open Rack.

    • If depressing the tray locking tabs do not release the tray, push the tray into the chassis about 10cm. Extend the tray again until its about 5cm from its full extension. Press the locking tabs downwards and pull the tray.

  12. Place the tray upside down on a work bench so that the tray circuit boards are exposed, as shown.
    • Place the tray upside down on a work bench so that the tray circuit boards are exposed, as shown.

    • Remove the remaining storage tray.

    • The process to remove the second tray is identical to removing the first tray.

  13. Remove the six chassis fans. Unscrew the thumbscrew on each of the fans.
    • Remove the six chassis fans.

    • Unscrew the thumbscrew on each of the fans.

    • Grasp the fan handle and slide it to the rear. Lift the fan upwards.

  14. Push the storage chassis about 5cm from the rear of the rack.
    • Push the storage chassis about 5cm from the rear of the rack.

    • Be careful whenever working around the Open Rack bus bars. Never touch live bus bars.

  15. Go to the front of the Open Rack. Remove the storage chassis from the Open Rack.
    • Go to the front of the Open Rack.

    • Remove the storage chassis from the Open Rack.

  16. Loosen the two thumbscrews on top of the chassis lid. Pull the lid towards the rear of of the chassis. Pull the lid towards the rear of of the chassis.
    • Loosen the two thumbscrews on top of the chassis lid.

    • Pull the lid towards the rear of of the chassis.

  17. Press the tabs on the Powerblade cable to release the cable. Pull the cable upwards. Pull the cable upwards.
    • Press the tabs on the Powerblade cable to release the cable.

    • Pull the cable upwards.

  18. Untether the cable from the chassis by untwisting the six nylon cable management ties. Untether the cable from the chassis by untwisting the six nylon cable management ties.
    • Untether the cable from the chassis by untwisting the six nylon cable management ties.

  19. Connect a new Powerblade cable to the fan controller board.
    • Connect a new Powerblade cable to the fan controller board.

    • When installing a new Powerblade cable, ensure the cable end labeled "PTB SIDE" is situated to interface with the drive plane board.

  20. Install the lid on the storage chassis.
    • Install the lid on the storage chassis.

    • The lid installation process is opposite of its removal process.

  21. Slide the chassis into the Open Rack. Slide the chassis into the Open Rack.
    • Slide the chassis into the Open Rack.

  22. Install the six chassis fans.
    • Install the six chassis fans.

    • The fan installation process is opposite of its removal process.

  23. Slide the storage tray back into the storage chassis.
    • Slide the storage tray back into the storage chassis.

    • Make sure no cables are obstructing the path of the tray when sliding the tray into the chassis.

  24. Tighten the storage tray thumbscrew. Route the Powerblade cable behind the storage tray tab.
    • Tighten the storage tray thumbscrew.

    • Route the Powerblade cable behind the storage tray tab.

    • This tab is located just left of the thumbscrew.

  25. Route the Powerblade cable behind the tray cable guide, as annotated.
    • Route the Powerblade cable behind the tray cable guide, as annotated.

    • Connect the Powerblade cable to the storage tray.

    • Rear chassis LEDs will illuminate blue upon a proper connection.

  26. Install the hard disk drives that were previously removed.
    • Install the hard disk drives that were previously removed.

  27. Close and secure the hard disk drive cages. Close and secure the hard disk drive cages. Close and secure the hard disk drive cages.
    • Close and secure the hard disk drive cages.

  28. Slide the tray back into the rack.
    • Slide the tray back into the rack.

    • Secure the tray by locking the both pull handles.

    • Push the handles towards the storage tray.

    • A distinctive 'click' will be heard when the handles have properly locked.

  29. Connect the Mini-SAS cable to the storage tray.
    • Connect the Mini-SAS cable to the storage tray.

  30. Route the Mini-SAS cable in the nylon cable management clip.
    • Route the Mini-SAS cable in the nylon cable management clip.

  31. Press the power button.
    • Press the power button.

Conclusion

Dozuki System

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