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U s e r G u i d e
Battery Backup Unit


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  • Page 1 Battery Backup Unit ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■...
  • Page 2 Reproduction of this document or portions thereof without prior written approval of NEC Computers is prohibited. The NEC Computers product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each product is dependent upon factors such as system configuration, customer data, and operator control.
  • Page 3: Preface

    Preface Congratulations for your purchase of the RAID Battery Backup Unit (called BBU hereafter). This guide describes how to install and use the BBU correctly and safely. Read the guide thoroughly before handling it, and refer to this manual when you want to know how to use it or should some malfunction occur. For more information on the RAID controller to which the BBU is connected, refer to the User’s Guide coming with the RAID controller.
  • Page 4: Table Of Contents

    Table of Contents Preface............................. 3 Table of Contents ..........................4 NOTES ON USE - Always read the Notes - ............5 Symbols Used in This Manual and Warning Labels ................. 6 Safety Notes............................. 7 Warning Labels ..........................11 This Manual............................ 12 In the Package ..........................
  • Page 5: Notes On Use - Always Read The Notes

    Keep this User Guide handy for quick reference. Be sure to read this section carefully. NOTES ON USE - Always read the Notes - The following includes information necessary for proper and safe operation of the product. SAFETY INDICATIONS In the User Guide, "WARNING" or "CAUTION" is used to indicate a degree of danger. These terms are defined as follows: WARNING Indicates a hazard that may result in death or serious personal injury.
  • Page 6: Symbols Used In This Manual And Warning Labels

    Symbols Used in This Manual and Warning Labels Cautions Indicates a general notice or warning that cannot be specifically identified. Indicates that improper use may cause an electric shock. Indicates that improper use may cause a personal injury. Indicates that improper use may cause fumes or fire. Prohibited Actions Indicates a general prohibited action that cannot be specifically identified.
  • Page 7: Safety Notes

    Safety Notes Read the notes described below carefully to understand them, these will enable you to safely use your product. See "Safety Indications" described earlier for the descriptions of symbols. General WARNING Do not use the product for services involving human lives or requiring high reliability.
  • Page 8 Power Supply and Power Cord Use CAUTION Disconnect the power cord(s) before installing or removing the product in/from the server. Make sure to power off the server and disconnect the power cord(s) from the power outlet before installing/removing the product in/from the server, or connecting with the peripheral devices.
  • Page 9 Installation, Relocation, Storage, and Connection CAUTION Do not connect any interface cable when the power cord of the Disk Expansion Unit is plugged to a power source. Make sure to power off the server and unplug the power cord from a power outlet before connecting/disconnecting the interface cable.
  • Page 10 Cleaning and Working with the Product WARNING Do not disassemble, repair, or alter the server. Do not attempt to disassemble, repair, or alter the product in any occasion other than those described in this User Guide. Failure to follow this instruction may cause an electric shock or fire as well as malfunctions of the product.
  • Page 11: Warning Labels

    During Operation CAUTION Avoid contact with the server during thunderstorms. Disconnect the power plug from the outlet when a thunderstorm is approaching. If the thunderstorm begins before you can disconnect the power plug, do not touch any part of the server containing the product. Failure to follow this warning may cause an electric shock.
  • Page 12: This Manual

    Notes on Use - for correct operation of BBU Note the following when using the BBU. If you ignore these notes, your assets (including important data and/or other devices) may be damaged. The BBU cannot be connected to any RAID controller, but only to the ones for which it was purchased. The BBU is an extremely sensitive electronic device.
  • Page 13: In The Package

    In the Package Check the package contents. The package contains various accessories, as well as the product itself. Check with the packing list and make sure you have everything and that individual components are not damaged. If you find any missing or damaged components, contact your sales agent.
  • Page 14: Life Of Bbu

    Life of BBU The BBU is equipped with a backup battery. The life of the battery is about 2 years, but can vary depending on the environmental and operating conditions. Replace the battery with a new one after about two years starting from the installation of the BBU (check the battery label put on the server and the BBU).
  • Page 15: Chapter 1 Overview

    Chapter 1 Overview Read this chapter if you are using the RAID Battery Backup Unit (called Battery Backup Unit=BBU) for the first time. This chapter describes the characteristics and configuration of the BBU and outlines the additional battery installation procedure. 1.
  • Page 16: Installation Flow

    3. Installation Flow For more information, refer to the respective chapters. Start Chapter 1 Check BBU and accessories. Describes how to check the BBU and Check notes on installation. accessories in the package and the notes on installation. Chapter 2 Install BBU.
  • Page 17: Checking The Package Contents

    4. Checking the Package Contents The package contains the following items. Check the contents to confirm that all the items are provided before starting the installation job. Item Remarks RAID Battery Backup Unit This unit Setup Date Label Screw The package contains the following items. Battery Backup Unit Set up Date Screw...
  • Page 18: Names And Functions Of Sections

    5. Names and Functions of Sections This section describes the sections of the BBU. Front view Battery case Contains the Lithium battery cell Recycle & Caution Label This label is put on the battery case. It indicates the recycle symbol, the battery type, a warning message, and is filled with the management revision of the battery.
  • Page 19 Rear view Accessories Set up Date Battery Board Relays the electric power from the battery pack to the RAID Controller Battery Connector Connects to the RAID controller. Setup Date label (accessory) The label is included with the BBU. Fill the year and month corresponding to the installation time on the RAID controller, and stick the label on the battery case.
  • Page 20: Notes

    6. Notes Read the following notes thoroughly before using the BBU. 6-1. Notes on Installation Do not put the BBU on a metallic plate, including the chassis of the server. Do not hold the BBU with wet hands. If you do not follow these directions, the battery may be short-circuited. 6-2.
  • Page 21: Chapter 2 Installing The Bbu

    Chapter 2 Installing the BBU This chapter describes the installation of the BBU in the server. 1. Installation Procedure To install the BBU in the RAID controller, see the following procedure. Before the installation, refer to the User’s Guide of the RAID controller and that of the server.
  • Page 22: Connecting The Battery Cable

    1-2. Connecting the battery cable Connect the battery cable to the battery board firmly. Battery cable Battery connector 1-3. Installing the BBU in the RAID controller See the following instructions and figures. Connect the connector of the battery board to the RAID controller board securely. Please do not hold the card via the part shown in the figure to avoid damaging...
  • Page 23: Checking Via The Utility

    Confirm that the screw holes on the standoffs are lined up with the screw holes on the rear side of the RAID board. Carefully insert 3 screws from the back of the board through the holes on the standoffs. * To remove the additional battery from the RAID board, see the following procedure. Remove the 3 screws from the rear side of the RAID board, and store them safely.
  • Page 24: Chapter 3 Operation And Maintenance

    Chapter 3 Operation and Maintenance 1. Maintenance Service We recommend you contact a Service Representative approved by the manufacturer to order genuine spare parts or to perform any operations on your system. 2. Preventive Maintenance 2-1. Preventive Maintenance of the BBU Check the BBU states (including voltage and temperature) regularly as a preventive maintenance.
  • Page 25: Battery Pack Replacement Procedure

    3. Battery Pack Replacement Procedure Replace the battery pack as described in the following procedure: Exit from all the applications and shutdown the OS. Power off the server and disconnect all the power cords from the power unit. Remove the side cover as described in the User’s Guide of the server. Remove all the cables from the RAID controller and the server.
  • Page 26 Connect this battery to the connector on the RAID controller. Secure with 3 screws from the rear .
  • Page 27 Insert the RAID controller into the PCI slot and secure the BBU with the screw removed previously. RAID Controller RAID Battery Backup Unit Connect the cable between the RAID controller and the system to recover the original state. RAID Controller SAS Cable RAID Battery Backup Unit...
  • Page 28 Confirm whether the RAID controller is recognized by the system after the OS starts. Refer to [2-2. Checking by Utility]. The MegaRAID Storage Manager may not able to recognize the battery pack if it is charged only at the minimum level (or uncharged). If this occurs, charge the battery pack for nine hours or longer.
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