LSI MegaRAID iBBU01 User manual

80- 00162- 01C
80-00162-01 Rev. C
Intelligent Battery
Backup Units for 1078-
based MegaRAID®
Products
USER
GUIDE
April 2009

ii
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
This document contains proprietary information of LSI Corporation. The informa-
tion contained herein is not to be used by or disclosed to third parties without the
express written permission of an officer of LSI Corporation.
Document 80-00162-01 Rev. C (April 2009)
This document describes the current versions of LSI Corporation’s battery
backup unit products. This document will remain the official reference source for
all revisions/releases of these products until rescinded by an update.
LSI Corporation reserves the right to make changes to any products herein at
any time without notice. LSI does not assume any responsibility or liability arising
out of the application or use of any product described herein, except as expressly
agreed to in writing by LSI; nor does the purchase or use of a product from LSI
convey a license under any patent rights, copyrights, trademark rights, or any
other of the intellectual property rights of LSI or third parties.
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
LSI, the LSI logo design, and MegaRAID are trademarks or registered
trademarks of LSI Corporation. Microsoft and Windows are trademarks or
registered trademarks of Microsoft Corporation. Linux is a registered trademark
of Linus Torvalds. All other brand and product names may be trademarks of their
respective companies.
Warranty Notice: Adding a battery on a MegaRAID RAID controller will limit the
warranty of this product. Returns determined to be caused by battery installation
damage, stripped screws, or other damage resulting from the battery installation
will not be covered. ESD damage to the board will also not be covered by the
warranty.
To receive product literature, visit us at http://www.lsi.com.
For a current list of our distributors, sales offices, and design resource
centers, view our web page located at
http://www.lsi.com/contacts/index.html

Intelligent Battery Backup Units for 1078-based MegaRAID Products User’s
Guide iii
Preface
This user’s guide explains how to install and use these LSI battery
backup unit (BBU) products that are used with MegaRAID®1078-based
SAS RAID controllers:
•LSIiBBU01 Intelligent Battery Backup Unit
•LSIiBBU05 Intelligent Battery Backup Unit
•LSIiBBU06 Intelligent Battery Backup Unit
•LSIiBBU07 Intelligent Battery Backup Unit
•LSIiTBBU03 Intelligent Transportable Battery Backup Unit
Audience
This document assumes that you are familiar with installing add-in
boards to computers.
The people who benefit from this document are:
•End users who need to install BBU products on MegaRAID RAID
controllers.
•Engineers and managers who are evaluating BBU products for
possible use with MegaRAID RAID controllers.
Organization
This document has the following chapters:
•Chapter 1, Introduction, describes all the BBU models and explains
how they operate.

iv Preface
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
•Chapter 2, Installing the Battery Backup Units, explains how to
install the BBU models.
•Chapter 3, Using the Battery Backup Units, explains how to use
and monitor the BBU models and how to replace them.
•Chapter 4, Battery Backup Unit Specifications, has complete
technical information and specifications for all BBU models.
Related Publications
MegaRAID SAS Software User’s Guide
Document number: 80-00156-01 Rev. F
This document explains how to use the RAID system configuration,
monitoring, and management tools that MegaRAID provides for the SAS
RAID controllers. These tools include the BIOS-based MegaRAID
Configuration Utility and the WebBIOS Configuration Utility, as well as the
MegaRAID Manager operating system-based tool. The information in this
document is independent of the back-end bus and applies to both
MegaRAID SCSI RAID controllers and MegaRAID Serial ATA RAID
controllers.
MegaRAID SAS Device Driver Installation User’s Guide
Document Number: 80-00163-01 Rev. C
This document describes how to install the MegaRAID device driver for
your operating system. The information in this document is independent
of the back-end bus and applies to the MegaRAID SAS RAID controllers.
MegaRAID 1078-based SAS RAID Controllers User’s Guide
Document No. 80-00157-01 Rev. B
This document explains how to install your MegaRAID 1078-based SAS
RAID controller in a host system. In addition, it provides the electrical and
physical specifications, jumper definitions, and connector locations for
the 1078-based SAS RAID controllers.

Preface v
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Conventions
Throughout the manual, the following conventions are used to describe
user interaction with the product.
Note: Notes contain supplementary information that can have an
effect on system performance.
Caution: Cautions are notifications that an action has the potential to
adversely affect equipment operation, system performance,
or data integrity.
WARNING:Warnings are notifications that an action will definitely
result in equipment damage, data loss, or personal
injury.
Revision History
Notation Example Meaning and Use
Courier typeface .nwk file Names of commands, files, and directories as well as
code and screen messages are shown in Courier.
Initial capital letters Undo
Edit
Apply
Names of menu commands, options, check buttons, text
buttons, options buttons, text boxes, list boxes, and so on,
are shown in text with initial capital lettering to avoid mis-
reading. These elements may appear on your screen in
all lowercase.
Version Date Comments
Rev. C April 2009 Updated the LSIiBBU05, LSIiBBU06 and LSIiBBU07 battery
information. Updated the battery specification.
Rev. B August 2007 Added the LSIiBBU06 Intelligent Battery Backup Unit and the
LSIiBBU07 Intelligent Battery Backup Unit.
Rev. A December 2006 Original release of this document.

vi Preface
Copyright © 2006-2009 by LSI Corporation. All rights reserved.

Contents 1
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Contents
Chapter 1
Introduction
Chapter 2
Installing the Battery Backup Units
2.1 Installing the LSIiBBU01 2-2
2.2 Installing the LSIiBBU05 2-5
2.2.1 Installing the LSIiBBU05 (NiMH) 2-5
2.2.2 Installing the LSIiBBU05 (LiON) 2-11
2.3 Installing the LSIiBBU06 2-17
2.3.1 Connecting to the RAID Controller Using a
Board-to-Board Connector (Daughtercard) 2-18
2.3.2 Connecting the iBBU06 Remotely to the
8708EM2 RAID Controller 2-21
2.4 Installing the LSIiBBU07 2-22
2.4.1 Connecting Using a Board-to-Board Connector
(Daughtercard) 2-23
2.4.2 Connecting the iBBU07 Remotely to the
8880EM2 RAID Controller 2-26
2.5 Installing the LSIiTBBU03 2-28
Chapter 3
Using the Battery Backup Units
3.1 Monitoring BBUs with the MegaRAID Configuration Utilities 3-2
3.1.1 Monitoring BBUs with the WebBIOS Configuration
Utility 3-2
3.1.2 Monitoring BBUs with MegaCLI 3-5
3.1.3 Monitoring Battery Backup Units with MegaRAID
Storage Manager 3-10

2Contents
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
3.1.4 Battery Learn Cycle 3-11
3.2 Replacing Battery Backup Units 3-13
3.3 Disposing of Battery Backup Units 3-14
3.4 Transferring Cached Data from a Failed Controller 3-14
Chapter 4
Battery Backup Unit Specifications
4.1 Specifications for the BBU Models 4-1
4.2 Battery Life and Data Retention Time 4-3
Customer Feedback

Contents 1
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Figures
2.1 LSIiBBU01 Intelligent Battery Backup Unit 2-3
2.2 Installing the LSIiBBU01 on the MegaRAID SAS 8888ELP
RAID Controller 2-4
2.3 LSIiBBU05 and Components 2-6
2.4 Installing the LSIiBBU05 Daughtercard on the MegaRAID
SAS 8708ELP RAID Controller 2-8
2.5 Installing the MegaRAID SAS 8708ELP RAID Controller 2-9
2.6 Connecting the LSIiBBU05 to the MegaRAID SAS 8888ELP
RAID Controller 2-11
2.7 Intelligent Battery Backup Unit 05 2-12
2.8 Installing the LiON iBBU05 on the SAS 8708ELP RAID
Controller 2-13
2.9 Installing the SAS 8708ELP RAID Controller 2-15
2.10 Connecting the LSIiBBU05 to the MegaRAID SAS
8888ELP RAID Controller 2-17
2.11 LSIiBBU06 and Components 2-18
2.12 Installing the LSIiBBU06 Daughtercard on the MegaRAID
SAS 8708EM2 RAID Controller 2-20
2.13 Installing the MegaRAID SAS 8708EM2 RAID Controller 2-21
2.14 Connecting the iBBU06 to the 8708EM2 RAID Controller 2-22
2.15 LSIiBBU07 and Components 2-23
2.16 Installing the LSIiBBU07 Daughtercard on the MegaRAID
SAS 8880EM2 RAID Controller 2-25
2.17 Installing the MegaRAID SAS 8880EM2 RAID Controller 2-26
2.18 Connecting the iBBU07 Remotely to the 8880EM2 RAID
Controller 2-27
2.19 LSIiTBBU03 Intelligent Battery Backup Unit 2-29
2.20 Installing the LSIiTBBU03 in the MiniDIMM Socket on the
MegaRAID SAS 8888ELP RAID Controller 2-30
2.21 Installing the MegaRAID SAS 8888ELP RAID Controller 2-31
3.1 First Controller Properties Screen 3-2
3.2 Second Controller Properties Screen 3-3
3.3 Battery Module Screen 3-4
3.4 Battery Backup Unit Information 3-11
3.5 Battery Backup Unit Operations Screen 3-12

2Contents
Copyright © 2006-2009 by LSI Corporation. All rights reserved.

Contents 1
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Tables
1.1 MegaRAID Battery Backup Unit Matrix 1-2
3.1 Display BBU Information 3-6
3.2 Display BBU Status Information 3-6
3.3 Display BBU Capacity Information 3-7
3.4 Display BBU Design Parameters 3-8
3.5 Display Current BBU Properties 3-8
3.6 Start BBU Learning Cycle 3-9
3.7 Place Battery in Low-Power Storage Mode 3-9
3.8 Set BBU Properties 3-9
4.1 Specifications for the BBU Models 4-1
4.2 Reference Data Retention Times 4-3

2Contents
Copyright © 2006-2009 by LSI Corporation. All rights reserved.

Intelligent Battery Backup Units for 1078-based MegaRAID® User Guide 1-1
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Chapter 1
Introduction
LSI provides a family of MegaRAID®intelligent battery backup units
(iBBUs) for use with its high-performance MegaRAID 1078-based SAS
RAID controllers. The battery backup units protect the integrity of the
cached data on MegaRAID RAID controllers by providing backup power
if there is a complete AC power failure or a brief power outage. The LSI
MegaRAID iBBUs provide an alternative to using an uninterruptible
power supply (UPS), and a second level of fault tolerance when used in
conjunction with a UPS.
The cache memory available on MegaRAID controllers can improve
overall system performance. Writing data to the controllers cache
memory is much faster than writing it to a storage device. Write
operations appear to complete very quickly at the software application
level. The MegaRAID RAID controller then writes the cached data to the
storage device when system activity is low or when the cache is getting
full. The risk of using write-back cache is that the cached data can be
lost if the AC power fails before it has been written to the storage device.
This risk factor is eliminated when the MegaRAID RAID controller has an
onboard iBBU.
The MegaRAID iBBUs monitor the voltage level of the DRAM modules
on the MegaRAID RAID controllers. If the voltage drops below a
predefined level, the battery backup module switches the memory power
source from the RAID controller to the battery pack attached to the iBBU.
As long as the voltage level stays below the predefined value, the
MegaRAID iBBU provides power for memory. If the voltage level returns
to an acceptable level, the iBBU switches the power source back to the
MegaRAID RAID controller, and all pending writes to storage devices are
completed with no data loss.
LSI offers several battery designs in the MegaRAID 1078-based SAS
RAID controller family, as listed in Ta b l e 1 . 1 . This table shows which

1-2 Introduction
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
MegaRAID 1078-based SAS RAID controllers use each iBBU model and
how they are connected.
An intelligent BBU has built-in functionality to charge the battery pack
automatically and to communicate battery status information such as
voltage, temperature, and current, to the host computer system.
Atransportable iBBU can be used to move a RAID controller's cached
data to a replacement controller if that data has not been written to a
drive. This could be necessary if, for example, the controller fails after an
unexpected power failure. After you install the transportable iBBU on the
Table 1.1 MegaRAID Battery Backup Unit Matrix
BBU Product Name Description For RAID Controllers
LSI iBBU01 Intelligent BBU, Nickel Metal
Hydride (NiMH) Technology
MegaRAID SAS 8888ELP (Remote
battery option)
LSI iBBU05 (NiMH) Intelligent BBU, NiMH Technology.
Compatible with backup auxillary
power source.
MegaRAID SAS 8704ELP
(Daughtercard)
MegaRAID SAS 8708ELP
(Daughtercard, no auxillary power
capability)
MegaRAID SAS 8708E (Daughtercard)
MegaRAID SAS 8888ELP (Remote
battery option)
LSI iBBU05 Lithium Ion
(LiON) Intelligent BBU, LiON Technology.
Compatible with backup auxillary
power source.
MegaRAID SAS 8704ELP
(Daughtercard)
MegaRAID SAS 8708ELP
(Daughtercard, no auxillary power
capability)
MegaRAID SAS 8708E (Daughtercard)
MegaRAID SAS 8888ELP (Remote
battery option)
MegaRAID SAS 8704EM2
LSI iBBU06 Intelligent BBU, LiON Technology.
Compatible with backup auxillary
power source.
MegaRAID SAS 8708EM2
(Daughtercard)
MegaRAID SAS 8708EM2 (Remote
battery option)
MegaRAID SAS 8704EM2
LSI iBBU07 Intelligent BBU, LiON Lithium
Polymer Cell Technology.
Compatible with backup auxillary
power source.
MegaRAID SAS 8880EM2
(Daughtercard)
MegaRAID SAS 8880EM2 (Remote
battery option)
LSI iTBBU03 Intelligent transportable BBU,
miniDIMM, LiON technology MegaRAID SAS 8888ELP
(Daughtercard)

1-3
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
new RAID controller, it flushes the unwritten data preserved in the cache
to the drive through the new controller. For more information, see
Section 3.4, “Transferring Cached Data from a Failed Controller.”

1-4 Introduction
Copyright © 2006-2009 by LSI Corporation. All rights reserved.

Intelligent Battery Backup Units for 1078-based MegaRAID® User Guide 2-1
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Chapter 2
Installing the Battery
Backup Units
This chapter explains how to install the BBUs that are used on the
MegaRAID 1078-based SAS RAID controllers. Click on a link below to
view instructions for a specific BBU:
•Section 2.1, “Installing the LSIiBBU01”
•Section 2.2, “Installing the LSIiBBU05”
•Section 2.3, “Installing the LSIiBBU06”
•Section 2.4, “Installing the LSIiBBU07”
•Section 2.5, “Installing the LSIiTBBU03”
Caution: Electrostatic discharge can damage the BBUs and the
MegaRAID RAID controllers on which they are installed.
Always ground yourself and/or use a ground strap before
touching the RAID controller or the BBU. Perform all
installation work at an ESD-safe workstation that meets the
requirements of EIA-625—“Requirements for Handling
Electrostatic Discharge Sensitive Devices.” Follow the
ESD-recommended practices in the latest revision of IPC-
A-610.
If screws are required to attach the iBBU to the MegaRAID RAID
controller, use an ESD-safe Phillips screwdriver to install them. Be sure
the screwdriver is centered in the screw to avoid damaging the screw
head. If you exceed the maximum torque specification, you may damage
the board, connectors, or screws, and you will void the warranty of the
board.
The batteries in the iBBUs must recharge for at least six hours during
fast charge under normal operating conditions. To protect your data, LSI
recommends that you set the RAID controller Write Policy to write-
through until the battery unit is fully charged. When the battery unit is

2-2 Installing the Battery Backup Units
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
charged, you can change the Write Policy to write-back to take
advantage of the performance improvements of data caching.
The maximum operating temperature (ambient) for the battery packs is
40 °C. See Chapter 4, “Battery Backup Unit Specifications,” for the
technical specifications for the iBBUs.
Note: The temperature of the battery packs are generally 15–20
degrees higher than the ambient temperature during fast
charge. Therefore, to complete fast charge cycle, ambient
temperature should be less than 40 °C. If the ambient
temperature exceeds 40 °C, the fast charge cycle will
terminate prematurely, thus preventing the battery pack
from reaching a fully charged state.
2.1 Installing the LSIiBBU01
The LSIiBBU01 Intelligent BBU features Nickel Metal Hydride (NiMH)
battery cell technology and is offered with a 12-inch cable to connect the
unit remotely to the MegaRAID 1078-based SAS 8888ELP RAID
controller. Battery charging and recharging take place automatically.
Figure 2.1 shows top and bottom views of the iBBU01. (The “top” side is
the side you can see after you install the iBBU01 on the motherboard or
server chassis.) Note the J2 connector and the holes for the screws that
attach the iBBU01 to the chassis.

2-3
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Figure 2.1 LSIiBBU01 Intelligent Battery Backup Unit
The iBBU01 does not mount directly to the MegaRAID controller.
– 1 - J2 Battery Pack Harness Connector
– 2 - J14 Connector
– 3 - J1 Board-to-board Connector
– 4 - Battery Pack Harness
Instead, you can use the supplied 10-inch cable to connect the iBBU01
to a RAID controller, as shown in the example in Figure 2.2. The battery
backup unit must be mounted inside the chassis within 12 inches of the
RAID controller.
Because server and workstation chassis vary from vendor to vendor,
there is no standard mounting option that is compatible with the various
system configurations. Therefore, the iBBU01 battery kit contains only
the battery and the cable, allowing value-added resellers (VARs) and
chassis manufacturers to customize the location of the remote battery to
provide the most flexibility within various environments.

2-4 Installing the Battery Backup Units
Copyright © 2006-2009 by LSI Corporation. All rights reserved.
Follow these steps to connect the iBBU01 remotely to the SAS 8888ELP
RAID controller.
1. Ground yourself, and remove the iBBU01 from the package.
2. Use the three Phillips-head screws that are provided to secure the
iBBU01 to the motherboard or server chassis.
3. Insert the battery pack harness connector at the end of the 5-pin
cable into the J2 connector on the backside of the iBBU01.
4. Connect the 12-inch cable from the J1 connector on the iBBU01 to
the J10 battery backup connector on the back of the SAS 8888ELP
controller, as shown in Figure 2.2.
Figure 2.2 Installing the LSIiBBU01 on the MegaRAID SAS
8888ELP RAID Controller