LSI ServeRAID M5000 Series User manual

IBM P/N: 00D2442
ServeRAID M5000 Series
Battery Assembly
USER’S
GUIDE
May 2013

ii
Second Edition (May 2013)
Copyright © 2013 by LSI Corporation. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corp.

ServeRAID M5000 Series Battery Assembly User’s Guide iii
Preface
This user’s guide explains how to install the IBM®ServeRAID M5000
Series Battery Assembly product and use it with the ServeRAID
SAS/SATA controller.
Audience
This document assumes that you are familiar with installing add-in
boards to computers.
The people who benefit from this book are:
•End users who need to install the ServeRAID M5000 Series Battery
Assembly on a ServeRAID SAS/SATA controller.
•Engineers and managers who are evaluating BBU products for
possible use with ServeRAID controllers.
Organization
This document has the following chapters:
•Chapter 1, Introduction, describes the ServeRAID M5000 Series
Battery Assembly and explains how its operates.
•Chapter 2, Installing the ServeRAID M5000 Series Battery
Assembly, explains how to install the ServeRAID M5000 Series
Battery Assembly.
•Chapter 3, Using the Battery Backup Unit, explains how to use and
monitor the ServeRAID M5000 Series Battery Assembly model and
how to replace it.

iv Preface
•Chapter 4, Battery Backup Unit Specifications, has complete
technical information and specifications for the ServeRAID M5000
Series Battery Assembly.
Related Publications
ServeRAID-MR Device Driver Installation User’s Guide
IBM Document Number: 46M1382
This document explains how to install the ServeRAID device driver for
your operating system. The information in this document is independent
of the back-end bus and applies to the ServeRAID SAS/SATA controllers.
ServeRAID-MR Software User’s Guide
IBM Document Number: 46M1381
This document explains how to use the MegaRAID Storage Manager,
WebBIOS, and Command Line Interface (CLI) utilities to configure,
monitor, and maintain the ServeRAID-MR10M controller and the
storage-related devices connected to them.
IBM Systems Safety Notices
IBM Document Number: G229-9054-01
This book contains safety notices from IBM Systems documentation. The
safety notices include danger and caution notices.
Notices and Statements in This Document
The caution and danger statements in this document are also in the
multilingual IBM Systems Safety Notices document, which is on the
ServeRAID-MR Support CD. Each statement is followed by a reference
number that you can use to locate the corresponding statement in your
language in the IBM Systems Safety Notices document. The following
notices and statements are used in this document:
Note: These notices provide important tips, guidance, or advice.

Preface v
Important: These notices provide information or advice that might help
you avoid inconvenient or problem situations.
Attention: These notices indicate potential damage to programs,
devices, or data. An attention notice is placed just before
the instruction or situation in which damage might occur.
CAUTION: These statements indicate situations that can be potentially
hazardous to you. A caution statement is placed just before
the description of a potentially hazardous procedure step or
situation.
DANGER:These statements indicate situations that can be poten-
tially lethal or extremely hazardous to you. A danger
statement is placed just before the description of a
potentially lethal or extremely hazardous procedure
step or situation.
Revision History
IBM Customer Support
Web site:
http://www.ibm.com/systems/support/
Safety Instructions
Use the following safety guidelines to help protect your computer system
from potential damage and to ensure your own personal safety.
IBM Document
Number Date/Version Remarks
Second Edition
March 2013
Added information about multiple relearns for replacement
BBUs.
Corrected Spelling Errors.
??? First Edition
August 2009
Initial release of document.

vi Preface
Note: Use the ServeRAID M5000 Series Battery Assembly
with UL-listed Information Technology Equipment (ITE)
products only.

Preface vii
DANGER
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication
cables are hazardous. To avoid a shock hazard:
•Connect power to this unit only with the provided power cord. Do not use
the provided power cord for any other product.
•Do not open or service any power supply assembly.
•Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical storm.
•The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
•Connect all power cords to a properly wired and grounded electrical
outlet. Ensure that the outlet supplies proper voltage and phase rotation
according to the system rating plate.
•Connect any equipment that will be attached to this product to properly
wired outlets.
•When possible, use one hand only to connect or disconnect signal cables.
•Never turn on any equipment when there is evidence of fire, water, or
structural damage.
•Disconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
•Connect and disconnect cables as described in the following procedures
when installing, moving, or opening covers on this product or attached
devices.
To disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)

viii Preface
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do
not burn. Exchange only with the IBM-approved part. Recycle or
discard the battery as instructed by local regulations. In the United
States, IBM has a process for the collection of this battery. For
information, call 1-800-426-4333. Have the IBM part number for the
battery unit available when you call. (C007)
Protecting against Electrostatic Discharge – Static electricity can
harm delicate components inside your computer. To prevent static
damage, discharge static electricity from your body before you touch any
of your computer’s electronic components, such as the microprocessor.
You can do so by touching an unpainted metal surface, such as the metal
around the card-slot openings at the back of the computer.
As you continue to work inside the computer, periodically touch an
unpainted metal surface to remove any static charge your body may have
accumulated. In addition to the preceding precautions, you can also take
the following steps to prevent damage from electrostatic discharge:
•When unpacking a static-sensitive component from its shipping
carton, do not remove the component from the antistatic packing
material until you are ready to install the component in your
computer. Just before unwrapping the antistatic packaging, be sure
to discharge static electricity from your body.
•When transporting a sensitive component, first place it in an
antistatic container or packaging.
Handle all sensitive components in a static-safe area. If possible, use
antistatic floor pads and workbench pads.

Contents ix
Contents
Chapter 1
Introduction
Chapter 2
Installing the ServeRAID M5000 Series Battery Assembly
2.1 Installing the ServeRAID M5000 Series Battery Assembly Control-
ler 2-2
2.1.1 Installing the battery assembly Directly on a ServeRAID
SAS/SATA Controller 2-2
2.2 Connecting the Battery Assembly to a ServeRAID Controller Re-
motely 2-6
Chapter 3
Using the Battery Backup Unit
3.1 Monitoring the Battery Assembly with the MegaRAID Configura-
tion Utilities 3-2
3.1.1 Monitoring the Battery Assembly with the WebBIOS
Configuration Utility 3-2
3.1.2 Monitoring the Battery Assembly with the MegaCLI Utility
3-6
3.1.3 Monitoring the Battery Assembly with MegaRAID Stor-
age Manager 3-10
3.2 Replacing the ServeRAID M5000 Series Battery Assembly 3-12
3.3 Transferring Cached Data from a Failed Controller 3-13
3.4 Resolving a Configuration Mismatch 3-14
3.5 Disposing of Battery Backup Units 3-15
Chapter 4
Battery Backup Unit Specifications

xContents
4.1 Battery Assembly Specifications 4-1
4.2 Battery Life and Data Retention Time 4-2

Contents xi
Figures
2.1 ServeRAID M5000 Series Battery Assembly 2-3
2.2 Installing the Battery Assembly on the ServeRAID-MR10M
SAS/SATA Controller 2-5
2.3 Installing the ServeRAID-MR10M SAS/SATA Controller 2-6
2.4 Connecting the Daughtercard to the ServeRAID-MR10M
SAS/SATA Controller 2-8
2.5 Installing the ServeRAID-MR10M SAS/SATA Controller 2-9
2.6 Connecting the ServeRAID M5000 Series Battery Assembly
Remotely to the Controller 2-11
3.1 First Controller Properties Screen 3-3
3.2 Second Controller Properties Screen 3-4
3.3 Battery Module Screen 3-5
3.4 Battery Assembly Operations 3-11

xii Contents

Contents xiii
Tables
3.1 Display BBU Information 3-6
3.2 Display BBU Status Information 3-7
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 4-1
4.2 Reference Data Retention Times 4-3

xiv Contents

ServeRAID M5000 Series Battery Assembly User’s Guide 1-1
Chapter 1
Introduction
IBM provides the ServeRAID M5000 Series Battery Assembly for use
with its high-performance ServeRAID SAS/SATA controllers. The battery
backup unit protects the integrity of the cached data on by providing
backup power if there is a complete AC power failure or a brief power
outage. The ServeRAID M5000 Series Battery Assembly provides an
inexpensive alternative to using an uninterruptible power supply (UPS).
The M5000 Battery Assembly is compatible with systems that offer
auxiliary power. Battery charging and recharging take place
automatically. You can use the M5000 Battery Assembly on the following
ServeRAID SAS/SATA controllers:
– ServeRAID-M5014/M5015 SAS/SATA controller
– ServeRAID-M5025 SAS/SATA controller
– ServeRAID-MR10M SAS/SATA controller
Writing a block of data to cache memory is much faster than writing it to
a storage device. The ServeRAID SAS/SATA 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 ServeRAID
SAS/SATA controller has an onboard BBU.
The ServeRAID M5000 Series Battery Assembly monitors the voltage
level of the DRAM modules installed on the ServeRAID SAS/SATA
controller. If the voltage drops below a predefined level, the battery
backup module switches the memory power source from the ServeRAID
SAS/SATA controller to the battery pack attached to the iBBU. As long
as the voltage level stays below the predefined value, the iBBU provides
power for memory. If the voltage level returns to an acceptable level, the
iBBU switches the power source back to the ServeRAID SAS/SATA

1-2 Introduction
controller, and all incomplete writes to storage devices are completed
with no data loss.
The ServeRAID M5000 Series Battery Assembly 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.

ServeRAID M5000 Series Battery Assembly User’s Guide 2-1
Chapter 2
Installing the ServeRAID M5000
Series Battery Assembly
This chapter explains how to install the ServeRAID M5000 Series Battery
Assembly on your ServeRAID SAS/SATA controller.
Attention: Electrostatic discharge can damage the iBBU and the
ServeRAID SAS/SATA controller on which it is installed.
Always ground yourself and/or use a ground strap before
you touch the storage adapter or the iBBU. 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.
The batteries in the battery assembly must recharge for at least six hours
during fast charge under normal operating conditions. IBM recommends
that you set the Write Policy for the controller to write-through until the
battery unit is fully charged, to protect your data. When the battery unit
is charged, you can change the Write Policy to write-back to take
advantage of the performance improvements of data caching.
The maximum ambient temperature for battery packs is 0 °C to 44.5 °C.
Note: The temperature of the battery pack is typically 5 degrees
higher than the ambient temperature during trickle charge
and 15–20 degrees higher than the ambient temperature
during fast charge. Therefore, for the fast charge circuit to
complete a fast charge cycle, ambient temperature should
be less than 40 °C. If the ambient temperature is greater
than 40 °C, the fast charge cycle could terminate
prematurely, and the battery pack will reach full capacity
only through trickle charging. This greatly increases the
time required to charge the battery pack.

2-2 Installing the ServeRAID M5000 Series Battery Assembly
2.1 Installing the ServeRAID M5000 Series Battery Assembly
Controller
You can mount the ServeRAID M5000 Series Battery Assembly mounts
directly or remotely (using a supplied 12-inch cable) to the following
ServeRAID SAS/SATA controllers:
– ServeRAID-M5014/M5015 SAS/SATA controller
– ServeRAID-M5025 SAS/SATA controller
– ServeRAID-MR10M SAS/SATA controller
2.1.1 Installing the Battery Assembly Directly on a ServeRAID
SAS/SATA Controller
This procedure shows how to install the battery assembly on the
ServeRAID-MR10M SAS/SATA controller. You can install the battery
assembly on the ServeRAID-M5014/M5015 SAS/SATA controller and the
ServeRAID-MR10M SAS/SATA controller in the same way.
Note: For information about the iBBU connectors on these
controllers, see the user’s guide for each controller.
Figure 2.1 displays the top view and the bottom view of the card. (The
“top” side is the side you can see after you install the battery assembly
on the controller.) Note that this unit combines a battery pack with a
daughtercard.

Installing the ServeRAID M5000 Series Battery Assembly Controller 2-3
Figure 2.1 ServeRAID M5000 Series Battery Assembly
1 - J4 battery pack harness connector
2 - J5 board-to-board connector
3 - J2 connector
4 - Battery pack harness
Attention: There is danger of an explosion if the battery is incorrectly
replaced. Replace it only with the same or equivalent type
recommended by the manufacturer. Dispose of used
batteries according to the manufacturer’s instructions. See
the Warranty and Support Information document for the
replacement battery part number and battery-disposal
instructions.
If the controller is already installed in a computer, follow these steps to
remove it before you install the battery assembly:
85021-05
(Rear View)
(Front View)
J4
J5
J2
4
1
2
3
4

2-4 Installing the ServeRAID M5000 Series Battery Assembly
1. Turn off the computer, and unplug the power cords from the rear of
the power supply.
2. Remove the cover from the computer according to the instructions in
the system user’s manual so you can access the controller.
3. Ground yourself before you touch the controller.
4. Unplug all cables from the controller, remove the screw attaching the
bracket to the computer case, and carefully remove the RAID
controller from the slot.
5. Place the controller on a flat, clean, static-free surface, and continue
with the next section.
Perform the following steps to mount the battery assembly directly to the
ServeRAID-MR10M SAS/SATA controller using the daughtercard. (All
components are installed on the bottom of the card. The battery is
installed on the top. The maximum height of components installed on the
battery assembly is 0.125”.)
1. Ground yourself, and remove the daughtercard for the battery
assembly from the package.
2. Insert the battery pack harness into the 5-pin J4 connector on the
backside of the battery assembly.
3. Hold the daughtercard for the battery assembly so that the battery
side is up and the J5 connector lines up with the J1 BBU connector
on the ServeRAID-MR10M SAS/SATA controller, as shown in
Figure 2.2.