Intel® RAID Smart Battery
AXXRSBBU7
Technical Product Specification
Intel order number E70473-001
Revision 1.0
June 2009
Enterprise Platforms and Services Marketing
Revision History
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
Revision History
Date
June 2009
Revision
Number
1.0
Modifications
Initial Release
Disclaimers
Information in this document is provided in connection with Intel® products. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's
Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any
express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to
fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property
right. Intel products are not intended for use in medical, life saving, life sustaining, critical control or safety systems, or
in nuclear facility applications.
Intel might change specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or
"undefined." Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or
incompatibilities arising from future changes to them.
The Intel® RAID Smart Battery AXXRSBBU7 may contain design defects or errors known as errata which may cause
the product to deviate from published specifications. Current characterized errata are available on request.
Intel is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other
countries.
*Other names and brands may be claimed as the property of others.
Copyright © 2009, Intel Corporation, Portions Copyright LSI, Corporation
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Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
Table of Contents
Table of Contents
1.
Overview ............................................................................................................................... 1
2.
Hardware ............................................................................................................................... 4
2.1
Electrical and Mechanical Details ............................................................................ 4
2.2
Functional Block Diagram........................................................................................ 5
2.3
Board-to-board connector........................................................................................ 5
2.4
Remote Extender Board (REB)................................................................................ 6
2.5
Remote Battery Connecting Cables ........................................................................ 6
2.6
Battery Module......................................................................................................... 7
2.6.1
Internal Connecting Cable ....................................................................................... 7
2.6.2
Circuit Logic Board .................................................................................................. 7
2.6.3
Battery Pack - Life and Data Retention Time .......................................................... 8
2.6.4
Battery States .......................................................................................................... 8
3.
RAID Firmware Interaction ................................................................................................ 10
4.
Software .............................................................................................................................. 11
5.
4.1
Intel® RAID BIOS Console 2 .................................................................................. 11
4.2
Intel® RAID Web Console 2 ................................................................................... 11
4.3
Intel® RAID Command Line Utility 2....................................................................... 11
Product Regulatory Compliance....................................................................................... 12
5.1
Intended Application .............................................................................................. 12
5.2
Safety..................................................................................................................... 12
5.3
Environmental Compliance.................................................................................... 12
Glossary..................................................................................................................................... 13
Reference Documents .............................................................................................................. 14
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List of Figures
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
List of Figures
Figure 1. Intel® RAID Smart Battery AXXRSBBU7........................................................................ 2
Figure 2. Block Diagram ............................................................................................................... 5
Figure 3. Remote Extender Board ................................................................................................ 6
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List of Tables
List of Tables
Table 1. Electrical and Mechanical Details ................................................................................... 4
Table 2. Board-to-Board Interface Connector Pin-out .................................................................. 5
Table 3. Cable Compatibility ......................................................................................................... 6
Table 4. Interface Connector Pin-out ............................................................................................ 6
Table 5. Interface Connector Pin-out ............................................................................................ 7
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List of Tables
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
<This page intentionally left blank.>
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1.
Overview
Overview
This document describes the key hardware components, firmware, and software utility
requirements for the Intel® RAID Smart Battery AXXRSBBU7. It provides data integrity for the
RAID (Redundant Array of Inexpensive Disks) solution by ensuring that the data passing
through the cache is protected during a power outage until written to the hard drives.
The Intel® RAID Smart Battery AXXRSBBU7 is available as an accessory for some Intel® RAID
Controller models.
The Intel® RAID Smart Battery AXXRSBBU7 contains the following components:
ƒ
Board-to-board connector: The Intel® RAID Smart Battery AXXRSBBU7 can connect to
the base RAID controller through this connector, as a daughter card to the base RAID
controller.
ƒ
20-pin remote battery connector: The Intel® RAID Smart Battery AXXRSBBU7 can
remotely connect to the Remote Extender Board (REB) component through this
connector.
ƒ
Remote Extender Board (REB): The REB component is used to connect to the base
controller through the board-to-board connector, as a daughter card to the base
controller, so as to provide a 20-pin inline connector for remote battery installation
support.
ƒ
Remote battery connecting cable: A 20-inch 20-pin connector cable is provided to
connect the REB card to the battery.
ƒ
The Smart Battery Module which includes the following components:
ƒ
ƒ
Smart Battery circuit board: This ensures that the battery is maintained at optimal
performance and charge levels. This circuit is based on the Texas Instruments
bq2060A SBS v1.1-compliant gas gauge IC*.
ƒ
Battery pack: The battery pack is mounted on the circuit board. It includes a separate
internal circuit logic board and Li-Ion (Lithium Ion) batteries. The logic board provides
sensing and management logic to support battery charge, discharge, and monitoring.
ƒ
5-pin battery pack connecting cable: The connector is used for communicating
between the Smart Refresh circuit board and the battery pack.
Monitoring / notification software: Monitoring is accomplished through the Intel® RAID
BIOS Console 2, Intel® RAID Web Console 2, or Intel® RAID Command Line Utility 2
utilities. The software notifies the user of failures or corrective actions.
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Overview
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
1.
J4 Battery Pack Harness Connector
2.
J5 Board-to-board Connector
3.
J2 Remote BBU Connector
4.
Battery Pack Harness
Figure 1. Intel® RAID Smart Battery AXXRSBBU7
The battery pack charges automatically and communicates battery status information, such as
voltage, temperature, and current to the host computer system.
During RAID controller operation, a “write back cache” option is available where data is first
written to the RAID controller cache memory and held in memory until the disk is available for
the write to complete. This improves write performance as it is faster to write data to the RAID
adapter’s cache memory than it is to write it directly to a storage device. These write operations
are completed quickly at the software application level. The RAID controller then writes the
cached data to the storage device when it is available to accept the write.
This method of writing data carries a risk. Cached data on the RAID controller can be lost if the
AC power fails before the data is written to the storage device. The Intel® RAID Smart Battery
AXXRSBBU7 mitigates this risk by providing battery power to the RAID controller if the AC
power fails.
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Overview
The Intel® RAID Smart Battery AXXRSBBU7 monitors the voltage level of the DRAM modules
on the RAID controller. If the voltage drops below a predefined level, the Smart Battery switches
the memory power source from the RAID controller to the battery pack. The battery pack
provides power for the memory until the voltage returns to an acceptable level, at which time the
Smart Battery circuit board switches the power source back to the RAID controller. Cached data
is then written to the storage devices with no loss of data. The Smart Battery provides additional
fault tolerance when used with an UPS.
The battery pack cache memory hold time depends on the size and configuration of the RAID
controller memory. Retention time depends on memory capacity and the number of memory
components on the DIMM to support the capacity. An estimated battery backup retention time is
72 hours (three days).
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Hardware
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
2.
Hardware
2.1
Electrical and Mechanical Details
Table 1. Electrical and Mechanical Details
Feature
Data retention
Up to 72 hours
Description
Chemistry
Lithium-Ion (Li-Ion)
Dimensions
3.160 inches x 2.122 inches (battery extends over PCB)
Weight
51 grams
Operating temperature
10 to 44.5° C dry bulb temperature (the maximum dry bulb
temperature is derated by 3.3° C per 1000 m above 500 m)
Operating humidity
20% - 80 %, non-condensing
Storage temperature
Depends on the storage time:
ƒ
Greater than 90 days at 0 to 30° C
ƒ
30 to 90 days at 0 to 40° C
ƒ
Less than 30 days at 0 to 50° C
Storage humidity
20% to 80 %, non-condensing
Battery capacity
1350 mAH
Voltages
Nominal OCV: 3.7 V
Fast charge rate
500 mAH
Battery voltage conditioning
Less than 3.0 V
Battery charge time
Typical: Approximate 4 hours
Date retention times
72 hours for 512 MB, using five 64M x 16 parts DDR
MTBF (electrical components)
ƒ
ƒ
Battery shelf life
One year
Battery operational life
500 recharges cycles
3,257,965 hours at 40 °C (AXXRSBBU07)
20,408,163 hours at 40 °C (Remote Extender Board)
Note: Intel recommends replacing the battery yearly.
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2.2
Hardware
Functional Block Diagram
Figure 2. Block Diagram
2.3
Board-to-board connector
The Intel® RAID Smart Battery AXXRSBBU7 can be connected through the board-to-board
connector J5.
Table 2. Board-to-Board Interface Connector Pin-out
Revision 1.0
Pin
1
Signal Name
VBB_DDR_MEM
Output
Signal Type
2
GND
GND
3
+12 V
Input
4
GND
GND
5
PFAIL#
Output
6
BBEN
Input
7
+1.8V
Input
8
BBU_DET
Output
9
3.3v_AUX
Input
10
GND
GND
11
GND
GND
12
+3.3V
Input
13
SCL
Input / output
14
GND
GND
15
SDA
Input / output
16
BBSTATUS
Output
17
GND
GND
18
BBSTROBE
Input
19
GND
Input
20
VBB_DRR_MEM
Output
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Hardware
2.4
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
Remote Extender Board (REB)
The REB component is designed to mount to the base controller through the board-to-board
connector J2, as a daughter card to the base controller. The REB provides a 20-pin remote
battery connector J1 for remote battery installation support.
Figure 3. Remote Extender Board
2.5
Remote Battery Connecting Cables
The AXXRSBBU7 supports remote connectivity to a RAID controller via a 20 pin cable.
Remotely connecting the battery to some RAID controllers may also require the use of the
Remote Extender Board (REB). To remotely connect the Intel® RAID Smart Battery
AXXRSBBU7 to a RAID controller, connect the 20-pin cable to J2 on the battery and the other
end of the cable to the REB J1 connector, or to a 20 pin connector on the RAID controller if
available. If using a REB, the REB should then be mounted as a daughter card to the RAID
controller through the J2 connector on the REB.
Table 3. Cable Compatibility
Intel® RAID Controller or Server System
Intel® RAID Controller RS2BL080
20-inch Cable
X (Requires
REB)
Intel® RAID Controller RS2BL040
X (Requires
REB)
Intel® RAID Controller RS2PI008
X
Table 4. Interface Connector Pin-out
6
Pin
1
+12 V
Signal Name
Input
Signal Type
2
GND
GND
3
SPARE
N/A
4
GND
GND
5
VREG_DDR (1.8 V / 2.5 V)
Input
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Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
2.6
Pin
6
GND
Signal Name
GND
7
+3.3 V
Input
8
GND
GND
9
DDR – Rail (2.5 V – 1.8 V)
In power / out power, depending on mode
10
GND
GND
11
AUXPWR_3.3V
Input
12
GND
GND
Hardware
Signal Type
13
SCL
Input / output
14
GND
GND
15
SDA
Input / output
16
PFAIL#
Output
17
SPARE
N/A
18
XD0-BBE
Input
19
BBSTROBE
Output
20
BBSTATUS
Output
Battery Module
The battery module includes components and states of operation as described below.
2.6.1
Internal Connecting Cable
Within the battery module, a 5-pin connector cable connects the battery pack to the Smart
Battery circuit board.
Table 5. Interface Connector Pin-out
2.6.2
Pin
1
Signal Name
VBATP
I/O
Input
Description
Battery positive terminal
2
THERMISTOR SENSE
Output
Sense contact of the thermistor
3
GND
Input
Battery negative terminal
4
SCL
Output
I2C Clock for pack monitoring
5
SDA
Input
I2C Data for pack monitoring
Circuit Logic Board
®
The Intel RAID Smart Battery AXXRSBBU7 is based on the Texas Instruments bq2060A SBS
v1.1-compliant Gas Gauge IC*. The SBS v1.1 IC maintains an accurate record of the available
charge. It monitors the amount of charge input into or removed from the Intel® RAID Smart
Battery AXXRSBBU7 to determine the battery capacity.
The bq2060A measures battery voltage, temperature, and current; estimates battery selfdischarge and monitors the battery for low-voltage thresholds. It measures charge and
discharge activity by monitoring the voltage across a small-value series sense resistor between
the battery’s negative terminal and the negative terminal of the battery pack. The battery charge
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Hardware
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
is determined by monitoring this voltage and correcting the measurement for environmental and
operating conditions.
For more information about the Texas Instruments bq2060A SBS v1.1-compliant Gas Gauge
IC*, refer to the Texas Instruments web site at http://www.ti.com/.
The Intel® RAID Smart Battery offers the following features:
ƒ
The Smart Battery circuit integrated into the battery pack
ƒ
Provides reduced host CPU intervention
ƒ
Shares I2C bus with the on-board EEPROM (Electronically Erasable Programmable
Read-Only Memory) for memory
ƒ
Provides real-time battery status information
ƒ
Displays a low charge warning
ƒ
Provides instantaneous voltage, current, and temperature warnings
ƒ
Provides remaining battery charge percentage and at-rate information
ƒ
Broadcasts event alarms to the host:
ƒ
- Out-of-temperature
- Terminate charge
- Terminate discharge
- Low capacity
Displays manufacturing information
ƒ
Provides Smart Charger Protocol for improved battery maintenance, calibration, and
charging performance
2.6.3
Battery Pack - Life and Data Retention Time
®
The Intel RAID Smart Battery software utilities use a counter to show the number of times the
battery has been recharged. When replacing the Intel® RAID Smart Battery AXXRSBBU7, the
Intel® RAID BIOS Console 2 utility can be used to reset the counter to zero for the new battery.
Intel recommends that you replace the Intel® RAID Smart Battery AXXRSBBU7 once a year or
after 500 recharging cycles, whichever comes first. The Smart Battery has a one-year warranty.
The Smart Battery can retain data for about 72 hours (three days). This is approximate and can
vary due to several factors, including charge level of the battery pack, the battery load, the
ambient temperature, the age of the battery, and the number of discharge cycles associated
with the battery.
2.6.4
Battery States
The battery pack includes sensing logic that checks the battery voltage levels and recognizes
the battery state.
2.6.4.1
Initialized State
The battery is in the initialized state during a normal power-up sequence. In the RAID firmware,
there are two levels of initialization:
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ƒ
During boot loader execution
ƒ
During a RAID firmware boot
2.6.4.2
Hardware
Discharging State
The battery voltage is drained as part of a relearn cycle.
2.6.4.3
Fully-charged State
Battery voltage level is monitored to determine the level of charge. Charging begins when the
battery’s sensing logic detects low voltage.
Once a new battery is fully charged, a relearn cycle is initiated. Relearn is the process of taking
a fully charged battery through the discharge-charge cycle to update the gas gauge capacity
parameters. The relearn cycle takes up to 24 hours to fully discharge and recharge the battery
pack. After the relearn cycle is completed, information from the battery accurately provides the
state of charge, capacity, and other parameters.
These parameters determine the health of the battery; a relearn should be performed
periodically to recalibrate these parameters:
ƒ
The relearn cycle can be set at a user-defined interval. The default is one month (30
days).
ƒ
A relearn cycle is initiated when a new battery is inserted, even if the battery was fully
charged previously.
ƒ
Some applications can start a relearn, or a relearn can be manually started.
2.6.4.4
Fully-discharged State
The fully-discharged state is detected as a very low voltage parameter. The charger detects a
fully-discharged battery state and starts charging the cells when sufficient power is available,
and when the firmware has completed initializing the pack.
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RAID Firmware Interaction
3.
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
RAID Firmware Interaction
The RAID firmware detects the battery status and logs the following events:
10
ƒ
Battery is present
ƒ
Battery is not present
ƒ
A new battery is detected
ƒ
Battery has been replaced
ƒ
Battery temperature is high
ƒ
Battery voltage is low
ƒ
Battery is charging
ƒ
Battery is discharging
ƒ
Battery voltage is normal
ƒ
Battery needs replacement: SOH is bad
ƒ
Battery needs replacement: Battery is three years old
ƒ
Battery needs replacement: Charger is not working
ƒ
Relearn has started
ƒ
Relearn is in progress
ƒ
Relearn completed
ƒ
Relearn timed out
ƒ
Relearn pending: Battery is under charge.
ƒ
Relearn postponed
ƒ
Relearn will start in four days
ƒ
Relearn will start in two days
ƒ
Relearn will start in one day
ƒ
Relearn will start in five hours
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Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
4.
Software
4.1
Intel® RAID BIOS Console 2
Software
The system BIOS loads the RAID option ROM that resides on the Intel® RAID controller flash.
To use this utility, press <Ctrl> + <G> when prompted during POST (Power-on Self Test). The
option ROM checks for the presence of the battery and informs the user if the battery is missing
or not fully charged. The Intel® RAID BIOS Console 2 utility can be used to monitor charge cycle
count and voltage levels. For more information on the Intel® RAID BIOS Console 2 utility, see
the Intel® RAID Software User’s Guide.
4.2
Intel® RAID Web Console 2
The Intel® RAID Web Console 2 utility is an operating system-based utility for supported
Microsoft Windows* and Linux* operating systems. This utility can monitor battery status,
charge level, and so on. For more information on the Intel® RAID Web Console 2 utility, see the
Intel® RAID Software User’s Guide.
4.3
Intel® RAID Command Line Utility 2
The Intel® RAID Command Line Utility 2 is a text-based command-line utility (CLU) for DOS*,
UEFI*, Microsoft Windows* and Linux* operating systems. It shows battery status and can be
used to initiate a relearn. For a list of all command line options, see the Intel® RAID Controller
Command Line Tool 2 User Guide.
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Product Regulatory Compliance
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
5.
Product Regulatory Compliance
5.1
Intended Application
This product was evaluated as a component for use with Information Technology Equipment
(ITE), which may be installed in offices, schools, computer rooms, and similar commercial type
locations. The suitability of this product for other product categories and environments (such as:
medical, industrial, telecommunications, NEBS, residential, alarm systems, test equipment, and
so on.), other than an ITE application, may require further evaluation.
5.2
Safety
This BBU complies and has been certified by UL to UL60950.
5.3
Environmental Compliance
This BBU complies with:
ƒ
European Directive 2002/95/EC and it’s updates
-
Restriction of Hazardous Substances (RoHS) - Threshold limits and banned
substances are noted below the following:
ƒ Quantity limit of 0.1% by mass (1000 PPM) for:
Lead, Mercury, Hexavalent Chromium, Polybrominated Biphenyls Diphenyl
Ethers (PBB/PBDE)
ƒ
12
Quantity limit of 0.01% by mass (100 PPM) for:
Cadmium
ƒ
MII Measure 39 (China RoHS) EFUP of 5-10 yrs, based on the technology
ƒ
European Battery Directive 2006/66/EC and it’s updates
ƒ
UN38.3 Air Transportation Regulation
ƒ
IATA, ADR Transportation Requirements
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Glossary
Glossary
This appendix contains important terms used in the preceding sections.
Word / Acronym
BBU
Battery Backup Unit
Definition
BIOS
Basic Input/Output System
CLU
Command-line Utility
DIMM
Dual In-line Memory Module
Gb
Gigabit
GB
Gigabyte
Kb
Kilobit
KB
Kilobyte
Mb
Megabit
MB
Megabyte
PCB
Printed Circuit Board
POST
Power-on Self Test
RAID
Redundant Array of Independent Disks
ROM
Read-only Memory
SAS
Serial Attached SCSI
SCSI
Small Computer Systems Interface
SOH
State of Health
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Reference Documents
Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification
Reference Documents
See the following documents for additional information:
14
ƒ
Intel® RAID Smart Battery AXXRSBBU7 User’s Guide (Document number: E70472-00x)
ƒ
Intel® RAID Software User’s Guide (Document number: D29305-0xx)
ƒ
Intel® RAID Controller Command Line Tool 2 User Guide (Document number: E3609200x)
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