Dell PowerEdge 58296 User's Manual
Contents
1. Battery NIMH 4 8V 650mA 4 hours onboard battery pack with mounting brackets BAT NIMH 4 8 02 Battery NIMH 4 8 1200mA Primary 12 hours to 100 external offboard battery pack Primary 6 hours to 90 Secondary 60 hours Retention Time for Cache Memory The retention time for cache memory will vary with the SIMM size and number of DRAM SIMM banks used See Appendix A for the data retention time Chapter 3 Specifications 11 Appendix A Data Retention Time The data retention time is a function of e the capacity of the battery pack and e the load of the backed up circuitry Capacity and Load Factors The data retention time as a function of the battery pack capacity and load is listed below The load is the DRAM SIMM and the PERC Controller DRAM Size BAT NIMH 4 8 01 1 Bank of 1 MBx36 12 chips See the Technical Update shipped with the PERC or Dell Server 2 Banks of 1 MBx36 12 2 Banks of 1 MBx36 12 chips BAT NIMH 4 8 02 1 Bank of 1 MBx36 12 chips 2 Banks of 1 MBx36 12 chips The information in this table is not complete See the Getting Help Chapter in the Installation and Troubleshooting Guide that accompanied your Dell computer for additional information about technical support Chapter 3 Specifications 132. Dell PowerEdge Expandable RAID Controller Battery Backup Module Guide Dell PowerEdge Expandable RAID Controller Information in this document is subject to change without notice 1996 Dell Computer Corporation All rights reserved 1996 American Megatrends Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden Trademarks used in this text Dell the DELL logo and PowerEdge are registered trademarks and DellWare is a registered service mark of Dell Computer Corporation Intel is a registered trademark of Intel Corporation Microsoft Windows Windows NT and MS DOS are registered trademarks of Microsoft Corporation SCO is a registered trademark of The Santa Cruz Operations Inc UNIX is a registered trademark of UNIX System Laboratory Inc a wholly owned subsidiary of Novell Inc Novell and NetWare are registered trademarks of Novell Inc JBM and OS 2 are registered trademarks of International Business Machines Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own Part Number 58296 ii PowerEdge Battery Backup Module User s Guide Preface The PowerEdge Battery Pack Module is a mezzanine card that mounts on top of the Po
3. de Install the Battery Backup Card Continued Attach Module to PowerEdge Controller Fasten the Battery Backup Module to the PowerEdge RAID controller using the q screw and nylon washer supplied with the Battery Backup Module First insert the screw through the nylon washer Then insert the screw through the hole on the PowerEdge controller starting at the back of the PowerEdge controller Next tighten the screw into the threaded standoff on the Battery Backup Module The screw must not be as tight as you can make it Tighten the screw so that it is flush with the back of the PowerEdge controller but not so tight that it cannot be turned anymore Side View of MegaRAID and Battery Backup Module MegaRAID Card Insert the large 4 40 nylon screw through the nylon washer and through the mounting hole on the MegaRAID Card starting from the back of the MegaRAID card Thread the standoff on to the screw protruding from the hole Tighten the standoff and the screw Cont d Chapter 1 Installing the Battery Pack 5 Install the Battery Backup Card Continued The PERC with the PowerEdge Battery Backup Module installed on it should appear as follows See the Dell PowerEdge RAID Controller User s Guide for additional information about installing the PowerEdge Expandable RAID Controller 6 PowerEdge Battery Backup Module User s Guide Connecting Battery Packs The PowerEdge Ba
4. er card Bring down the operating system properly Make sure that cache memory has been flushed You must perform a system reset if operating under DOS When the computer reboots the PowerEdge controller flushes cache memory 2 instructions in the PowerEdge RAID Controller User s Guide Reinstall the PowerEdge controller in the computer Follow the instructions in the PowerEdge RAID Controller User s Guide Disposing of a Battery Pack A new battery pack should be installed every 3 to 5 years The material in the battery pack contains heavy metals that can contaminate the environment Federal state and local regulations prohibit the disposal of NIMH batteries in public landfills These batteries must be sent to a specific location for proper disposal You can call the Rechargeable Battery Recycling Corporation at 352 376 6693 FAX 352 376 6658 for an authorized battery disposal site near you For a list of battery disposal sites write to Rechargeable Battery Recycling Corporation 2293 NW 41st Street Gainesville FL 32606 Voice 352 376 6693 FAX 352 376 6658 10 PowerEdge Battery Backup Module User s Guide 3 Specifications Fast Charge Rate 235 mA Trickle Charge Rate 24 mA Charge Time for Battery Packs The following time to charge values are calculated assuming 80 efficiency in the charging process The time to charge values may vary depending on individual battery packs AMI Part Number BAT NIMH 4 8 01
5. he minimum time that the battery must be charged is AMI Part Number BAT NIMH 4 8 01 Battery NIMH 4 8V 650mA onboard 4 hours battery pack with mounting brackets BAT NIMH 4 8 02 Battery NIMH 4 8 1200mA external Primary 12 hours to 100 offboard battery pack Primary 6 hours to 90 Secondary 60 hours The full data retention time is not available until the battery pack is fully charged It is a good idea to set the PowerEdge cache write policy option to Write Through during the battery pack charging period After the battery pack is fully charged you can change the cache write policy to Write Back Removing the Battery Pack A new battery pack should be installed in the battery backup module every 3 to 5 years Bring down the operating system properly Make sure that cache memory has been flushed You must perform a system reset if operating under DOS When the computer reboots the PowerEdge controller flushes cache memory Turn the computer power off Remove the computer cover Disconnect the battery pack from the battery backup module Remove any other items that you want to remove such as the battery backup module PowerEdge controller or DRAM modules Replace the computer cover and turn the computer power on Chapter 2 Using the Battery Backup Module 9 Changing DRAM Modules Important The battery backup module must be disconnected before you add or remove DRAMs to or from the PowerEdge controll
6. ic wristband or by maintaining contact with an electrical ground while you are installing the PowerEdge Battery Backup Module Warning Do not place the PowerEdge Battery Backup Module or the PowerEdge adapter card on a conductive surface while the battery is being attached or after the battery is attached Installing Onboard Battery Pack You should not have to install the onboard battery pack It should already be mounted on the Dell PowerEdge Battery Backup Module Warning Before changing the memory on the PowerEdge card you must disconnect the battery pack Chapter 1 Installing the Battery Pack 3 Install the Battery Backup Card Remove the PowerEdge card and place it on a flat clean static free surface Remove the four shunts from the 8 pin connector Install the PowerEdge Battery Backup daughtercard on the PowerEdge adapter card as shown below OBO PBL N a BER EES J19 921 Battery Backup MN Module m 1 Only half of MegaRAID card is shown above Warning 02 E09 POO ENZO E 00 AA AI SERGE CHES OSEES frrpordrrrts ZZ I ZZ ZI 2 2 3 Mounting Hole gt e ES LERET EEEE S LIEZIET II IT Do not place the PowerEdge Battery Backup Module or the PowerEdge adapter card on a conductive surface while the battery is being attached Cont d 4 PowerEdge Battery Backup Module User s Gui
7. ntents of the PowerEdge memory modules If the voltage level returns to an acceptable level the Battery Backup Module switches the power source back to the PowerEdge adapter card Cont d Chapter 1 Installing the Battery Pack 1 Ove rview Continued Battery Backup Module The backup module is shown below There are no jumpers to set There are only two connectors that attach this daughtercard to the PowerEdge controller card Two three pin connectors J1 and J2 attach the primary onboard battery pack and a secondary battery pack Bottom of board Front of board P N BAT NIMH 4 8 01 nt avec une batterie du meme ecommande par le co a remplacement incorrect de la ies usagees conformement aux used batteries according to the z o E gt o g 8 E a 3 E 3 8 8 S a 2 3 2 E 2 s S 2 a E Ss 3 gt 3 a ATTENTION e same or equivalent type recommended by the PROMARK YYWW IIZ9503MSO BEFORE ADDING OR REMOVING DRAM MODULE DISCONNECT BATTERY PACK FROM BATTERY BACKUP MODULE g S 5 3 E g a o 8 24 o E lt lly a danger d explosion s i only man man 2 PowerEdge Battery Backup Module User s Guide Installing the Battery Backup Module Static Electricity The PowerEdge PC SCSI Disk Array adapter card and the PowerEdge Battery Backup Module contain sensitive electronic components Make sure you ground yourself by wearing an antistat
8. ttery Backup Module usually is shipped with an onboard four cell Nickel Metal Hydride battery pack already installed If this is the case you must only insert the battery connector into J2 as shown below The battery cable connector is keyed to make sure that the proper connection is made type ou d un type equivalent recommande par le constructeur Mettre au rebut les batteries usagees conformement aux instructions du fabricant 2 o Y T 2 a lt o zZ lt a CAUTION Danger of explosion if battery is incorrectly replaced Replace WARNING BEFORE ADDING OR REMOVING DRAM MODULE DISCONNECT ATTENTION BATTERY PACK FROM BATTERY BACKUP MODULE Il y a danger d explosion s il y a remplacement incorrect de la batterie Remplacer uniquement avec une batterie du meme PROMARK YYWW IIZ9503MSO only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the American Megatrends Inc manufacturer s instructions J Attach battery pack connector to J2 Install PowerEdge Card Install the PowerEdge card in the computer See the Dell PowerEdge RAID Controller User s Guide for complete installation instructions Chapter 1 Installing the Battery Pack 7 PowerEdge Battery Backup Module User s Guide 2 Using the Battery Backup Module Charging the Battery Pack The battery pack is shipped uncharged You must charge the battery pack before you can use it T
9. werEdge adapter card The PowerEdge Battery Backup Module provides emergency battery power for the cache memory mounted on the PowerEdge adapter card Technical Support If you need technical assistance see the Getting Help Chapter in the Installation and Troubleshooting Guide that accompanied your Dell computer Dell TechConnect BBS The TechConnect BBS permits you to access technical information about the Dell PowerEdge Expandable RAID Controller For the correct BBS number in your area see the Getting Help chapter in the Installation and Troubleshooting Guide that accompanied your Dell computer Web Site You can access the Dell Computer Corporation web site at http www us dell com Preface iii 1 Installing the Battery Pack Overview The PowerEdge Battery Backup Module protects the data handled by the PowerEdge Expandable RAID Controller by providing protection from power supply interruptions to the PowerEdge cache memory The PowerEdge Battery Backup Module monitors the voltage level of the DRAM modules installed on the PowerEdge card and supporting circuitry If the voltage drops below a predefined level the Battery Backup Module switches the memory power source from the PowerEdge card to the battery pack attached to the PowerEdge Battery Backup Module As long as the voltage level is below the predefined value the PowerEdge Battery Backup Module provides the memory refresh cycles necessary to retain the co
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