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IBM SSA 32H3816, Installation And User Manual

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PREFACE About This Book

This book is intended for a network administrator-that is, the individual responsible for configuring, maintaining, managing, and 

 

troubleshooting a PC server.  It includes information about installing and using the SSA RAID Adapter, discusses disk-array 

 

technology, and describes tasks associated with disk arrays.

  

 Subtopics

 PREFACE.1 How This Book Is Organized.

 PREFACE.2 Related Publications

SSA RAID Adapter Installation and User's Guide.

About This Book

_ Copyright IBM Corp. 1996

PREFACE - 1

Summary of Contents for SSA 32H3816

Page 1: ...over IBM SSA RAID Adapter for PC Servers Installation and User s Guide Document Number S32H 3816 00 Part Number 32H3816 SSA RAID Adapter Installation and User s Guide Book Cover _ Copyright IBM Corp 1...

Page 2: ...te Before using this information and the product it supports be sure to read the general information under Notices in topic D 2 SSA RAID Adapter Installation and User s Guide Notices _ Copyright IBM C...

Page 3: ...publication It is possible that this publication may contain reference to or information about products machines and programs programming or services that are not announced in your country Such refer...

Page 4: ...urces and Their Attributes 5 4 Changing Array Attributes 5 5 Exchanging a Member of an Array 5 6 Deleting an Array 6 0 Chapter 6 Getting the Latest Information A 0 Appendix A Multiple Adapter Installa...

Page 5: ...FRONT_1 Safety Information SSA RAID Adapter Installation and User s Guide Safety Information _ Copyright IBM Corp 1996 FRONT_1 1...

Page 6: ...SSA RAID Adapter Installation and User s Guide Safety Information _ Copyright IBM Corp 1996 FRONT_1 2...

Page 7: ...ce only with the part number specified for your system Use of another battery might present a risk of fire or explosion The battery connector is polarized do not try to reverse the polarity Dispose of...

Page 8: ...ubleshooting a PC server It includes information about installing and using the SSA RAID Adapter discusses disk array technology and describes tasks associated with disk arrays Subtopics PREFACE 1 How...

Page 9: ...SSA subsystem Chapter 5 Performing Other Disk Array Tasks in topic 5 0 describes other functions of the array utility programs supplied with the adapter Chapter 6 Getting the Latest Information in top...

Page 10: ...uals that you might find useful are SSA RAID Adapter Maintenance Information S32H 3817 SSA RAID Adapter Technical Reference SA33 3269 SSA RAID Adapter Installation and User s Guide Related Publication...

Page 11: ...nt Interconnect PCI architecture and devices using the Serial Storage Architecture SSA The SSA RAID Adapter provides RAID functions Subtopics 1 1 SSA 1 2 The Adapter Card 1 3 RAID 1 4 Operating System...

Page 12: ...ubcommittee SSA retains the SCSI 2 commands queuing model status and sense bytes In SSA subsystems transmissions to several destinations are multiplexed the effective bandwidth is further increased by...

Page 13: ...is the devices connected next to the adapter in the loop have power turned on to them are connected correctly to the adapter and are operational The light flashes continuously if one of the ports is n...

Page 14: ...replaced without turning off the server hot swapping The SSA RAID Adapter provides RAID functions within the interface between your server and its disk drives Disk drives connected to the adapter can...

Page 15: ...e supplied with it provide attachments of SSA devices to the following operating systems OS 2 2 11 SMP OS 2 WarpServer Version Novell NetWare 4 1 4 1 SM Windows NT 3 51 Serve SSA RAID Adapter Installa...

Page 16: ...il instructed to do so This option package contains SSA RAID Adapte Installation and User s Guide this book Hardware Maintenance Manual Supplemen Diskette package containing OS 2 Device Driver and Uti...

Page 17: ...To install this option you will need the following The documentation that came with your serve A small flat blade screwdriver SSA RAID Adapter Installation and User s Guide Installation Requirements _...

Page 18: ...describes how to perform these tasks How to configure disk arrays and attach them to your operating system is described in Chapter 3 Configuring SSA Subsystems in topic 3 0 Subtopics 2 1 Installing t...

Page 19: ...might be necessary to move previously installed adapter cards before installing the SSA RAID Adapter card If you are installing one or two SSA RAID Adapter cards in a PC Server 720 to obtain the best...

Page 20: ...l description of SSA loops and some rules for cabling valid configurations To connect the cables 1 Connect the cables from the devices to the appropriate pair of connectors on the adapter card 2 Turn...

Page 21: ...nit and to the devices Your system automatically performs the PCI configuration tasks which recognize the new adapter and devices during the boot process SSA RAID Adapter Installation and User s Guide...

Page 22: ...pter 3 Configuring SSA Subsystems in topic 3 0 This defines the way that the adapter uses the disk drives that are attached to it Notes a Systems cannot access SSA disk drives until you have used the...

Page 23: ...nfiguring SSA Subsystems in topic 3 0 describes how to do this When you have configured your disk arrays the SSA subsystem will be ready for use with your system The format in which the Event Error Lo...

Page 24: ...it will boot from the primary SSA disk drive and the message CBIOS enabled will appear To return to booting from the previous default device if the message CBIOS enabled appears press the tab key If y...

Page 25: ...that you must perform are 1 Accept the new disk drives into the subsystem 2 Configure disk arrays if required 3 Attach the disk arrays or individual disk drives to your system The following sections d...

Page 26: ...X Version Main Menu New Disks Free Resources System Resources SSA Adapter List Event Error Logger Service Aids About ESCAPE Exit ENTER Select F1 Help To choose an item from a configurator utility menu...

Page 27: ...nd press Delete At the prompt confirm the deletion Its name disappears from the list it is now in the free state You can return to the Main Menu by pressing Esc You can display a list of all the disk...

Page 28: ...Y Slot Z Adapter Q Abou Bus X Device N Slot T Adapter S ESCAPE Exit ENTER Select F1 Help Select the adapter that is to control the array The disk drives that you define as members of the array must b...

Page 29: ...y selected CONFIG SSA Configurator and Service Aids Vyymmdd XX Version Main M Bus X Device Y Slot Z Adapter Q New Disks RAI Free Resour RAI Filter Attributes for RAID X Arrays Syst RAI SSA Rej SSA UID...

Page 30: ...33 status Ru 4 canUID444 status Vi 5 canUID555 status Di ESCAPE Exit ENTER Select F1 Help F9 FlashOn F10 FlashOff c Select the disk drive that is to be included in the array You can identify the disk...

Page 31: ...u by repeatedly pressing Esc The array created is in the free state The next section describes how to attach the array to your system SSA RAID Adapter Installation and User s Guide Creating an Array _...

Page 32: ...FlashOn F10 FlashOff To attach a resource a For the first resource just press Insert To add a resource to an existing list highlight the name of a resource already in the list the new resource will b...

Page 33: ...elect the resource that you want to attach Its name disappears from this list c The System resources window reappears with the new resource added with the appropriate drive address assigned 2 If you a...

Page 34: ...out errors and other events on the adapter and the disk drives attached to i Describes the actions you must perform with the adapter utility programs while changing a disk drive Subtopics 4 1 Basic Pr...

Page 35: ...om SSA loop A port 1 to SSA loop A port 2 or from SSA loop B port 1 to SSA loop B port 2 Is the light next to the adapter loop ports on showing that both ports are operational If the system fails to b...

Page 36: ...Configurator icon 2 From the Main Menu select Event Error Logger and then Analyze SSA Event Log The current list of errors appears in a new window CONFIG SSA Configurator and Service Aids Vyymmdd XX...

Page 37: ...stops the light flashing 3 Highlight the entry for the disk drive that you are going to replace and press F4 This puts that disk drive into service mode the Check light on the disk drive comes on it...

Page 38: ...Defining a Hot Spare in topic 5 1 or Exchange the new disk drive with the previous hot spare using the procedure described in Exchanging a Member of an Array in topic 5 5 SSA RAID Adapter Installation...

Page 39: ...g system To start this utility execute the following program For OS 2 ISSACFG For Novell NetWare load ISSACFG For Windows NT ISSACFG For DOS ISSACFG or if it is available double click on the SSA Confi...

Page 40: ...d by arrays defined on that adapter 3 The Adapter Menu window opens CONFIG SSA Configurator and Service Aids Vyymmdd XX Version Main M Bus X Device Y Slot Z Adapter Q New Disks RAID 0 Arrays Free Reso...

Page 41: ...isks RAID 0 Free Resour RA Syst RA Candidates for Hot spare Disks SSA Re Even No 1 canUID111 status Serv Bus X Ho 2 canUID222 status Abou Bus X Ru 3 canUID333 status Ru 4 canUID444 status Vi 5 canUID5...

Page 42: ...Event Error uidxxxxy Good Service Aids uidxxxyy Good About uidxxzzz Good Port A2 Port B1 No Disks Port B2 ESCAPE Exit ENTER Select F1 Help F2 Format F3 Certify F4 ServiceMode F5 Diagnostics F9 FlashOn...

Page 43: ...e the arrow keys to scroll the window If you select the last item in the list View Members a window opens containing a list of the members of the array CONFIG SSA Configurator and Service Aids Vyymmdd...

Page 44: ...nter Select F1 Help F9 Flash On F10 FlashOff If from the System Resources window you select a disk drive that is not a member of an array the View Physical Disk window appears immediately To see all t...

Page 45: ...FIG SSA Configurator and Service Aids Vyymmdd XX Version Main M Bus X Device Y Slot Z Adapter Q New Disks RAID 0 Arrays Free Resour RAID 1 Arrays Syst RAID 5 Arrays SSA Rejected Disks Even Non Volatil...

Page 46: ...the attributes for the array selected CONFIG SSA Configurator and Service Aids Vyymmdd XX Version Main M Bus X Device Y Slot Z Adapter Q New Disks RAI Free Resour RAI Filter Attributes for RAID X Arra...

Page 47: ...he arrow keys to scroll to the last item in the list View Members and press Enter A window opens showing a list of the members of the array CONFIG SSA Configurator and Service Aids Vyymmdd XX Version...

Page 48: ...indow now shows the new member with the added status rebuilding while the adapter rebuilds the data onto the disk drive from the rest of the array CONFIG SSA Configurator and Service Aids Vyymmdd XX V...

Page 49: ...ne 16 17h About ESCAPE Exit ENTER Select INSERT Insert DELETE Delete F1 Help F9 FlashOn F10 FlashOff Highlight the entry for the array that you want to delete make a note of its adapter number and arr...

Page 50: ...nfigurator and Service Aids Vyymmdd XX Version Main M Bus X Device Y Slot Z Adapter Q New Disks RAID 0 Arrays Free Resour RAID 1 A Syst RAID 5 A List of RAID X Arrays SSA Rejected Even Non Vola Array...

Page 51: ...fer to the SSA RAID Adapter Maintenance Information manual S32H 3817 For detailed information on the operation of the adapter refer to the SSA RAID Adapter Technical Reference manual SA33 3268 For mor...

Page 52: ...r of the PC Server 720 family of servers Only 1 SSA RAID Adapter can be installed in other PC servers If two SSA RAID Adapters are installed they must both be on the primary PCI bus slots 6 and 7 if p...

Page 53: ...ived Probably a software error has occurred 2FFFF An async code that is not Call for service valid has been received 40000 The SSA adapter card has Exchange the adapter for a failed new one or call fo...

Page 54: ...e original adapter card onto the new adapter card then install the new adapter card 5 If the problem remains exchange the DRAM modules for new modules 6 Install the new DRAM modules onto the original...

Page 55: ...ailed The disk drive has been removed from the subsystem An SSA link has failed A power failure has occurred 49500 No hot spare disk drives are Call for service available for a RAID array that is conf...

Page 56: ...dapter for a new one or call for service D4100 The diagnostics cannot open Exchange the adapter card the SSA adapter for a new one or call for service D4300 The diagnostics have detected Exchange the...

Page 57: ...ving the excess devices or adapters from the loop 4 Turn on the server If the SRN occurred because additional devices or adapters were added to a working SSA loop 1 Remove the additional devices or ad...

Page 58: ...l storage architecture SSA The RAID functions that are provided by the SSA RAID Adapter Subtopics C 1 Serial Storage Architecture SSA C 2 RAID Functions SSA RAID Adapter Installation and User s Guide...

Page 59: ...In SSA subsystems transmissions to several destinations are multiplexed the effective bandwidth is further increased by spatial reuse of the individual links Commands are forwarded automatically from...

Page 60: ...h a link SSA cable to the devices The loop continues through the devices then returns through another link to a second connector on the SSA adapter The maximum permitted length for an external cable t...

Page 61: ...a paths The system cannot detect which data path is being used If a disk drive fails or is turned off the loop is broken and one of the data paths to a particular disk drive is no longer available The...

Page 62: ...have been removed Disk drives 1 and 2 can communicate with the system only through connector A1 of the SSA adapter Disk drive number 8 can communicate with the system only through connector A2 of the...

Page 63: ...SSA RAID Adapter Installation and User s Guide Loops and Data Paths _ Copyright IBM Corp 1996 C 1 1 1 3...

Page 64: ...pair of connectors on the SSA adapter that is either connectors A1 and A2 or connectors B1 and B2 A maximum of 48 devices can be connected in a particular SSA loop Only one pair of adapter connectors...

Page 65: ...you can normally exchange that disk drive without interruption of normal system operation The disk arrays can provide data redundancy that ensures that no data is lost if one disk drive in the array...

Page 66: ...a member It does provide a single large data space with the operations spread evenly across members Short operations usually involve only one member longer transfers use several simultaneously and can...

Page 67: ...embers If one member fails operations continue to the good member Performance is degraded for read operations because read operations cannot now be shared between the two members and improved for writ...

Page 68: ...for the other strips is written on the last member The members of the array are used in rotation for the parity data RAID 5 arrays offer data protection good throughput and require fewer disks than R...

Page 69: ...efine as many hot spares as you want Any RAID 1 and RAID 5 array on an adapter can use the hot spare disk drives on that adapter If a disk drive within an array fails at the next write operation to th...

Page 70: ...l states Those states are described here Subtopics C 2 5 1 Good State C 2 5 2 Exposed State C 2 5 3 Degraded State C 2 5 4 Rebuilding State C 2 5 5 Offline State SSA RAID Adapter Installation and User...

Page 71: ...A disk array is in the Good state when all the member disk drives of that disk array are present and functioning correctly SSA RAID Adapter Installation and User s Guide Good State _ Copyright IBM Co...

Page 72: ...the replacement disk drive When the data is correct the array management software returns the disk array to the Good state Read Operations while in the Exposed State When a read operation is performed...

Page 73: ...to data loss if a write operation cannot be completed because of a loss of electrical power for example Therefore it is recommended that you always have a hot spare available If no hot spare disk driv...

Page 74: ...built on the replaced disk drive The array management software allows read and write operations on a disk drive that is in Rebuilding state If the power fails before the rebuilding is complete the arr...

Page 75: ...te A disk array enters Offline state when two or more disk drives become missing Read and write operations are not allowed SSA RAID Adapter Installation and User s Guide Offline State _ Copyright IBM...

Page 76: ...s Machines Corporation Armonk New York 10504 Subtopics D 1 Statement of Limited Warranty D 2 Notices D 3 Trademarks D 4 Communications Statements SSA RAID Adapter Installation and User s Guide Appendi...

Page 77: ...if purchased in the United States or Puerto Rico or Canada and located in the country of purchase If you have any questions contact IBM or your reseller Machine SSA RAID Adapter for PC Servers Warrant...

Page 78: ...used parts which perform like new parts In some cases the Machine may not be new and may have been previously installed Regardless of the Machine s production status IBM s warranty terms apply SSA RAI...

Page 79: ...engineering change level compatible with the feature conversion or upgrade Some of these transactions called Net Priced transactions may include additional parts and associated replacement parts that...

Page 80: ...ent to the item replaced It is your responsibility to 1 obtain authorization from the owner for example your lessor to have IBM or your reseller service a Machine that you do not own 2 where applicabl...

Page 81: ...O THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE HOWEVER SOME LAWS DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES IF THESE LAWS APPLY THEN ALL EXPRESS AND IMPLIED WAR...

Page 82: ...subject of the claim Under no circumstances is IBM liable for any of the following 1 third party claims against you for losses or damages other than those under the first item listed above 2 loss of o...

Page 83: ...on of operation in conjunction with other products except those expressly designated by IBM are the responsibility of the user Any examples of parameters or definitions are for guidance only Some deta...

Page 84: ...e United States or other countries or both IBM OS 2 NetWare is a trademark of Novell Incorporated Microsoft and Windows are trademarks or registered trademarks of Microsoft Corporation SSA RAID Adapte...

Page 85: ...mission FCC Statement D 4 2 VCCI Statement D 4 3 International Electrotechnical Commission IEC Statement D 4 4 Avis de conformit aux normes de l Industrie Canada D 4 5 Industry Canada Compliance State...

Page 86: ...nse Properly shielded and grounded cables and connectors part numbers 07H9163 07H8985 32H1465 88G6404 32H1466 or 88G6406 or their equivalents must be used in order to meet FCC emission limits Neither...

Page 87: ...is Type 1 Data Processing Equipment and is intended for use in commercial and industrial areas When used in a residential area or areas of proximity radio and TV reception may be subject to radio inte...

Page 88: ...Commission IEC Statement This product has been designed and built to comply with IEC Standard 950 SSA RAID Adapter Installation and User s Guide International Electrotechnical Commission IEC Statemen...

Page 89: ...ada Cet appareil num rique de la classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada SSA RAID Adapter Installation and User s Guide Avis de conformit aux normes de...

Page 90: ...ement This Class A digital apparatus meets the requirements of the Canadian Interference Causing Equipment Regulations SSA RAID Adapter Installation and User s Guide Industry Canada Compliance Stateme...

Page 91: ...ety Standard EN60950 and as such is approved in the U K under approval number NS G 1234 J 100003 for indirect connection to public telecommunications systems in the United Kingdom SSA RAID Adapter Ins...

Page 92: ...ropean Standard EN 55022 The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication equi...

Page 93: ...an Orten f r die sie nicht ausreichend entst rt sind nur mit besonderer Genehmigung des Bundesministers f r Post und Telekommunikation oder des Bundesamtes f r Post und Telekommunikation betrieben we...

Page 94: ...figuration validity checking B 1 viewing 5 2 configuration utility 3 1 configuring disk arrays 3 0 disk drives 2 3 SSA subsystems 3 0 D data paths and loops C 1 1 1 degraded state C 2 5 3 deleting an...

Page 95: ...RAID 0 C 2 1 RAID 1 C 2 2 RAID 5 C 2 3 read while exposed C 2 5 2 rebuilding state C 2 5 4 resources attaching 3 4 viewing 5 3 rules for SSA loops C 1 2 S spares hot defining 5 1 function C 2 4 SRNs s...

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