User Manual
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C (Page A-1) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 AHA-2740/2742 Single-Channel AHA-2740T/2742T TwinChannel™ EISA-to-Fast SCSI Host Adapters User's Manual Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
C (Page A-1) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 AHA-2740/2742 Single-Channel AHA-2740T/2742T TwinChannel™ EISA-to-Fast SCSI Host Adapters User's Manual Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
User Manual
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All rights reserved. C LL 9/93 Information subject to change without notice. C (Page A-2) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Adaptec, Inc. 691 South Milpitas Boulevard Milpitas, CA 95035 Copyright © 1993, Adaptec, Inc. Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. Printed in Singapore STOCK NO.: 510381-00 Rev. Adaptec and the Adaptec logo are registered trademarks of Adaptec, Inc.
All rights reserved. C LL 9/93 Information subject to change without notice. C (Page A-2) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Adaptec, Inc. 691 South Milpitas Boulevard Milpitas, CA 95035 Copyright © 1993, Adaptec, Inc. Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. Printed in Singapore STOCK NO.: 510381-00 Rev. Adaptec and the Adaptec logo are registered trademarks of Adaptec, Inc.
User Manual
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C (Page 0-i) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 AHA-2740/2742 Single-Channel AHA-2740T/2742T TwinChannel™ EISA-to-Fast SCSI Host Adapters User's Manual v v v v v v v v v v v v Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
C (Page 0-i) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 AHA-2740/2742 Single-Channel AHA-2740T/2742T TwinChannel™ EISA-to-Fast SCSI Host Adapters User's Manual v v v v v v v v v v v v Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
User Manual
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...Novell, Inc. Copyright Copyright © 1993 Adaptec, Inc. MS-DOS is a registered trademark of Adaptec, Inc., 691 South Milpitas Blvd., Milpitas, CA 95035. NetWare is a registered trademark of Unix Systems Laboratories. ii Adaptec AHA-2740 Series User's Manual Stock Number: 510381...Rev C Current Date: 9/1/93 ECN Date: 9/14/93 AT&T is a trademark of Microsoft Corporation. Adaptec and the Adaptec logo are registered trademarks, and AHA, TwinChannel, and PhaseEngine are registered trademarks of American Telephone and Telegraph Company. UNIX is a registered trademark ...
...Novell, Inc. Copyright Copyright © 1993 Adaptec, Inc. MS-DOS is a registered trademark of Adaptec, Inc., 691 South Milpitas Blvd., Milpitas, CA 95035. NetWare is a registered trademark of Unix Systems Laboratories. ii Adaptec AHA-2740 Series User's Manual Stock Number: 510381...Rev C Current Date: 9/1/93 ECN Date: 9/14/93 AT&T is a trademark of Microsoft Corporation. Adaptec and the Adaptec logo are registered trademarks, and AHA, TwinChannel, and PhaseEngine are registered trademarks of American Telephone and Telegraph Company. UNIX is a registered trademark ...
User Manual
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...the user is equipped with an FCC compliance label which can radiate radio frequency energy, and if not installed and used in residential installations. iii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. This equipment generates, uses, and can be attached to operate such equipment. C... (Page 0-iii) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Each AHA-2740 Series host adapter is encouraged to try to correct the interference by the grantee or manufacturer could void the user's authority to this equipment...
...the user is equipped with an FCC compliance label which can radiate radio frequency energy, and if not installed and used in residential installations. iii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. This equipment generates, uses, and can be attached to operate such equipment. C... (Page 0-iii) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Each AHA-2740 Series host adapter is encouraged to try to correct the interference by the grantee or manufacturer could void the user's authority to this equipment...
User Manual
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... 1-4 Fully Disk Array Capable 1-5 Advanced Fast SCSI-2 Implementation 1-5 Multiple Device and Applications Support 1-5 Board Layout 1-6 Default Settings 1-7 The On-board Floppy Controller (AHA-2742/2742T Only 1-8 Unpacking and Inspection 1-8 Adaptec Technical Support 1-9 2 Getting Started About This Chapter 2-1 Installation Overview 2-3 The Host Adapter and the SCSI Bus 2-4 Quick Installation 2-5 Prepare Your SCSI Devices 2-5 Install Your Host Adapter and...
... 1-4 Fully Disk Array Capable 1-5 Advanced Fast SCSI-2 Implementation 1-5 Multiple Device and Applications Support 1-5 Board Layout 1-6 Default Settings 1-7 The On-board Floppy Controller (AHA-2742/2742T Only 1-8 Unpacking and Inspection 1-8 Adaptec Technical Support 1-9 2 Getting Started About This Chapter 2-1 Installation Overview 2-3 The Host Adapter and the SCSI Bus 2-4 Quick Installation 2-5 Prepare Your SCSI Devices 2-5 Install Your Host Adapter and...
User Manual
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AHA-2740 Series User's Manual SCSI Bus Activity LED Connector 2-14 Connecting Peripherals 2-15 Before Re-booting Your System 2-23 Reassemble the System 2-23 3 ...APPENDICES A Specifications About This Appendix A-1 Technical Information A-3 Product Specifications A-3 Extended Industry-Standard Architecture Interface . . . . . A-4 SCSI Interface A-4 Electrical Interface A-4 Floppy Disk Interface A-8 Standard Electronic and Physical Interface A-8 Connector A-8 vi Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 0-vi) Print Spec Number: 491709-00 Rev C ...
AHA-2740 Series User's Manual SCSI Bus Activity LED Connector 2-14 Connecting Peripherals 2-15 Before Re-booting Your System 2-23 Reassemble the System 2-23 3 ...APPENDICES A Specifications About This Appendix A-1 Technical Information A-3 Product Specifications A-3 Extended Industry-Standard Architecture Interface . . . . . A-4 SCSI Interface A-4 Electrical Interface A-4 Floppy Disk Interface A-8 Standard Electronic and Physical Interface A-8 Connector A-8 vi Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 0-vi) Print Spec Number: 491709-00 Rev C ...
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...Rev C Current Date: 9/1/93 ECN Date: 9/14/93 D-5 Glossary About This Glossary Glossary-1 Glossary Glossary-3 Index Index-1 vii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. Table of Contents B I/O Operating Environment About This Appendix B-1 Host .../Windows B-3 C Optimizing Performance About This Appendix C-1 Performance Tips C-3 Enabling Synchronous Negotiation C-3 Disabling the Host Adapter BIOS C-3 Enabling SCSI Bus Parity C-4 Setting Enable Disconnection C-4 Send Start Unit Command C-4 DOS/Windows Performance C-5 D Disk Drives Over 1 Gigabyte About ...
...Rev C Current Date: 9/1/93 ECN Date: 9/14/93 D-5 Glossary About This Glossary Glossary-1 Glossary Glossary-3 Index Index-1 vii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. Table of Contents B I/O Operating Environment About This Appendix B-1 Host .../Windows B-3 C Optimizing Performance About This Appendix C-1 Performance Tips C-3 Enabling Synchronous Negotiation C-3 Disabling the Host Adapter BIOS C-3 Enabling SCSI Bus Parity C-4 Setting Enable Disconnection C-4 Send Start Unit Command C-4 DOS/Windows Performance C-5 D Disk Drives Over 1 Gigabyte About ...
User Manual
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...3-2. Selecting Interrupt Level 3-6 Figure 3-3. AHA-2740 Series User's Manual List of Figures Figure 1-1. Selecting SCSI Bus Reset at Power-on the Host Adapter 2-8 Figure 2-2. Host Adapter Board Layout 1-6 Figure 2-1. Utility Selection 3-20 viii Adaptec AHA-2740 Series User's Manual Stock Number: ...510381-00 / Rev. Connectors on 3-11 Figure 3-10. SCSI Device Configuration 3-15 Figure 3-14. C (Page 0-viii) Print Spec Number: ...
...3-2. Selecting Interrupt Level 3-6 Figure 3-3. AHA-2740 Series User's Manual List of Figures Figure 1-1. Selecting SCSI Bus Reset at Power-on the Host Adapter 2-8 Figure 2-2. Host Adapter Board Layout 1-6 Figure 2-1. Utility Selection 3-20 viii Adaptec AHA-2740 Series User's Manual Stock Number: ...510381-00 / Rev. Connectors on 3-11 Figure 3-10. SCSI Device Configuration 3-15 Figure 3-14. C (Page 0-viii) Print Spec Number: ...
User Manual
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External Connector Pin Assignments A-7 Table A-6. Output Signals A-4 Table A-3. SCSI Device and AHA Configuration 2-9 Table A-1. Standard EISA Bus Electronic and Physical Interface A-4 Table A-2. Host Adapter Default Settings 1-7 Table 2-1. Internal Connector Pin Assignments A-6 Table A-5. Input Signals A-5 Table A-4. Output and Input Signals A-8 ix Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 0-ix) Print Spec...
External Connector Pin Assignments A-7 Table A-6. Output Signals A-4 Table A-3. SCSI Device and AHA Configuration 2-9 Table A-1. Standard EISA Bus Electronic and Physical Interface A-4 Table A-2. Host Adapter Default Settings 1-7 Table 2-1. Internal Connector Pin Assignments A-6 Table A-5. Input Signals A-5 Table A-4. Output and Input Signals A-8 ix Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 0-ix) Print Spec...
User Manual
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... -Fast SCSI Host Adapters. Appendix D, Disk Drives Over 1 Gigabyte, describes Adaptec's extended translation feature which may occur during installation and configuration. Chapter 4, Troubleshooting, has information to assist you how to 8 Gigabytes (GBytes) in troubleshooting problems that may be of host adapters. Chapter 1, Introduction, provides general information about the Adaptec AHA-2740 Series of use the Adaptec AHA...
... -Fast SCSI Host Adapters. Appendix D, Disk Drives Over 1 Gigabyte, describes Adaptec's extended translation feature which may occur during installation and configuration. Chapter 4, Troubleshooting, has information to assist you how to 8 Gigabytes (GBytes) in troubleshooting problems that may be of host adapters. Chapter 1, Introduction, provides general information about the Adaptec AHA-2740 Series of use the Adaptec AHA...
User Manual
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...Setting Up ..). device=c:\adaptec\aspidos.sys ..) and for number ..). ALL CAPITALS Used for text you locate specific information quickly. is only supported ..) and document reference (.. Numbered Step Marker The ® symbol marks the first in a series of special terms used throughout this manual and in SCSI literature in general. ... marks the end of the text for operator entry that must determine and type in body text (.. select Backup Device and ..). xii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. The Index helps you must be typed exactly as...
...Setting Up ..). device=c:\adaptec\aspidos.sys ..) and for number ..). ALL CAPITALS Used for text you locate specific information quickly. is only supported ..) and document reference (.. Numbered Step Marker The ® symbol marks the first in a series of special terms used throughout this manual and in SCSI literature in general. ... marks the end of the text for operator entry that must determine and type in body text (.. select Backup Device and ..). xii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. The Index helps you must be typed exactly as...
User Manual
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... to the system, data, and/or the user. Caution Failure to observe this type of advisory could result in damage to the user. Ì xiii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 0-xiii) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Failure...
... to the system, data, and/or the user. Caution Failure to observe this type of advisory could result in damage to the user. Ì xiii Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page 0-xiii) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Failure...
User Manual
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C (Page 1-1) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 1-1 1 Introduction About This Chapter Read this chapter to find out: • An overview of the AHA-2740 Series of EISA-to-Fast SCSI host adapters • The features of the AHA-2740 Series • The layout of the host adapter and all its major components • The default settings of the host adapter and how to disable or enable the on-board floppy controller • How to get help from Adaptec Technical Support Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
C (Page 1-1) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 1-1 1 Introduction About This Chapter Read this chapter to find out: • An overview of the AHA-2740 Series of EISA-to-Fast SCSI host adapters • The features of the AHA-2740 Series • The layout of the host adapter and all its major components • The default settings of the host adapter and how to disable or enable the on-board floppy controller • How to get help from Adaptec Technical Support Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
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...) bus. or 16-bit memory. the AHA-2740T and AHA-2742T are referred to -Fast SCSI host adapters in multi-tasking operating systems. Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. These transfers are the same except when regarding the on-board floppy controller on -board sequencer (SCSI PhaseEngine™) that transfers data into 8- Procedures...
...) bus. or 16-bit memory. the AHA-2740T and AHA-2742T are referred to -Fast SCSI host adapters in multi-tasking operating systems. Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. These transfers are the same except when regarding the on-board floppy controller on -board sequencer (SCSI PhaseEngine™) that transfers data into 8- Procedures...
User Manual
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... SCSI data rate • 10.0 MBytes/sec synchronous Fast SCSI data rate Maximum Off-loading the Host CPU • On-board sequencer (SCSI PhaseEngine) automates all SCSI protocol • Low SCSI processing overhead • Bus master DMA implementation • Task scheduling and message-based communication • Programmable interrupts • 32-, 16-, and 8-bit host bus data transfer 1-4 Adaptec AHA...
... SCSI data rate • 10.0 MBytes/sec synchronous Fast SCSI data rate Maximum Off-loading the Host CPU • On-board sequencer (SCSI PhaseEngine) automates all SCSI protocol • Low SCSI processing overhead • Bus master DMA implementation • Task scheduling and message-based communication • Programmable interrupts • 32-, 16-, and 8-bit host bus data transfer 1-4 Adaptec AHA...
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...disk array vendors Advanced Fast SCSI-2 Implementation • Concurrent support of Fast SCSI, synchronous and asynchronous devices • Concurrent support of both standard and Fast SCSI devices • Scatter/Gather operation • Simultaneous Target/Initiator • Fully multitasking/multithreading • Uses the superior SCSI-2 (Alternative 1) ...AHA-2740/2742 can be used to install up to seven SCSI devices • The AHA-2740T/2742T can be used to install up to 14 SCSI devices • The AHA-2742/2742T can be used to install up to two floppy diskette drives 1-5 Adaptec AHA-...
...disk array vendors Advanced Fast SCSI-2 Implementation • Concurrent support of Fast SCSI, synchronous and asynchronous devices • Concurrent support of both standard and Fast SCSI devices • Scatter/Gather operation • Simultaneous Target/Initiator • Fully multitasking/multithreading • Uses the superior SCSI-2 (Alternative 1) ...AHA-2740/2742 can be used to install up to seven SCSI devices • The AHA-2740T/2742T can be used to install up to 14 SCSI devices • The AHA-2742/2742T can be used to install up to two floppy diskette drives 1-5 Adaptec AHA-...
User Manual
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... User's Manual • The AHA-2740 Series BIOS fully supports the extended parti- J1 U1 J2 U2 J4 J3 U5 PIN 1 PIN 1 PIN 1 J5...for up to two drives and DOS 5.0 and above for up to seven drives per host adapter, eight total • The AHA-2740 Series supports both fixed and removable media devices with capacities above 1 Gigabyte (GByte) • Managers and device module software ...each component. Table 1-1 provides a description of the major components on the host adapter; Host Adapter Board Layout 1-6 Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
... User's Manual • The AHA-2740 Series BIOS fully supports the extended parti- J1 U1 J2 U2 J4 J3 U5 PIN 1 PIN 1 PIN 1 J5...for up to two drives and DOS 5.0 and above for up to seven drives per host adapter, eight total • The AHA-2740 Series supports both fixed and removable media devices with capacities above 1 Gigabyte (GByte) • Managers and device module software ...each component. Table 1-1 provides a description of the major components on the host adapter; Host Adapter Board Layout 1-6 Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev.
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... Connector Floppy Connector (AHA-2742/2742T only) SCSI Channel A Internal Connector Floppy Enable Jumper (AHA-2742/2742T only) SCSI Channel B Internal Connector (AHA-2740T/2742T only) SCSI Channel A External Connector Floppy Controller (AHA-2742/2742T only) ...Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. Introduction Location J1 J2 J3 J4 J5 J6 U1 U2 U5 U9 U10 Table 1-1. Host Adapter Default Settings Description Interrupt Level Bus Release Time Data FIFO Threshold Host Adapter BIOS Base Address Host Adapter SCSI ID SCSI Bus Parity Check SCSI Selection Timeout SCSI...
... Connector Floppy Connector (AHA-2742/2742T only) SCSI Channel A Internal Connector Floppy Enable Jumper (AHA-2742/2742T only) SCSI Channel B Internal Connector (AHA-2740T/2742T only) SCSI Channel A External Connector Floppy Controller (AHA-2742/2742T only) ...Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. Introduction Location J1 J2 J3 J4 J5 J6 U1 U2 U5 U9 U10 Table 1-1. Host Adapter Default Settings Description Interrupt Level Bus Release Time Data FIFO Threshold Host Adapter BIOS Base Address Host Adapter SCSI ID SCSI Bus Parity Check SCSI Selection Timeout SCSI...
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...The on-board floppy controller on the AHA-2742/2742T is enabled by default and is controlled by Jumper J4. • If your floppy diskette drives are ready to you directly, have the carrier note the damage on the board. In case of your computer. 1-8 Adaptec AHA-2740 Series User's... Manual Stock Number: 510381-00 / Rev. C (Page 1-8) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Caution The host adapter is responsible for any damage incurred during storage or shipment.
...The on-board floppy controller on the AHA-2742/2742T is enabled by default and is controlled by Jumper J4. • If your floppy diskette drives are ready to you directly, have the carrier note the damage on the board. In case of your computer. 1-8 Adaptec AHA-2740 Series User's... Manual Stock Number: 510381-00 / Rev. C (Page 1-8) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93 Caution The host adapter is responsible for any damage incurred during storage or shipment.