Adaptec 1742A, AHA-1740A, 1744 user manual Problems Using Two Scsi Drives

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EISA-to-Fast SCSI Host Adapter

Troubleshooting

Make sure that the SCSI drive to be used as drive D is set to SCSI ID 0:0. Check the drive manual for information on setting the SCSI ID for that device. The Return In- stalled Devices utility in the Onboard utilities can also be used to determine the SCSI addresses of peripherals on the SCSI bus.

Make sure that SCSI parity is consistently enabled or dis- abled on all devices on the SCSI bus.

Verify that the host adapter and the SCSI devices are properly configured and installed.

Power should be cycled OFF and ON after changing any values on a host adapter, setup program, or SCSI device to be sure that the new initial values are loaded.

Make sure that the SCSI bus is properly terminated.

Make sure that the disk has a DOS partition and a DOS format.

Check the cabling.

Problems Using Two SCSI Drives

The drives are configured as SCSI disk drive D and SCSI disk drive C.

Make sure that both standard fixed disks are mapped out of the system with the setup program.

Make sure that the SCSI drive to be used as drive D is set to SCSI ID 0:1 or 1:0. Check the drive manual for infor- mation on setting the SCSI ID for that device. The Return Installed Devices utility in the Onboard utilities can also be used to determine the SCSI addresses of pe- ripherals on the SCSI bus.

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Contents User’s Manual Page User’s Manual Copyright Iii Page Table of Contents Adaptec Glossary Index List of Tables List of FiguresPreface Bold ConventionsPage South milpitas blvd. ∙ milpitas, ca 95035 ∙408945-8600 General Product Information OverviewAdaptec EISA-to-Fast Scsi Host Adapter Overview AHA 1740A/1742A/1744 Program Files Installation SoftwareAHA 1740A/1742A/1744 Operation Modes Bios Operation ModesSystem Caching Description AHA-1740A/1742A/1744 Product Specifications Product SpecificationsAssociated Documentation ∙ Installation Guide∙ Technical Reference Manual Unpacking and Inspection Hardware InstallationPreparation Scsi Device Termination Scsi TerminatorsScsi ID Scsi ParityPhysical Installation in the System Adaptec Enhanced Mode Standard ModeMultiple Host Adapter Support Standard and Enhanced Modes Running the ADL Program Adaptec Download UtilityHost Adapter Listing ADL Main Menu Download Firmware Screen Download FirmwareDownload Warning Message Screen Firmware Information Enhanced Mode Firmware InformationLow-Level Format Device Selection Screen Low-Level FormatLow-Level Format Option Selection Screen Low-Level Format Options screen displaysExiting the ADL Program Exiting the ADL ProgramPage Standard Mode Operation Host Adapter Bios OperationAdaptec Enhanced Bios Boot Message Enhanced Mode OperationBoot Message With Error Detection Enabled Determining Problems Using the LED TroubleshootingAHA 1740A/1742A/1744 LED Flash Codes Problems Detected During InstallationEISA-to-Fast Scsi Host Adapter Troubleshooting Problems Using a Scsi and a Standard Disk Drive Problems Booting the System from a Scsi DriveProblems Using Two Scsi Drives Adaptec Disk Drives Over 1 Gigabyte Extended Translation Using DOSDOS 1 Gigabyte Limit Using Extended Translation When to Use Extended Translation With DOS Version 5 OnlyDrives With Mixed Partitions Questions and Answers About Extended Translation Using FdiskLoad ASW-1410 v3.0a Adaptec DOS/Windows Loading the I/O Operating Environment SoftwareOS/2 Novell NetWareUnix Glossary Command Control Block Bus Device ResetCommand Descriptor Block Asynchronous Event NotificationConfiguration Common Command SetDirect Memory Access Control MicroprocessorFirmware Enhanced ModeHost IBM PC-AT Compatible Host AdapterIndustry Standard Architecture InitiatorMailbox Out MailboxManager Multi-tasking OperationScsi Device Scatter/GatherSingle-Ended Single-Threaded OperationSynchronous Data Transfer Standard ModeSynchronous Data Transfer Negotiation Tagged QueuingIndex AHA-1740A/1742A/1744 Index-2 Index-3 AHA-1740A/1742A/1744 Index-4