Adaptec 1742A User Manual Download Page 6

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Summary of Contents for 1742A

Page 1: ...AHA 1740A 1742A 1744 EISA to Fast SCSI Host Adapter User s Manual...

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Page 3: ...AHA 1740A 1742A 1744 EISA to Fast SCSI Host Adapter User s Manual...

Page 4: ...rade mark of Microsoft Corporation Novell and NetWare are registered trademarks of Novell Inc Phoenix is a registered trademark of Phoenix Technologies Inc SCO is a registered trademark of The Santa C...

Page 5: ...computer manufacturer for technical assistance If you are an OEM contact your local Adaptec sales office If you wish to contact Adaptec by telephone directly our technical support phone num ber is 408...

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Page 7: ...tallation Unpacking and Inspection 2 1 Preparation 2 2 SCSI Terminators 2 3 SCSI Parity 2 4 SCSI ID 2 4 Physical Installation in the System 2 5 Chapter Three Using the Configuration Utility EISA Confi...

Page 8: ...17 Enable Disconnection 3 18 Maximum Synch Xfer Rate 3 19 Chapter Four Multiple Host Adapter Support Standard Mode 4 1 Enhanced Mode 4 1 Standard and Enhanced Modes 4 2 Chapter Five Adaptec Download...

Page 9: ...Gigabyte Extended Translation Using DOS 5 A 1 The DOS 1 Gigabyte Limit A 1 When to Use Extended Translation A 2 With DOS Version 5 Only A 2 Drives With Mixed Partitions A 2 Using Extended Translation...

Page 10: ...essage Screen 5 5 Figure 5 5 Enhanced Mode Firmware Information 5 6 Figure 5 6 Low Level Format Device Selection Screen 5 7 Figure 5 7 Low Level Format Option Selection Screen 5 8 Figure 5 8 Exiting t...

Page 11: ...ur Multiple Host Adapter Support explains how more than one host adapter can be used in an EISA system Chapter Five Adaptec Download Utility explains firmware download procedure which is available for...

Page 12: ...cdrom tsd and for screen messages En ter Password Helvetica Italics Used as a place holder for text you must determine and type in enter nn for number Also used for program and file names in body text...

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Page 14: ...Printed in Singapore STOCK NO 510215 00 Rev B LL 8 93 691 south milpitas blvd milpitas ca 95035 408 945 8600...

Page 15: ...Most of the SCSI drives on the market today are of this type The AHA 1744 Host Adapter is a differential SCSI host adapter that supports differential type SCSI devices The use of differential SCSI dri...

Page 16: ...ves can be used under DOS without the use of device drivers Up to seven SCSI fixed disk drives can be used without a driver if MS DOS 5 0 or higher is used Booting is also supported by the BIOS in the...

Page 17: ...arious configuration options These options are changed via the EISA Configuration utility provided with every EISA system The AHA 1740A 1742A 1744 does have a jumper that is used to determine whether...

Page 18: ...le for use with the AMI EISA configuration utility adl exe Adaptec download utility standard hex Standard mode microcode AHA 1744 only enhanced hex Enhanced mode microcode AHA 1744 only sys err dta Su...

Page 19: ...sec Addresses up to 16 MBytes host RAM Addresses up to 4 Gigabytes host RAM AHA 1540 series mailbox structure compatible with AHA 1540 software New high performance mailbox structure Supports Fast SCS...

Page 20: ...X DOS and Windows have built in cache and caching the same data in the operating system and on the host adapter can bog down system performance Overall system performance is increased by increasing th...

Page 21: ...ments 5 0 0 25 Volts at 2 9 Amps maximum Environmental Requirements Temperature 40 75 C operating or storage Reliability Information Mean Time Between Failures MTBF 100 000 hours calculated per Mil Ha...

Page 22: ...l exe is also described Technical Reference Manual It includes a detailed description of the host adapter including jumper information mailbox interface descrip tion and troubleshooting hints Both the...

Page 23: ...can be initiated After opening the shipping container use the packing slip to ver ify receipt of the individual items listed on the slip Retain the shipping container and packing material for possibl...

Page 24: ...is not used this jumper should be removed Only one floppy controller per EISA system can be enabled The AHA 1740A 1742A 1744 has a jumper that can be changed This is the jumper block labeled J4 near...

Page 25: ...f SCSI device connections to the AHA 1740A 1742A 1744 Host Adapter The AHA 1740A 1742A 1744 is a SCSI device and has socketed on board terminators that should be removed if both the internal and exter...

Page 26: ...always generates SCSI parity SCSI parity checking can be enabled or disabled via the EISA Configuration utility If any attached SCSI device does not gener ate SCSI parity then parity checking for that...

Page 27: ...ing pin 1 on the host adapter and on the SCSI cable carefully insert the connector located at the end of the long end of the cable into the host adapt er connector After ensuring that all pins are lin...

Page 28: ...40A 1742A requires single ended devices The AHA 1744 requires differential devices Failure to match drive types can result in electrical damage to the host adapter and the peripherals 7 Carefully rein...

Page 29: ...nd BIOS addresses Enhanced Mode An EISA system supports up to a maximum of twelve AHA 1740A 1742A 1744 adapters in enhanced mode limited by the number of available EISA bus master supporting slots Eac...

Page 30: ...igu ration options for the SCSI Device Configuration are changed with the EISA Configuration utility then the BIOS for that host adapter should be enabled the host adapter BIOS reads that con figurati...

Page 31: ...disk drives con nected to the AHA 1740A 1742A 1744 Using this program to download the microcode is not necessary when the host adapter is initially installed The host adapter is shipped with the stand...

Page 32: ...e program type adl The first screen displays If the program does not properly display on a monochrome or VGA monitor you can type adl m or adl mono to run the program in monochrome mode If the screen...

Page 33: ...re can be downloaded regardless of the current operation mode of the AHA 1744 Select the desired host adapter and press Enter The Main Menu displays Three options are available and each option is desc...

Page 34: ...t adapter Enter standard hex for standard mode and enhanced hex for enhanced mode The Mode field must be set to standard to download the standard mode microcode and enhanced to download enhanced mode...

Page 35: ...he download can take up to 45 seconds to complete Once completed the screen displays the Download Complete mes sage Press Esc to continue Note The type of firmware download standard or enhanced does n...

Page 36: ...stand ard mode only information on the standard mode firmware is dis played If the AHA 1740A 1742A 1744 is operating in the enhanced mode only information on the enhanced mode firmware is displayed Th...

Page 37: ...boot sector of attached SCSI fixed disks on the AHA 1740A 1742A 1744 When selected all attached SCSI devices are displayed Select a device and press the Enter key Figure 5 6 Low Level Format Device S...

Page 38: ...Format Unit command is complete the SCSI Verify command is sent to verify the data on the media WARNING Selecting Erase Boot Sector causes the host adapter card to write data to the boot sector of the...

Page 39: ...the ADL Program To exit the adl program press the Esc key and the following screen displays Select Yes to exit Figure 5 8 Exiting the ADL Program EISA to Fast SCSI Host Adapter Adaptec Download Utili...

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Page 41: ...e only SCSI IDs 0 and 1 are supported The fixed disk that is configured as SCSI ID 0 is the boot disk drive The BIOS only looks for a disk at SCSI ID 1 if a disk drive was found at SCSI ID 0 and no no...

Page 42: ...should be used when using the AHA 1740A 1742A 1744 in standard mode since a check is not made for the type of device being installed For example if a SCSI tape drive is installed at SCSI ID 0 the AHA...

Page 43: ...e installed However the SCSI Inquiry data the manufacturer and model number for these devices is shown The following message appears when you boot the computer sys tem with the enhanced mode operation...

Page 44: ...mode does not support the removing of media during system operation If the media is removed while the system is operating data loss could occur Removable media under DOS should be installed with Adap...

Page 45: ...activity on the SCSI bus or I O port If the self test diagnostics fails the LED will flash a code indicating the type of test failure The LED will flash once twice in rapid succession or three times...

Page 46: ...maged components there are no broken wires and no conductive debris is on the host adapter If no physical damage is found return the AHA 1740A 1742A 1744 for repair to the dealer or distributor where...

Page 47: ...AHA 1740A 1742A 1744 BIOS message does not display on the screen then the computer system is not recognizing the host adapter Check the AHA 1740A 1742A 1744 BIOS address to ensure it is not conflicti...

Page 48: ...led on all devices on the SCSI bus Verify the proper installation and configuration of the host adapter and SCSI devices Power should be cycled OFF and ON after changing any values on a host adapter s...

Page 49: ...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 th...

Page 50: ...ency Check termination Check cable length and integrity If host adapter and drive LED remain on during a hang condition make sure that the SCSI drive conforms to the Common Command Set Revision 4B CCS...

Page 51: ...d translation for the AHA 1740A 1742A 1744 This new feature bypasses the DOS disk capacity limit and supports disk drives up to 8 Gigabytes in size under DOS providing room for years of disk drive evo...

Page 52: ...ifferent operating systems Use standard translation The sum of the DOS partitions will be less than 1 Gigabyte Partitions for UNIX and NetWare can be larger than 1 Gigabyte when using standard transla...

Page 53: ...742A Questions and Answers About Extended Translation What happens if I enable extended translation with SCSI drives that are less than 1 Gigabyte in capacity Drives handled by the BIOS will use exten...

Page 54: ...ny driver that does not identify itself as capable of extended translation If you need to use software that is not compatible with extended translation do not enable extended translation Adaptec s ASW...

Page 55: ...n Advanced Configuration Options and do not re move the media while your computer power is on Additional software is required if you desire to do the following Treat removable media devices as removab...

Page 56: ...include the Adaptec I O Operating Environment and do not require additional software To use the AHA 1740A 1742A 1744 under OS 2 1 3 follow the in structions in the ASW 1220 1420 version 1 3 software p...

Page 57: ...B The enhanced high performance Adaptec host adapter for connect ing SCSI devices and standard IBM compatible floppy disk devices to the PC AT backplane bus AHA 1740A 42A 44 Either the AHA 1740A 1742A...

Page 58: ...normally the small est addressable unit of a memory and the unit of transfer on the SCSI bus CCB See Command Control Block CCS See Common Command Set CDB See Command Descriptor Block Command Control...

Page 59: ...sociated with the board is known as a Manager DMA See Direct Memory Access Differential A term referring to the electrical characteristics of the signals used on the SCSI bus interface Differential si...

Page 60: ...sions of ASPI manag ers and drivers EPROM Erasable Programmable Read Only Memory An integrated cir cuit used to store the host adapter BIOS FIFO First In First Out A queuing order in which items are r...

Page 61: ...PC AT compatible machines use a backplane bus that very closely emulates the function of the back plane bus of the PC AT Because of the broad usage of this bus structure it has become known as the Ind...

Page 62: ...e started by the host adapter Manager The component of a driver which is specific to a particular board architecture and presents a standard ASPI pass through inter face for use by the peripheral spec...

Page 63: ...of the condition described by the sense information SCSI Device A device attached to a Small Computer System Interface bus cable The device may be an initiator a target or capable of both types of op...

Page 64: ...or and the target that allows the negotiation of the data transfer frequency and delay between requests and acknowledgments required for synchronous data transfer Once negotiated synchronous data tran...

Page 65: ...election 3 8 BIOS limitations 3 9 BIOS operation 6 1 6 3 BIOS support 3 16 Boot errors 7 4 Boot screen 6 3 Bus Master 1 1 Bus mastering 1 1 Bus reset 3 10 C Cable orientation 2 5 Caching 1 6 Checksum...

Page 66: ...port 3 16 disconnect reconnect 3 18 host adapter support 4 1 microcode information 5 5 parity checking 3 17 start command 3 17 synchronous transfer rate 3 19 transfer negotiation 3 17 Error reporting...

Page 67: ...nfiguration utility 3 1 Microcode filename 5 5 Multiple host adapters 4 1 N Non SCSI drives installation errors 7 5 O Operation mode 1 2 1 5 Overlay files 1 4 3 1 P Parity checking 3 17 Phoenix config...

Page 68: ...CSI ID selection 3 10 Single ended device 1 1 Standard mode 3 13 BIOS operation 6 1 disconnect reconnect 3 14 host adapter support 4 1 parity checking 3 13 selection 3 13 transfer negotiation 3 14 Sys...

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