LSI 20860 инструкция обслуживания

® S14033.A LSI20860 PCI to Ultra SCSI Host Adapter USER’S GUIDE January 2001 V ersion 1.1[...]

ii Electroma gnetic Compatibility Notices This device complies with P art 15 of the FCC Rules. Operation is subject to the f ollowing two conditions: 1. This device ma y not cause harmful interference , and 2. This device m ust accept any interf erence receiv ed, including interference that ma y cause undesired operation. This equipment has been te[...]

iii This document contains proprietar y information of LSI Logic Cor poration. The inf or mation contained herein is not to be used by or disclosed to third parties without the e xpress written per mission of an officer of LSI Logic Cor poration. LSI Logic products are not intended for use in lif e-suppor t appliances, devices , or systems. Use of[...]

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Pref ace v Preface This book is the primar y reference and user’ s guide for the LSI Logic LSI20860 PCI to Ultra SCSI Host Adapter . It contains a complete functional description for the LSI20860 and includes complete ph ysical and electrical specifications for the LSI20860. A udience This document assumes that you ha v e some f amiliarity with [...]

vi Pref ace Related Publications LSI53C860 PCI to Ultra SCSI I/O Processor Data Manual , Order Number T09962 PCI Storage De vice Management System SDMS 4.0 User’ s Guide , Order Number S14007.A Revision Recor d Revision Date Remarks 1.0 11/99 Final version. 1.1 01/01 All product names changed from SYM to LSI.[...]

Contents vii Contents Chapter 1 Using the LSI20860 1.1 General Description 1-1 1.1.1 F eatures 1-1 1.1.2 Ph ysical Environment 1-3 1.2 Installing the LSI20860 1-5 1.3 Connecting SCSI De vices 1-7 1.3.1 Internal SCSI Bus Connections 1-8 1.3.2 External SCSI Bus Connections 1-9 1.3.3 SCSI Bus T ermination 1-10 1.3.4 Setting SCSI IDs 1-12 1.4 T roub le[...]

viii Contents[...]

LSI20860 PCI to Ultra SCSI Host Adapter 1-1 Chapter 1 Using the LSI20860 This chapter contains instructions and illustrations to help you install a LSI20860 PCI to Ultra SCSI host adapter board into a PCI computer system. It includes these topics: • Section 1.1, “General Description, ” page 1-1 • Section 1.2, “Installing the LSI20860, ”[...]

1-2 Using the LSI20860 1.1.1.2 SCSI Interface • Suppor ts 8-bit Single-Ended (SE) signaling only • A utomatically enables SE termination • Suppor ts SCSI ter mination power (TERMPWR) source • Exter nal: 50-pin high density; Internal: 50-pin low density connectors • Provides Ultra SCSI synchronous tr ansf er capability up to 20 Mbytes/s 1.[...]

General Description 1-3 Figure 1.1 LSI20860 Board Har dware 1.1.2 Physical En vir onment This section discusses the ph ysical, electrical, ther mal, and safety characteristics of the LSI20860. Additionally , this board is compliant with Class B electromagnetic standards set by the FCC . 1.1.2.1 Physical Characteristics The dimensions of the LSI2086[...]

1-4 Using the LSI20860 The component height on the top and bottom of the board conf or ms to the PCI Specification. 1.1.2.2 Electrical Characteristics The LSI20860 maximum po wer requirement, including SCSI TERMPWR, under nor mal operation is: Under abnor mal conditions such as a shor t on SCSI TERMPWR, +5 V current ma y be higher . At temperature[...]

Installing the LSI20860 1-5 1.1.2.5 Safety Characteristics The bare board meets or e xceeds the requirements of UL flammability rating 94 V0. The bare board is also marked with the supplier’ s name or trademark, type, and UL flammability rating. Since this board is installed in a PCI bus slot, all v oltages are below the SEL V 42.4 V limit. 1.2[...]

1-6 Using the LSI20860 Note: Notice that the components on a PCI host adapter f ace the opposite wa y from non-PCI adapter boards you hav e in your system. This is correct, and the board is k eyed to go in only one wa y . Step 7. The brack et around the e xter nal connector J3 should fit where the blank panel w as remov ed. Secure it with the brac[...]

Connecting SCSI De vices 1-7 Figure 1.2 Inserting the Host Adapter 1.3 Connecting SCSI Devices The main connections to SCSI de vices inv olve two types of connectors: • Inter nal 50-pin SCSI connector • Exter nal 50-pin SCSI connector The ne xt sections provide more detailed inf or mation. Brack et Screw[...]

1-8 Using the LSI20860 1.3.1 Internal SCSI Bus Connections This section provides step-b y-step instructions about making inter nal SCSI bus connections . Step 1. T o connect an inter nal SCSI de vice, plug the 50-pin connector on one end of the SCSI ribbon cable into the connector J2 (see Figure 1.3 ). The ribbon cable included in y our LSI20860 ki[...]

Connecting SCSI De vices 1-9 Figure 1.3 Internal SCSI Devices Chained T ogether 1.3.2 External SCSI Bus Connections This section provides step-b y-step instructions about making external SCSI bus connections . Step 1. T o connect external SCSI de vices to the LSI20860, plug the 50-pin connector on one end of a shielded SCSI cable into the host adap[...]

1-10 Using the LSI20860 Step 2. Plug the 50-pin connector on the other end of the SCSI cable into the SCSI connector on the peripheral device . This connection is shown in Figure 1.4 . Step 3. T o connect more than one device to the LSI20860, use shielded cables to chain them together as illustr ated in Figure 1.4 . Figure 1.4 Multiple External Dev[...]

Connecting SCSI De vices 1-11 are connected serially (chained together) with SCSI cables. The first and last ph ysical de vices connected on the ends of the SCSI bus m ust hav e these ter minators enabled. All other SCSI de vices on the bus must ha v e their ter minators remov ed or disabled. T er mination on the LSI20860 is automatically enabled [...]

1-12 Using the LSI20860 1.3.4 Setting SCSI IDs Each de vice on the SCSI bus , including the host adapter , must hav e a unique SCSI ID from 0 through 7. SCSI ID 7 is the preset host adapter setting, giving it the highest prior ity on the SCSI bus . Ref er to your peripheral de vice documentation for instructions on how to determine and change the I[...]

T roubleshooting 1-13 The device driver does not see one of the SCSI de vices. 1. Reboot the computer . 2. Make sure the SCSI de vices hav e different ID numbers (the boot drive should ha ve the lo west ID). 3. Make sure both ends, b ut only the ends, of the SCSI b us are ter minated. 4. Check the cable and po wer connections .[...]

1-14 Using the LSI20860[...]

LSI20860 PCI to Ultra SCSI Host Adapter A-1 Appendix A Glossary of T erms and Abbre viations Bus A collection of unbroken signal lines across which inf or mation is transmitted from one par t of a computer system to another . Connections to the bus are made using taps or connectors on the lines . Bus Mastering A high-perf ormance wa y to transf er [...]

A-2 Glossar y of T er ms and Abbre viations Host Adapter A circuit board or integrated circuit that pro vides a SCSI bus connection to the computer system. Internal SCSI Device A SCSI de vice installed inside the computer cabinet. These devices are connected in a continuous chain using an unshielded ribbon cable . IRQ Interrupt Request Channel. A p[...]

Glossar y of T er ms and Abbre viations A-3 P or t Number See P or t Address. RAM Random Access Memor y . The computer’ s pr imar y working memor y in which program instructions and data are stored and are accessib le to the CPU . Information can be wr itten to and read from RAM. The contents of RAM are lost when the computer is tur ned off . ROM[...]

A-4 Glossar y of T er ms and Abbre viations Single-Ended SCSI A hardware specification f or connecting SCSI devices . It ref erences each SCSI signal to a common ground. This is the most common method (as opposed to diff erential SCSI which uses a separate ground f or each signal). T ermination The electrical connection required at each end of the[...]

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