LSI Logic SYM22801 - Manual

Contents vii 2.7 Connecting Additional Internal SCSI Devices 2-12 2.8 Multiple Internal SCSI Devices Chained Together 2-13 2.9 Using Both Internal Connectors on a Channel 2-14 2.10 SCSI LED Connectors 2-15 2.11 External Cable to Host Adapter 2-16 2.12 External Cable to External SCSI Device 2-17 2.13...

Preface ix Preface This book is the primary reference and User’s Guide for the LSI Logic Symbios™ SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter. It contains a complete functional description for the SYM22801 and includes complete physical and electrical specifications for the SYM22801. Audien...

x Preface • Appendix B, Glossary of Terms and Abbreviations , provides definitions of various terminology that is referenced throughout this user’s guide. Related Publications PCI SCSI Device Management System SDMS 4.0 User’s Guide, Document No. DB15-000099-01

Symbios SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter 1-1 Chapter 1Using the SYM22801 Host Adapter This chapter describes how the SYM22801 Host Adapter interfaces to PCI computer systems and includes these topics: • Section 1.1, “General Description,” page 1-1 • Section 1.2, “Features,” page ...

Interface Descriptions 1-3 1.3 Interface Descriptions This section provides a more detailed explanation about the PCI Interface, The SCSI Interface, and Ultra SCSI. 1.3.1 The PCI Interface PCI is a high-speed standard local bus for interfacing a number of I/O components to the processor and memory s...

Symbios SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter 2-1 Chapter 2Installing the SYM22801 Host Adapter This chapter provides instructions on how to install the SYM22801 Host Adapter and includes these topics: • Section 2.1, “Quick Installation Procedure,” page 2-1 • Section 2.2, “Detailed In...

2-2 Installing the SYM22801 Host Adapter Caution: Ground yourself by touching a metal surface before handling boards. Static charges on your body can damage electronic components. Handle plug-in boards by the edge; do not touch board components or gold connector contacts. The use of a static ground ...

Detailed Installation Procedure 2-3 Step 10. Replace the cabinet cover as described in the user’s manual for your computer. Step 11. Make all external SCSI bus connections. Remember: The SCSI bus requires proper termination, and no duplicate SCSI IDs. Step 12. Finally, refer to the PCI SCSI Device M...

Detailed Installation Procedure 2-5 Figure 2.1 Hardware Connections for the SYM22801 Host Adapter Step 6. Carefully insert the edge connector J1 (see Figure 2.1) of the host adapter into the PCI slot. Make sure the edge connector is properly engaged before pressing the board into place as shown in F...

2-6 Installing the SYM22801 Host Adapter Figure 2.2 Inserting the Host Adapter Step 8. The bracket around the connectors J3 and J7 (see Figure 2.1) should fit where you removed the blank panel. Secure it with the bracket screw (see Figure 2.2) before making the internal and external SCSI bus connect...

Detailed Installation Procedure 2-7 All external SCSI bus connections to the SYM22801 host adapter are made with shielded, 68-conductor cables (see Figure 2.3). The connectors on this cable are always keyed to ensure proper pin-1 connection. Figure 2.3 SCSI Cables Important: You can connect up to si...

2-8 Installing the SYM22801 Host Adapter 3 meters (total internal and external cable lengths), even with fewer than four devices. The SYM22801 autotermination scheme is designed to operate properly when plugging the end connector of the SCSI cables into the SYM22801 SCSI connectors. If you connect t...

2-12 Installing the SYM22801 Host Adapter Figure 2.7 Connecting Additional Internal SCSI Devices

Detailed Installation Procedure 2-13 Figure 2.8 Multiple Internal SCSI Devices Chained Together Step 5. It is also possible to use both internal connectors on a channel if you do not attach any external devices to that channel. An example of this configuration is shown in Figure 2.9.

2-14 Installing the SYM22801 Host Adapter Figure 2.9 Using Both Internal Connectors on a Channel Note: When two connectors are already used on a channel, the third connector cannot be used. Step 6. Most PC cabinets are designed with a front panel LED (sometimes already connected to an existing IDE d...

Detailed Installation Procedure 2-15 Figure 2.10 SCSI LED Connectors Some LED cables have only two wires. In this case, place the connector on one end or the other of J5 or J9. If the LED does not light during SCSI bus activity from this host adapter, you may have to rotate the LED cable 180 ° on J5...

2-16 Installing the SYM22801 Host Adapter Figure 2.11 External Cable to Host Adapter Step 2. Plug the 68-pin connector on the other end of the shielded external SCSI cable into the SCSI connector on your external SCSI device. An example of this connection is shown in Figure 2.12.

Detailed Installation Procedure 2-17 Figure 2.12 External Cable to External SCSI Device Step 3. To connect more than one external SCSI device to the host adapter, you must chain them together with shielded external SCSI cables. An example of these chained connections is shown in Figure 2.13.

2-18 Installing the SYM22801 Host Adapter Figure 2.13 Multiple External SCSI Devices Chained Together 2.3 SCSI Bus Termination The devices making up the SCSI bus are connected serially (chained together) with SCSI cables. The first and last physical SCSI devices connected on the ends of the SCSI bus...

SCSI Bus Termination 2-19 The peripheral device terminators are usually set with jumpers, resistor modules, or with a switch on the peripheral. Refer to the peripheral manufacturer’s instructions and to the user’s manual for your computer for information on how to identify the terminator setting of ...

2-20 Installing the SYM22801 Host Adapter Figure 2.14 shows an example of how termination is determined for this SCSI bus configuration. Figure 2.14 Internal SCSI Device Termination 2.3.2 External SCSI Connections If only external SCSI device connections to the host adapter have been made, you must ...

SCSI Bus Termination 2-21 Figure 2.15 External SCSI Device Termination 2.3.3 Internal and External SCSI Connections If you have internal and external SCSI device connections to the host adapter, you must terminate the last internal and external devices on the SCSI bus. You must disable the terminati...

2-22 Installing the SYM22801 Host Adapter Figure 2.16 Internal and External SCSI Device Termination 2.3.4 Internal SCSI Connections for Both Internal Connectors If you have internal SCSI device connections to both internal connectors of a channel, you must terminate the internal devices on each end ...

SCSI Bus Termination 2-23 Figure 2.17 shows an example of how termination is determined for this SCSI bus configuration. If you connect the SYM22801 in the middle of the bus, you will incur improper termination since the switches are not assigned on that bus correctly. Figure 2.17 Internal and Inter...

SCSI Bus Termination 2-25 Figure 2.18 Termination Override Switch Settings for U1 and U2 2.3.5 Setting SCSI IDs You must set each SCSI device and the host adapter to a separate SCSI ID, 0 through 15. SCSI ID 7 is the preset host adapter setting, giving it the highest priority on the SCSI bus. If you...

2-26 Installing the SYM22801 Host Adapter The peripheral device SCSI IDs are usually set with jumpers or with a switch on the peripheral. Refer to the peripheral manufacturer’s instructions and to the user’s manual for your computer to determine the ID of each device and how to change it. You must h...

Setting Interrupts 2-27 2.4 Setting Interrupts You should not normally have to change the default interrupt routing for the SYM22801, since performance is usually increased by having two separate interrupts. However, if your system does not support two separate interrupts, jumper TP9 (see Figure A.1...

2-28 Installing the SYM22801 Host Adapter 2.5 Completing Your Installation Before replacing the cover on your computer, review this installation procedure check list. This will save you effort later. Step 1. Replace the cabinet cover on your computer. Step 2. Plug in all power cords, and switch on p...

Symbios SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter 3-1 Chapter 3Configuring the Host Adapter This chapter discusses how to change configuration settings and includes these topics: • Section 3.1, “When to Configure the SYM22801 Host Adapter,” page 3-1 • Section 3.2, “Starting the SCSI BIOS ...

3-2 Configuring the Host Adapter 3.2 Starting the SCSI BIOS Configuration Utility If you have SCSI BIOS version 4.xx, and it includes the Symbios SCSI BIOS Configuration Utility, you can change the default configuration of your SCSI host adapters. You may decide to alter these default values if ther...

Starting the SCSI BIOS Configuration Utility 3-3 Important: This SCSI BIOS Configuration Utility is a powerful tool. If, while using it, you somehow disable all of your controllers, pressing Ctrl-A (or Ctrl-E on version 4.04 or later) after memory initialization during reboot allows you to re-enable...

3-4 Configuring the Host Adapter Below the list of host adapters on the Main Menu display, you see eight options. They are described in detail below. If these settings are altered, the system will reboot after the Quit option is selected, which allows the user to exit from the Configuration Utility....

3-6 Configuring the Host Adapter 3.2.1.6 Language If enabled, the Language option allows you to select from five languages for the configuration utility: English, German, French, Italian, and Spanish. 3.2.1.7 Help The Help option allows the user to bring up a help screen with information about the M...

3-8 Configuring the Host Adapter Note: When disabling parity checking, it is also necessary to disable disconnects for all devices, as parity checking for the reselection phase is not disabled. If a device does not generate parity, and it disconnects, the I/O never completes because the reselection ...

Starting the SCSI BIOS Configuration Utility 3-9 With Media Installed provides removable media support wherever the drive(s) actually resides. One of these choices can be selected by highlighting it and pressing Enter. CHS Mapping – This option defines the cylinder head sector (CHS) values that will...

Exiting the SCSI BIOS Configuration Utility 3-13 Verify – This option allows the user to read all the sectors on a disk looking for errors. When selected, this option displays the following message: “Verify all sectors on the device Press ESC to abort Else press any key to continue” Help – This opti...

A-1 Appendix ATechnical Specifications This section discusses the physical environment associated with the SYM22801 Host Adapter. It includes a mechanical drawing of this board, which is shown in Figure A.1. It also includes these topics: • Section A.1, “Physical Environment,” page 1-1 • Section A.2...

A-2 Technical Specifications Figure A.1 SYM22801 Mechanical Drawing A.2 Electrical Characteristics The SYM22801 maximum power requirements, including SCSI TERMPWR, under normal operation are as follows: Under abnormal conditions such as a short on SCSI TERMPWR, + 5 V current may be higher. At temper...

Operational Environment A-3 A.2.1 Thermal, Atmospheric Characteristics The board is designed to operate in an environment defined by the following parameters: • Temperature range: 0–55 ° C (dry bulb) • Relative humidity range: 0–90% (noncondensing) • Maximum dew point temperature: 32 ° C A.2.2 Elect...

A-8 Technical Specifications Table A.4 SCSI Connectors J4/J8 Signal Name Pin Signal Name Pin GND 1 SD0/ 2 GND 3 SD1/ 4 GND 5 SD2/ 6 GND 7 SD3/ 8 GND 9 SD4/ 10 GND 11 SD5/ 12 GND 13 SD6/ 14 GND 15 SD7/ 16 GND 17 SDP/ 18 GND 19 GND 20 GND 21 CPRSNT_C/ 1 1. CPRSNT_C/ is used to sense the connection of ...

Operational Environment A-9 A.3.3 The LED Interface The LED interface on the SYM22801 is a four-wire arrangement that allows the user to connect an LED harness to the board. The GPIO0_FETCH line (maximum output low voltage 0.4 V and minimum output low current 16 mA) is pulled low to complete the cir...

Glossary of Terms and Abbreviations B-1 Appendix BGlossary of Terms and Abbreviations Address A specific location in memory, designated either numerically or by a symbolic name. Asynchronous Data Transfer A method of transmission which does not require a common clock, but separates fields of data by...

B-2 Glossary of Terms and Abbreviations Configuration Refers to the way a computer is set up; the combined hardware components (computer, monitor, keyboard, and peripheral devices) that make up a computer system; or the software settings that allow the hardware components to communicate with each ot...

Glossary of Terms and Abbreviations B-3 Firmware Software that is permanently stored in ROM. Therefore, it can be accessed during boot time. Hard Disk A disk made of metal and permanently sealed into a drive cartridge. A hard disk can store very large amounts of information. Host The computer system...

B-6 Glossary of Terms and Abbreviations SCSI ID A way to uniquely identify each SCSI device on the SCSI bus. Each SCSI bus has eight available SCSI IDs numbered 0 through 7 (or 0 through 15 for Wide SCSI). The host adapter usually gets ID 7 giving it priority to control the bus. SDMS SCSI Device Man...

IX-1 Index A active termination single-ended SCSI 1-3 , A-6 adapter configuration menu example 3-5 adapter setup menu CHS mapping 3-9 example 3-7 host SCSI ID 3-8 parity 3-7 removable media support 3-8 SCAM support 3-7 scan order 3-8 spinup delay 3-9 additional adapter configuring 3-5 alternate CHS ...

Customer Feedback We would appreciate your feedback on this document. Please copy the following page, add your comments, and fax it to us at the number shown. If appropriate, please also fax copies of any marked-up pages from this document. Impor tant: Please include your name, phone number, fax num...

Customer Feedback Reader’s Comments Fax your comments to: LSI Logic CorporationTechnical PublicationsM/S E-198Fax: 408.433.4333 Please tell us how you rate this document: Symbios™ SYM22801 Dual Channel PCI to Ultra SCSI Host Adapter User’s Guide. Place a check mark in the appropriate blank for each ...