External SCSI Cabling and Termination | Sun Microsystems 220R

If you exceed these bus length restrictions, UltraSCSI devices may operate at less than 40 Mbytes per second. Under such conditions, an UltraSCSI device may experience errors that eventually cause it to reset and operate at 20 Mbytes per second.

For fast/wide performance on the external SCSI bus, the maximum SCSI bus length for daisy-chained SCSI devices is 19.7 feet (6 meters), including the Sun Enterprise 220R server internal bus length 2.952 feet (0.9 meter).

External UltraSCSI-compliant SCSI cables have an impedance of 90 ohm (+/- 6 ohm) and are required for UltraSCSI interface. Sun’s implementation of UltraSCSI requires that the total SCSI bus length be limited to no more than approximately 20 feet

(6 meters) with up to 12 Sun compensated devices.

Due to the short bus length, an approximately 31.5-inch (0.8-meter) UltraSCSI- compliant external cable is supported (part number 530-2883) in addition to a 2.2- yard (2-meter) UltraSCSI-compliant external cable (part number 530-2884).

External SCSI Cabling and Termination

Use the following cabling guidelines to ensure proper device cabling and termination on the external SCSI bus:

■In order to maintain UltraSCSI performance, all cables used must be UltraSCSI-compliant.

■The external SCSI bus must be correctly terminated. Most Sun devices use autotermination. See the documentation supplied with the device.

■If all external mass storage devices use 68-pin connectors, connect all non-Sun devices to the system first and connect a Sun autoterminating device to the end of the chain.

■If external mass storage devices consist of 68-pin devices and 50-pin devices, connect the Sun 68-pin devices to the system first and terminate the chain with a 50-pin device and its terminator. The 68-pin device connected to the 68-50 pin adapter cable must be autoterminating in order to terminate the high-order bits.

Caution –Do not connect 68-pin devices after 50-pin devices; SCSI bus errors will occur.

Chapter 4 Hardware Configuration 85

Image 113

Sun Microsystems 220R manual External SCSI Cabling and Termination

Contents

Sun Microsystems, Inc Sun Enterprise 220R Server Owner’s Guide Please Recycle DOC Class A Notice - Avis DOC, Classe A Regulatory Compliance StatementsFCC Class A Notice iv Sun Enterprise 220R Server Owner’s Guide October BSMI Class A Notice Declaration of Conformity SafetySupplementary Information USA-FCC Class A vi Sun Enterprise 220R Server Owner’s Guide October Safety Precautions Safety Agency Compliance StatementsSymbols Placement of a Sun Product Lithium Battery Power Cord ConnectionBattery Pack System Unit Cover Einhaltung sicherheitsbehördlicher Vorschriften SymboleCD-ROM Sicherheitsvorkehrungen Lithiumbatterie Anschluß des NetzkabelsBatterien Gehäuseabdeckung Conformité aux normes de sécurité SymbolesMesures de sécurité Modification du matériel Conformité SELV Positionnement d’un produit SunConnexion du cordon d’alimentation Batterie au lithium Bloc-batterie Normativas de seguridadCouvercle Conformité aux certifications Laser Modificaciones en el equipo Cumplimiento de la normativa SELVUbicación de un producto Sun Conexión del cable de alimentación eléctrica Aviso de cumplimiento con requisitos de láser GOST-R Certification Mark Nordic Lithium Battery CautionsBatería de litio Paquete de pilas Danmark SverigeSuomi xvi Sun Enterprise 220R Server Owner’s Guide October Safety Agency Compliance Statements Preface Contents2. System Setup Regulatory Compliance Statements Declaration of Conformity 4. Hardware Configuration 3. Administration and Network Setup Contents 7. Diagnostics and Troubleshooting 6. Using Storage Devices5. Replacing a Disk Drive xx Sun Enterprise 220R Server Owner’s Guide October B. System Specifications Index A. Connector Signal Descriptions xxii Sun Enterprise 220R Server Owner’s Guide October Preface xxiv Sun Enterprise 220R Server Owner’s Guide October How This Book Is Organized Solaris Handbook for Sun Peripherals Using UNIX CommandsTypographic and Command Entry Conventions Related Documentation Shell Prompts Sun Welcomes Your Comments Accessing Sun Documentation Onlinehttp//docs.sun.com docfeedback@sun.com xxviii Sun Enterprise 220R Server Owner’s Guide October About the Sun Enterprise 220R Server System Overview 2 Sun Enterprise 220R Server Owner’s Guide October Error-correcting code ECC on memory and all data paths Keyswitch Locating Front Panel FeaturesCD-ROM or optional Tape drive page 6 Sun Enterprise 220R Server Owner’s Guide October Locating Back Panel Featuresscrew hole Locked position Standby position About the Status and Control PanelLED indicators Power button Power On/Off position Keyswitch Keyswitch Settings This green LED lights continuously when the system power is on System LED IndicatorsPower-on/ Activity General fault 10 Sun Enterprise 220R Server Owner’s Guide October System Setup About the Parts Shipped to You Using the Setup and Rackmounting GuideTools Required for Setup and Rackmounting What to Do How to Install the Sun Enterprise 220R ServerBefore You Begin 3. Install the system into the rack 2. Install any optional drive shipped with your system Note -Each outlet must connect the system to a 15A circuit for North America and Japan, and to a 10A circuit for Europe. See your local electrical codes 7. Configure the network interface 6. Set up a console for your server8. Turn on power to your server 9. Install and boot the operating system software 11. Load additional software from the server media kit About Server Rackmounting Ninth Holes 99, 100, or Holes 27, 28, or Holes 15, 16, or Holes 3, 4, orThird First How to Remove the System From the Rack 2. Locate the flat spring catch shown in the following figure 3. Prepare to remove the system What Next5. Set the system on a workbench or other stable surface 7. Reattach, close, and lock the rack doors as appropriate How to Place the System Into the Rack 24 Sun Enterprise 220R Server Owner’s Guide October 1. Extend the cabinet’s anti-tip legs3. Lift the system 5. Insert the system glides into the inner slides of the rack glides 26 Sun Enterprise 220R Server Owner’s Guide October 10. Reattach, close, and lock the rack doors as appropriate About Communicating With the Server How to Attach an Alphanumeric ASCII Terminal 3. Set the terminal to receive 2. Connect the terminal’s power cable to an AC outlet 1. Install the graphics card into a vacant PCI slot How to Configure a Local Graphics Console 32 Sun Enterprise 220R Server Owner’s Guide October 3. Connect the monitor’s power cord to an appropriate AC power outlet 4. Connect the keyboard cable to the server’s keyboard/mouse port 2. Turn on power to the monitor or terminal How to Power On the System1. Turn on power to any peripherals and external storage devices Power-On/Off position Power button 3. Turn the front panel keyswitch to the Power-On/Off position4. Press the front panel Power button once 36 Sun Enterprise 220R Server Owner’s Guide October 5. Turn the keyswitch to the Locked positionLocked position How to Install the System Software Installing the Operating System From a Network Boot Server Solaris 2.6 Hardware 5/98 Installation RequirementInstalling the Operating System From CD-ROM Solaris 7 Software Installation 40 Sun Enterprise 220R Server Owner’s Guide October How to Select the Boot Device 1. At the ok prompt, type 2. To reboot the system from the new boot device, type 42 Sun Enterprise 220R Server Owner’s Guide October 1. Notify users that the system will be powered down How to Power Off the System3. Halt the operating system using the appropriate commands 2. Back up the system files and data, if necessary 44 Sun Enterprise 220R Server Owner’s Guide October Administration and Network Setup About Network Interface Options 3. Resume the installation of the system How to Configure the Standard Ethernet Interface1. Assign a host name to the machine 2. Determine the IP address for the interface 48 Sun Enterprise 220R Server Owner’s Guide October 1. Assign a network host name to the interface How to Add an Ethernet Interface 4. Create an appropriate /etc/hostname file for the new interface 3. Boot the operating system and log on to the system as superuserzardoz # cat /etc/hostname.hme0 zardoz # cat /etc/hostname.hme1 zardoz # cat /etc/hosts 7. Reboot the system typezardoz # reboot -- -r 1. Locate the RJ-45 connector for the appropriate Ethernet interface How to Attach a Twisted-Pair Ethernet TPE Cable What Next 1. Locate the appropriate MII Ethernet connector How to Attach an MII Ethernet Transceiver 4. Lock the AUI connector 56 Sun Enterprise 220R Server Owner’s Guide October At the ok prompt, type either of the two following commands How to Boot the System Using the Standard Ethernet Interface 58 Sun Enterprise 220R Server Owner’s Guide October ok boot net - install pci@1f,4000/pci@5/SUNW,hme@0,1 How to Boot the System Using a PCI-Based Ethernet Interface 60 Sun Enterprise 220R Server Owner’s Guide October 2. Change the default net device. At the ok prompt, type Hardware Configuration Error Correction and Parity Checking About Reliability, Availability, and Serviceability Features Hot-Pluggable Disk Drives Status LEDs Hot-Swappable Power Supplies Power Supply RedundancyFour Levels of Diagnostics 64 Sun Enterprise 220R Server Owner’s Guide October At the application level, you have access to SunVTS diagnostics. Like OBDiag, SunVTS provides a comprehensive test of the system, including its external interfaces. SunVTS also allows you to run tests remotely over a network connection. You can only use SunVTS if the operating system is running. For more information about SunVTS, see “About SunVTS Software” on page 132, “How to Use SunVTS Software” on page 135, and “How to Check Whether SunVTS Software Is Installed” on page About Memory Configuration Rules About CPU Modules About Peripheral Component Interconnect PCI Buses Clock About Disk Array Configurations and Concepts Disk Mirroring RAID Disk Concatenation Disk Striping With Parity RAID Disk Striping RAIDHot Spares 72 Sun Enterprise 220R Server Owner’s Guide October For More Information Hot Plug Disk drive LEDs About Internal Disk DrivesInternal disk bays devices/pci@1f,4000/scsi@3/sd@1,0 devices/pci@1f,4000/scsi@3/sd@0,0Disk Slot Number Logical Device Name About Power Supplies Page 78 Sun Enterprise 220R Server Owner’s Guide October About the Standard Ethernet Port About the Serial Ports 80 Sun Enterprise 220R Server Owner’s Guide October About the Parallel Port About the Main Logic Board Jumpers 82 Sun Enterprise 220R Server Owner’s Guide October About Serial Port Jumpers About Flash PROM Jumpers Bus Length About the External SCSI PortTarget Devices External SCSI Cabling and Termination The following figures provide a summary of the cabling guidelines Multi-initiator Support Chapter 4 Hardware Configuration 88 Sun Enterprise 220R Server Owner’s Guide October Replacing a Disk Drive How to Avoid Electrostatic Discharge 3. Use an antistatic wrist strap 2. Use an antistatic mat or similar surface 3. Unlock the front doors and swing them open How to Remove a Disk Drive1. Prepare the system for disk removal 6. Holding the disk drive by the handle, slide it out of the drive bay 8. Repeat the procedure for the other drive if necessary7. Place the disk drive on an antistatic mat 94 Sun Enterprise 220R Server Owner’s Guide October 4. Release the drive handle on the disk drive How to Install a Disk Drive1. Prepare the system to receive the new disk drive 5. Align the disk drive to its drive bay 11. Close and then lock the system front doors 10. Repeat the procedure for the other drive if necessary 2. Turn on power to the monitor or terminal, and open your console How to Initiate a Reconfiguration Boot ok boot -r 5. When the ok prompt is displayed, type the following command 100 Sun Enterprise 220R Server Owner’s Guide October Using Storage Devices 3. Gently push the tray back into the drive How to Insert a Compact Disc Into the Drive2. Place a CD into the drive tray, label side up Manually see “How to Eject a Compact Disc Manually” on page 2. From the console device, type How to Eject a Compact Disc With Software Commands1. Kill processes accessing the CD-ROM drive, if necessary You can also eject a compact disc by using one of these methods 106 Sun Enterprise 220R Server Owner’s Guide October How to Eject a Compact Disc Manually2. Press the Eject button on the front panel What Next 2. Unfold and straighten one end of a large wire paper clip How to Eject a Compact Disc in an Emergency1. Turn off the power to your system Manually see “How to Eject a Compact Disc Manually” on page Thermal Conditioning About the Tape Drive and Tape CartridgesHandling and Storing Tape Cartridges 3. Push gently on the cartridge until it is pulled into the drive How to Insert a Tape Cartridge2. Insert the cartridge into the drive, label side up 112 Sun Enterprise 220R Server Owner’s Guide October 2. Push the Eject button and remove the tape cartridge How to Remove a Tape Cartridge1. Check that there is no drive activity 114 Sun Enterprise 220R Server Owner’s Guide October How to Control the Tape Drive Insert a cleaning cartridge into the drive How to Clean the Tape Drive 1. Clean the disc with compressed air How to Clean a Compact Disc Diagnostics and Troubleshooting About Diagnostic Tools disk problem System yes boots ? yes Fault LED lit ?Chapter 7 Diagnostics and Troubleshooting Run POST no POST failure ? About Power-On Self-Test POST Diagnostics Setting Up a tip Connection How to Use POST Diagnostics a. Copy and paste the serial port B remote file 3. To use serial port Ab. Modify the serial port B system remote file as follows 4. In a shell window on the Sun system, type c. Type the following to kill the tip hardwire process 5. When POST is completed, disconnect the tip window as follows3. Verify the following serial port default settings as follows Verifying the Baud Rate Observing POST in Progress 1. When the ok prompt is displayed, type the following commandResults If a Sun Type-5 keyboard is attached to the system, POST status and error indications are also displayed via the four LEDs on the keyboard. When POST starts, all four keyboard LEDs blink on and off simultaneously. After that, the Caps Lock LED blinks slowly to indicate POST is running. If an error is detected, the pattern of the lit LEDs provides an error indication. See “Error Indications” on page 138 for more information About OpenBoot Diagnostics OBDiag OBDiag Menu OBDiag Configuration Variable Settings 3. Then type How to Use OpenBoot Diagnostics OBDiag2. Optional Select a diagnostic level 5. At the ok prompt, type 4. At the ok prompt, typeThe OBDiag menu is displayed The OBDiag Test menu is displayed 2. To set the diag-level variable, type the following How to Set the Diagnostic Level for POST and OBDiag About SunVTS Software SunVTS Quick Reference Card SunVTS User’s GuideSunVTS Test Reference Manual 1. Type the following How to Check Whether SunVTS Software Is Installed 3. Check whether SunVTS software is loaded on the server How to Use SunVTS Software2. Remotely log in to the server as superuser or root # cd /opt/SUNWvts/bin # ./sunvts -display localhostname0 4. To start the SunVTS software, type About Sun Enterprise SyMON Software Front Panel LEDs About Troubleshooting Your SystemError Indications Stop Keyboard LEDsD key Scroll Lock The following table provides error code definitions The following table provides a description of each LED Power Supply LEDs Internal disk drive LEDs Error MessagesDisk LEDs Solaris prtdiag Command Software Commands ok /usr/platform/sun4u/sbin/prtdiag prtdiag output OBP probe-scsi and probe-scsi-all Commands OBP show-devs CommandOBP printenv Command probe-scsi-all output probe-scsi outputok probe-scsi ok probe-scsi Symptom About Diagnosing Specific ProblemsNetwork Communications Failure Action 3. Reboot the system to make the changes effective Solution4. Reboot the system to make the changes effective Determining the Device Name of the Ethernet Interface 1. Run POST diagnostics Power-On Failure4. If the POST output contains an error message, then POST has failed Video Output Failure 1. At the system ok prompt, type Disk or CD-ROM Drive FailureReplace the drive indicated by the failure message 2. If a disk doesn’t respond, replace the unresponsive drive SCSI Controller Failure 152 Sun Enterprise 220R Server Owner’s Guide October Power Supply FailureDIMM Failure Page 154 Sun Enterprise 220R Server Owner’s Guide October Connector Signal Descriptions Keyboard/Mouse Connector Signals Reference for the Keyboard/Mouse ConnectorKeyboard/Mouse Connector Diagram Serial Port Signals Reference for the Serial Port A and B ConnectorsSerial Port A and B Connector Diagram 158 Sun Enterprise 220R Server Owner’s Guide October Not connected TPE Connector Signals Reference for the Twisted-Pair Ethernet TPE ConnectorTPE Connector Diagram UltraSCSI Connector Signals Reference for the UltraSCSI ConnectorUltraSCSI Connector Diagram 162 Sun Enterprise 220R Server Owner’s Guide October Dat13 164 Sun Enterprise 220R Server Owner’s Guide October Parallel Port Connector Diagram Reference for the Parallel Port Connector 166 Sun Enterprise 220R Server Owner’s Guide October Signal ground MII Connector Diagram Reference for the Media Independent Interface MII ConnectorMII Connector Signals 120 2140 Txclk 170 Sun Enterprise 220R Server Owner’s Guide October 36GndGround 37GndGround 38GndGround 39GndGround 40PwrPower “Physical Specifications” on page “Electrical Specifications” on page System Specifications“System Specifications” on page A P P E N D I X B Electrical Specifications Reference for System SpecificationsPhysical Specifications The environmental requirements for the system are as follows Environmental Specifications 174 Sun Enterprise 220R Server Owner’s Guide October Index Page Page See also Ethernet ATM diag-switch?, 121, 129 operating system softwarePage watch-net-all command