Missing terminator at the end of a Scsi bus | ADIC Scalar 1000

SNC 5100

Missing terminator at the end of a SCSI bus

Check that an external terminator is attached or that the end device has termination enabled.

Excessive termination

Check that all devices other than the end devices have termination disabled.

Multiple devices at the same ID

If two or more devices are configured at the same SCSI ID, only one of those devices will be seen by the SNC 5100, and data transfers to that device will be unreliable. Check that only one device is set to each ID.

Target device set to initiator’s ID

If a target device is set to the same ID as the SNC 5100 (ID 7), the bus will be unstable and targets will not be identified. Check that no target devices are set to ID 7, or if one must be set to 7, change the SNC 5100 Initiator ID.

Bent pins in a SCSI connector

The pins in the SCSI connectors are somewhat fragile. Inspect each connector to find pins that were bent when the connector was attached. Replace any cables with bent pins.

Improper device type

A DE device on an SE bus or an SE device on a DE bus will cause the bus to be unusable.

Improper terminator type

A DE terminator on an SE bus or an SE terminator on a DE bus will cause the bus to be unusable.

28 Other Installation Issues

6-00020-02

Image 36

ADIC Scalar 1000 manual Missing terminator at the end of a Scsi bus, Excessive termination, Multiple devices at the same ID

Contents

User Guide Copyright Notice Copyright Notice Europe Introduction Install the SNC Maintenance Action Plans Removal and Replacement Procedures Connecting to the Service Port Service Port Command ReferenceDiagnostic Command Reference Post Error Codes Warranty and EulaStartup Message Reference Glossary Safety Notices Safety InspectionWelcome Remove AC Power Safety Label CheckSafety Label External Machine Check Fusing Requirements Laser SafetyLithium Battery Environmental Notices and Statements General Restrictions Usage RestrictionsRegulatory Notices Electronic Emission Statements Industry Canada Compliance Statement European Community Compliance Statement SNC CE Notice Documentation Configuration Overview Overview Configuration Support Address MappingInterface Protocol Awareness Hardware Product Description and Features Fibre Channel InterfacesFibre Channel Connections Gbic speed Cable Type Distance Ultra2 Scsi I/O Interfaces Scsi Command Support Service PortEthernet LED Indicators LEDs Supported Platforms Scsi Operating Specifications Supported DevicesOperating Environment Power Consumption Power Requirements SNC Operating Specifications 00020-02 Pre-installation Procedure Pre-Installation ChecklistStep Actions Comments and References Installation Procedure Installation Checklist Installation Checklist See the setHost port,OS Host Utility Software Host Utility Software Post-Installation Other Installation IssuesAttaching Scsi Devices Maximum Number of LUNs Transfer Rates Ultra, Fast, and Asynchronous Wide and Narrow Scsi Buses Table of Scsi Terminology and Limitations Scsi Trade Association TerminologyMax Bus Endorsed Terminology Max. Bus Speed Lengths MB/Sec Devices Problems on the Scsi Bus Scsi Bus Termination Bent pins in a Scsi connector Missing terminator at the end of a Scsi busExcessive termination Multiple devices at the same ID Host Bus Adapter Setup FusesInadequate cables Mixed cable types Installing the SAN Explorer Installing the Host Registration ServicePower-Up and Boot Sequence Guidelines SNC SNC Other Installation Issues 00020-02 Maintenance Action Plans Troubleshooting Table Component Subsystem Go To Event Codes and Actions Check Event LogReview all visual observations and Event Codes against on Event Viewing Default Action2 Event Codes and ActionsDescription Code Level1 Threshold Event Viewing Default Action Code Level Threshold Description Code Level1 Threshold LIP Event Codes and Actions Health Check Event Descriptions Heartbeat Event Descriptions Action Reference Table Action Reference TableAction Number Event Code or Obvious Symptom Start MAPEvent Viewing Levels Event Viewing Levels Visually Inspect LEDs Check for Problems on Attached Devices Check SNC 5100 Product VersionsCheck Host Versions Adic Management Console version Firmware version Hardware version Stop all I/O Remove the Ethernet cable if installed Quick Component CheckPerform Health Check Database Full MAP Check the Host Event Log Device Access MAP Check Fibre Channel Port Status Check Scsi Channel Devices Check Channel Zoning Settings Scsi Channel MAPGet Scsi Information for the SNC Check Attached Scsi Devices from the Service Port Compare Listed versus Physical Devices Compare Listed versus Supported Devices Check Scsi Bus Termination Check for Multiple Scsi IDs Type Improper Device Type Examine Scsi Cables Examine Scsi Connectors Scsi Health Check Scsi Loop Back Test Testing Scsi Cables Isolating Scsi devices Restore Scsi Setup Fibre Channel MAP Verify Fibre Channel Connections Test Gbic Examine Cables Fibre Channel Loop Back Test Testing Fibre Channel Optical Cable Replace Fibre Channel Cable Replace Fibre Channel Device Temperature MAP MAP for the SNCObserve Operational LED Behavior Notification of Problems in Temperature Subsystem Temperature Warnings or Alarms Received Power MAP Fan Speed is in Warning or Alarm Range Ethernet MAP Ethernet Port on Faceplate SNC Example SN60023 ifShow SNC Display of failed Ping test From the service terminal, enter the diagBoot command From the service port, enter the elTest commandStep Verify that the diagmode prompt is displayed Service Port MAP If both addresses are the same, go to step Check Connection with Boot Messages Check the RS-232 Cable Virtual Private SAN Scalar Firewall Manager Settings MAP Check Scalar Firewall Manager Access SettingsPerform these steps if SFM devices are unavailable Verify Host Access to Devices SNC Page Removal and Replacement Procedures Handling Electrostatic Discharge-Sensitive Parts Removing and Replacing the Gbic Before Removing or Replacing the UnitRemoving the Gbic Replacing the Gbic Removing and Replacing the Unit Removing the SNC Final Diagnostic Tests Replacing the SNCFinal Test Preparation Fibre Channel Tests Test Fibre Channel Port Ethernet Test Test Scsi Port 1Test Scsi Port 3 Network Setup for the SNC For more information, see Network Setup for the SNC , Pre-Installation Checklist, on Enter the hostNameSet command to set the Host nameFor more information, see the hostNameSet command on Ethernet Port Foster ethAddrSet 10.0.0.2 Checklist Updating the SNC Post-Repair Checklist Post-Repair Checklist Start the Adic FcShowDevs SNC Post-Repair Checklist 00020-02 Service Port Connections DB-9 RS-232 Connector Pin Assignments Connecting the Service Terminal Hardware RequiredLists the null modem cable connections Null Modem Cable Connections Initial Setup of HyperTerminal Verifying the Connection Updating Firmware and Configurations Updating SNC 5100 Firmware Saving a Configuration File Loading a Configuration File Zmodem Status Code Table Zmodem Status CodesStatus Description Code Setting the Time and Date Setting the Real Time Clock For more information, see the tzSet timezone command on Adding a Host System Running Timeserver For more information, see the setTimeHost command on Disabling the Timeserver Host For more information, see the rtcSetCurrent command on Synchronizing the Real Time Clock with a Timeserver Commands Commands Listed Alphabetically byFunctionCommand or Command Description Group Command and Control Managing the SNC Command or Command Description Group DiagnosticsEnvironmental Sensors Ethernet Network Event Logging Fibre Channel Flash File System Health CheckHelp Product Data Scalar Firewall Manager Scsi Startup ArptabShow ClearReservationdevIdParameter Value CleHelp CleShow LUNCleShowAll CsClearLogFile DiagBoot DiagHelp command displays a list of the diagnostic commandsDateSetFromRTC DiagHelp DisableCC option number Option EnableCC EnvMonShowChannel Name Description EnvMonRangeShow EthAddrGet EthAddrSet FcConnTypeGet portParameter Value Meaning FcConnTypeSet port,connection FcFibreSpeedGet port FcFibreSpeedSet port,speed FcGbicShow port GBIC. Specifying the port number is optional Finisar Corp Value Port Mode FcPortModeGet port FcPortModeSet port,mode FcRestart port FcShow level Level Meaning Ctlr Id FcShowDevs Ext. Fifo FcTxDisable port FcTxEnable portFcShowNames GateAddrGet GateAddrSet Help command displays a list of the shell commands TerminalHelp Commands 133 00020-02 HlthChkHelp HlthChkIntervalGetHlthChkIntervalSet HlthChkLevelGet HlthChkLevelSetHlthChkNow Host add,hostname,ipAddress Following is an example of host file contents WhereHost delete,hostname Host list HostNameSet HostShowHostTypeShow IcmpstatShow IfShow InetstatShow InitializeBox IpstatShow LicenseShowLoggerDump number File are displayed starting with the most recent events SN600393LoggerDumpCurrent level Ls or ll MacShow Ethernet interface MapCompressDatabase MapHelp MapRebuildDatabase MapShowDatabase MapShowDevs SNA MapWinnowDatabase MapWinnowDatabaseLun dev IDMbufShow Administrator NetHelp NormalBoot Rdate timeserver Reboot ResetReserveShow level ReserveShow Viewing Levels RestartScsi channel Ridtag valueOn original equipment, the RID tag will be blank Route Route add,destination,gateway Route list command lists the existing routes Route delete,destination,gatewayRoute list String RtcSetCurrent ScsiAltIdGet channel ScsiAltIdSet channel,id ScsiHostChanGet channel ScsiHostChanSet channel,mode ScsiHostIdGet channel ScsiHostIdSet channel,idScsiRescan channel ScsiResetDisableGet channel ScsiResetDisableSet channel,mode ScsiShow LUN ScsiTermGet channel ScsiTermSet channel,terminationSetFcFrameSize channel,size SetFcHardId channel,id SetHost port,OS SetNettime value Value Meaning SfmAccessApply SetSnaCCLun newLUNSetTimeHost SfmAccessClear disable code SfmAccessSet hostindex,Starting LUN,Ending LUN,AccessAccess Value SfmActiveSet SfmFeatureEnable license key string Following command example shows SFM information for host IdIf SFM is already active, the following is displayed SfmConnectionSet hostindex,host connection string SfmInactiveSet If SFM is already inactive, the following is displayedSfmNameSet hostindex,name string SfmShow hostIndex Hostindex Meaning SfmSparseAccessSethostindex,LUN string,Access SfmTypeSet hostIndex,OS type stringShellLock ShowBox ShowVersions SncFeatureEnable licensekeystring SnmpCommunitiesShow SnmpHelp command displays a list of the snmp commands SnmpHelp SnmpReadCommunityAdd string ,view SnmpReadCommunityRemove stringSnmpTrapCommunitySet string,view SnmpWriteCommunityAdd string,view SysConfigShow SysNodeNameModeSet ModeSnmpWriteCommunityRemove string Mode Definition SysNodeNameModeShowSysVpdShow or sysVpdShowAll OEM Adic Data for the Fibre Channel Gbic IBM Gbic NV RAM CPU Sz filename Targets TcpstatShow TrapDestAdd ipAddress TrapDestRemove ipAddress TrapDestShow TzSet timezoneUdpstatShow UserAdd username,password UserDelete username,passwordUptime User UserHelp command displays a list of the user commands UserListUserHelp Version SNC Boot Modes Entering Diagnostic Mode Special Procedures Restoring Normal ModeHealth Check Manual Health Check Retrieving the Code 43 Dump File Event Log Dump SNC Boot Mode Commands Diagnostic Commands ElTest FcSlotTest ScsiChannelTest x,y Unsuccessful Fibre Test Unsuccessful Scsi Test cable not plugged ShowBox also lists the cabling requirements for each slot SupportDump EnvMonShow dmva reserveShow Post Boot Behavior ROM Init Simple Access Test Initial Post Bitwalk Test Memory SizePattern Test Identify and Execute bootrom Secondary PostAddress Test Post Service Menu Start of Bootrom Cold boot from Alternate bootrom Cold Boot from primary bootromButton may be depressed any time during the memory tests After completing the memory tests Post will display Error Displays Receive new boot image from serial portFull Version information SNC Post Service Menu 00020-02 Bootrom Messages See the sample code below LIC Initialization Messages Final Startup Messages SNC Bootrom Messages 00020-02 Dynamic Random Access Memory Maintenance Action PlanBasic Input/Output System Differential Ended Power-On Self test Replacement IdentificationSynchronous Dynamic Random Access Memory SAN Replication Services Warranty and Eula Adic Limited Product Warranty Adic Limited Product Warranty 00020-02 Adic End User License Agreement Adic End User License Agreement 00020-02 Adic End User License Agreement 215 00020-02 SNC Bootrom 110, 171 Index Post MAP SNC 220 00020-02