Table of Scsi Terminology and Limitations | ADIC Scalar 1000

SNC 5100

The SCSI protocol also defines a priority-based arbitration method, based on the target ID of the device attaching to the bus. The SCSI ID priority order is, from highest to lowest, 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8.

Table of SCSI Terminology and Limitations

The following table (look for updates at http://www.scsita.org/) defines the number of devices supported, based on the negotiated transfer type. When reviewing the limitations of a bus, the capabilities of the fastest devices must be considered. The bus length indicates total SCSI bus length, including any internal device cables, rather than the length between any two devices.

Table 5: SCSI Trade Association Terminology

				Max.
				Bus
	Endorsed Terminology	Max. Bus Speed,	Bus	Lengths	Max.
	for SCSI Parallel	Max. Bus Speed,	Width,	,	Max.
	for SCSI Parallel	MB/Sec	Width,	,	Devices
	Interface Technology	MB/Sec	Bits	in	Devices
	Interface Technology		Bits	in
				Meters
				(1)

				LVD

	SCSI 1 (2)	5	8	25	8

	Fast SCSI (2)	10	8	25	8

	Fast Wide SCSI (2)	20	16	25	16

	Ultra SCSI (2)	20	8	25	8

	Ultra SCSI (2)	20	8	-	4

	Wide Ultra SCSI	40	16	25	16

	Wide Ultra SCSI	40	16	-	8

	Wide Ultra SCSI	40	16	-	4

	Ultra2 SCSI (2,3)	40	8	25	8

	Wide Ultra2 SCSI (3)	80	16	25	16

	Ultra3 SCSI or Ultra 160 (5)	160	16	(4)	16

	Ultra320	320	16	(4)	16

26 Other Installation Issues

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ADIC Scalar 1000, SNC 5100 Table of Scsi Terminology and Limitations, Scsi Trade Association Terminology, MB/Sec Devices

Contents

User Guide Copyright Notice Copyright Notice Europe Introduction Install the SNC Maintenance Action Plans Removal and Replacement Procedures Service Port Command Reference Connecting to the Service PortDiagnostic Command Reference Startup Message Reference Post Error CodesWarranty and Eula Glossary Safety Inspection Safety NoticesWelcome Safety Label Remove AC PowerSafety Label Check External Machine Check Lithium Battery Fusing RequirementsLaser Safety Environmental Notices and Statements Regulatory Notices General RestrictionsUsage Restrictions Electronic Emission Statements Industry Canada Compliance Statement European Community Compliance Statement SNC CE Notice Documentation Configuration Overview Overview Address Mapping Configuration SupportInterface Protocol Awareness Fibre Channel Connections Hardware Product Description and FeaturesFibre Channel Interfaces Gbic speed Cable Type Distance Ultra2 Scsi I/O Interfaces Service Port Scsi Command SupportEthernet LED Indicators LEDs Supported Platforms Scsi Supported Devices Operating SpecificationsOperating Environment Power Consumption Power Requirements SNC Operating Specifications 00020-02 Pre-Installation Checklist Pre-installation ProcedureStep Actions Comments and References Installation Procedure Installation Checklist Installation Checklist See the setHost port,OS Host Utility Software Host Utility Software Attaching Scsi Devices Post-InstallationOther Installation Issues Maximum Number of LUNs Transfer Rates Ultra, Fast, and Asynchronous Wide and Narrow Scsi Buses Max Bus Endorsed Terminology Max. Bus Speed Lengths Table of Scsi Terminology and LimitationsScsi Trade Association Terminology MB/Sec Devices Problems on the Scsi Bus Scsi Bus Termination Excessive termination Bent pins in a Scsi connectorMissing terminator at the end of a Scsi bus Multiple devices at the same ID Inadequate cables Host Bus Adapter SetupFuses Mixed cable types Installing the Host Registration Service Installing the SAN ExplorerPower-Up and Boot Sequence Guidelines SNC SNC Other Installation Issues 00020-02 Maintenance Action Plans Troubleshooting Table Component Subsystem Go To Check Event Log Event Codes and ActionsReview all visual observations and Event Codes against on Description Event Viewing Default Action2Event Codes and Actions 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 Viewing Levels Event Code or Obvious SymptomStart MAP Event Viewing Levels Visually Inspect LEDs Check Host Versions Check for Problems on Attached DevicesCheck SNC 5100 Product Versions Adic Management Console version Firmware version Hardware version Quick Component Check Stop all I/O Remove the Ethernet cable if installedPerform Health Check Database Full MAP Check the Host Event Log Device Access MAP Check Fibre Channel Port Status Check Scsi Channel Devices Scsi Channel MAP Check Channel Zoning SettingsGet 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 MAP for the SNC Temperature MAPObserve 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 Step From the service terminal, enter the diagBoot commandFrom the service port, enter the elTest command 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 Check Scalar Firewall Manager Access Settings Virtual Private SAN Scalar Firewall Manager Settings MAPPerform these steps if SFM devices are unavailable Verify Host Access to Devices SNC Page Removal and Replacement Procedures Handling Electrostatic Discharge-Sensitive Parts Removing the Gbic Removing and Replacing the GbicBefore Removing or Replacing the Unit Replacing the Gbic Removing and Replacing the Unit Removing the SNC Replacing the SNC Final Diagnostic TestsFinal Test Preparation Fibre Channel Tests Test Fibre Channel Port Test Scsi Port 1 Ethernet TestTest Scsi Port 3 Network Setup for the SNC For more information, see Network Setup for the SNC For more information, see the hostNameSet command on , Pre-Installation Checklist, onEnter the hostNameSet command to set the Host name 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 Lists the null modem cable connections Connecting the Service TerminalHardware Required 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 Codes Zmodem Status Code TableStatus 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 Command or Command Description Group Command and Control CommandsCommands Listed Alphabetically byFunction Managing the SNC Environmental Sensors Command or Command Description GroupDiagnostics Ethernet Network Event Logging Fibre Channel Health Check Flash File SystemHelp Product Data Scalar Firewall Manager Scsi Startup ClearReservationdevId ArptabShowParameter Value CleShowAll CleHelpCleShow LUN CsClearLogFile DateSetFromRTC DiagBootDiagHelp command displays a list of the diagnostic commands DiagHelp DisableCC option number Option EnvMonShow EnableCCChannel Name Description EnvMonRangeShow EthAddrGet FcConnTypeGet port EthAddrSetParameter 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 FcTxEnable port FcTxDisable portFcShowNames GateAddrGet GateAddrSet Terminal Help command displays a list of the shell commandsHelp Commands 133 00020-02 HlthChkIntervalGet HlthChkHelpHlthChkIntervalSet HlthChkNow HlthChkLevelGetHlthChkLevelSet Host add,hostname,ipAddress Where Following is an example of host file contentsHost delete,hostname Host list HostTypeShow HostNameSetHostShow IcmpstatShow IfShow InetstatShow InitializeBox LicenseShow IpstatShowLoggerDump number SN600393 File are displayed starting with the most recent eventsLoggerDumpCurrent level Ls or ll MacShow Ethernet interface MapCompressDatabase MapHelp MapRebuildDatabase MapShowDatabase MapShowDevs SNA MapWinnowDatabaseLun dev ID MapWinnowDatabaseMbufShow Administrator NetHelp NormalBoot Rdate timeserver ReserveShow level RebootReset ReserveShow Viewing Levels Ridtag value RestartScsi channelOn original equipment, the RID tag will be blank Route Route add,destination,gateway Route delete,destination,gateway Route list command lists the existing routesRoute list String RtcSetCurrent ScsiAltIdGet channel ScsiAltIdSet channel,id ScsiHostChanGet channel ScsiHostChanSet channel,mode ScsiHostIdSet channel,id ScsiHostIdGet channelScsiRescan channel ScsiResetDisableGet channel ScsiResetDisableSet channel,mode ScsiShow LUN ScsiTermSet channel,termination ScsiTermGet channelSetFcFrameSize channel,size SetFcHardId channel,id SetHost port,OS SetNettime value Value Meaning SetSnaCCLun newLUN SfmAccessApplySetTimeHost Access Value SfmAccessClear disable codeSfmAccessSet hostindex,Starting LUN,Ending LUN,Access SfmActiveSet If SFM is already active, the following is displayed SfmFeatureEnable license key stringFollowing command example shows SFM information for host Id SfmConnectionSet hostindex,host connection string If SFM is already inactive, the following is displayed SfmInactiveSetSfmNameSet hostindex,name string SfmShow hostIndex Hostindex Meaning SfmTypeSet hostIndex,OS type string SfmSparseAccessSethostindex,LUN string,AccessShellLock ShowBox ShowVersions SncFeatureEnable licensekeystring SnmpCommunitiesShow SnmpHelp command displays a list of the snmp commands SnmpHelp SnmpTrapCommunitySet string,view SnmpReadCommunityAdd string ,viewSnmpReadCommunityRemove string SnmpWriteCommunityAdd string,view SysNodeNameModeSet Mode SysConfigShowSnmpWriteCommunityRemove string SysNodeNameModeShow Mode DefinitionSysVpdShow or sysVpdShowAll OEM Adic Data for the Fibre Channel Gbic IBM Gbic NV RAM CPU Sz filename Targets TcpstatShow TrapDestAdd ipAddress TrapDestRemove ipAddress TzSet timezone TrapDestShowUdpstatShow Uptime UserAdd username,passwordUserDelete username,password User UserHelp UserHelp command displays a list of the user commandsUserList Version SNC Boot Modes Entering Diagnostic Mode Health Check Special ProceduresRestoring Normal Mode 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 Memory Size Bitwalk TestPattern Test Secondary Post Identify and Execute bootromAddress Test Post Service Menu Start of Bootrom Button may be depressed any time during the memory tests Cold boot from Alternate bootromCold Boot from primary bootrom After completing the memory tests Post will display Receive new boot image from serial port Error DisplaysFull 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 Basic Input/Output System Dynamic Random Access MemoryMaintenance Action Plan Differential Ended Synchronous Dynamic Random Access Memory Power-On Self testReplacement Identification 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