Chaparral VFS113 Address and Device Mapping

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Address and Device Mapping

Devices attached to the router are discovered during power on. The router defaults to AUTO mapping mode, which automatically maps the SCSI devices at each power on. The router maps devices sequentially as it scans the channels and discovers the devices (devices are discovered by channel, lowest SCSI ID and LUN first). Devices are mapped to FC LUNs, starting from LUN 0 to LUN 63 (64 LUNs are supported, including an optional router LUN).

You can select the FIXED mapping mode to lock the current device mapping so that it doesn’t change during subsequent power ons, even if devices are added, moved, or removed. FIXED is recommended for environments where device configuration may change and a fixed mapping from the application to the target devices is required. Devices added after selecting FIXED will be automatically mapped to an available FC LUN. See Changing the Mapping Mode (AUTO or FIXED) on page 3-20.

Figure A-1 on page A-2is an example of how the router will map SCSI devices (SCSI channel:target:LUN) to FC LUNs.

A-1

Contents

Chaparral VFS113 User’s Guide Page Copyright Trademarks Changes Technical Support Federal Communications Commission Radio Frequency Interference Statement Canadian Compliance Statement EMC Immunity Safety Laser Safety Page Contents Troubleshooting Address and Device Mapping LAN Configuration Reference Documents Glossary Index Page Introduction About This Guide Conventions Chaparral VFS113 Router Benefits and Features About Serverless Backup Specifications Indicators Switches Environmental Caution: Page Installing the Router Unpacking the Router Installing the Router Installing on a Desktop Installing in a Rack Installation Configuration Examples Page Page Connecting the Router Connecting to the SCSI Channels Connecting to the Fibre Channel Port Connecting to the RS-232 Port Connecting to the Ethernet Port Powering Up All Devices Understanding the LED Status Lights Router Default Settings Configuring the Router Accessing the Router Administrator Software Accessing the Router Administrator Using the RS-232Serial Port Page Accessing the Router Administrator Using the Ethernet Port Using the Ethernet Port for the First Time Accessing the Router Software Using the Ethernet Port Accessing the Network Management System Navigating the Router Administrator Software Changing the Screen Display Changing Router Configuration Selecting the Topology Changing the Router’s Loop ID To change the Loop ID: Changing the Router’s FC LUN NONE Changing the SCSI ID Assigned to Each Router Channel Disabling the Termination on an HVD Router Setting the Date and Time Changing the Scan Delay Enabling and Disabling the Alarm Alarm threshold What to do when the alarm sounds Restoring the Default Settings Rebooting the Router Changing and Displaying Device Information Changing the Mapping Mode (AUTO or FIXED) Changing Device Addresses (FC LUNs) To change the device FC LUNs: Display Address Map Displaying the Devices Connected to the Router Displaying the FC-to-SCSIAddress Map Displaying Router Information Displaying the Event Log To display one event at a time: Event Log Menu 2Select View Event Log and press Enter To display a full page of events: Ctrl-e Displaying Hardware and Configuration Information To display hardware information only: Utilities Menu To display hardware and configuration information: Displaying the Router’s FC LUN Upgrading Firmware Upgrading the Router’s Firmware Transfer | Send File Open Send Upgrading the Ethernet Card’s Firmware Page Troubleshooting Chaparral Technical Support Problems During Bootup Diagnostic Failure Solutions Restoring the Default Configuration Through the Flash Utility Terminal Emulator and COM Port Problems Device SCSI Channel Problems Router is Not Responding Using the Loader Diagnostics Menu Using the Loader Utility Menu Event Logs Event Log File Capture Voltage and Temperature Errors and Warnings Setting Up Debug Logging Address and Device Mapping Page Loop ID to AL_PA Mapping Page LAN Configuration Configuring the Router for TCP/IP Using Address Resolution Protocol Dynamic Host Configuration Protocol Configuration Configuring the Additional LAN Settings System Configuration Screen TCP/IP Configuration Screen SNMP Configuration Screen Restarting the LAN Board System Information screen Returning to the Router Administrator Software Page Reference Documents Standards Books Glossary Fibre— Fibre channel (FC)— Gigabit interface converter (GBIC)— Low voltage differential (LVD)— Management information base (MIB)— Mapping Simple Network Management Protocol (SNMP) Speed— Storage area network (SAN)— Target— Index