Chaparral FS2620R manual Glossary

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Glossary

Loop address—Loop address is an FC term that indicates the unique ID of a node in FC loop topology. A loop address is sometimes referred to as a Loop ID.

Low voltage differential (LVD)—LVD is a method of powering SCSI cables that will be formalized in the SCSI-3 specifications. LVD uses less power than the current differential drive (HVD), is less expensive, and allows for higher speeds such as those of Ultra2 SCSI. LVD requires 3.3 volts (versus 5 volts for HVD).

Management information base (MIB)—A MIB is a database of managed objects accessed by network management protocols. An SNMP MIB is a set of parameters that an SNMP management station can query or set in the SNMP agent of a network device (for example, a router).

Mapping table—A mapping table is a table indexed by sequential LUN values. The values indicate select bus:target:LUN devices. Mapping tables are used by some routers to perform FC-to-SCSI operations by default.

Other controller—In Active-Active mode, the opposite controller from the one currently being used (that is, not the local controller) is referred to as the other controller.

Ownership—In an active-active configuration, a single controller has ownership of the following resources: arrays and dedicated spares. When a controller fails, the other controller assumes temporary ownership of its resources.

Point to Point—A point-to-point connection is a communication link between two end systems. Chaparral uses this term to refer to a link between the controller or router (N- port) and the F-port on a switch. The point-to-point topology is one of three FC topologies, in which two ports are directly connected by a link; there are no fabric, loop, or switching elements present.

Router—A router is a device that enables connectivity between SCSI devices and FC networks. It routes each data command to the appropriate SCSI channel based on the address it is intended for.

SCSI adapter A SCSI adapter is a 16-bit fast/wide or 8-bit narrow, single-ended or differential physical connection between a router and SCSI devices. Each SCSI adapter supports up to 16 (fast/wide) or 8 (narrow) SCSI devices, including itself.

SCSI addressing—Each device supported by a SCSI adapter has its own unique SCSI address, which dictates the device’s priority when arbitrating for access to the SCSI bus. A SCSI address of 7 has the highest priority. For a fast/wide SCSI adapter that supports up to 16 devices, the next highest priority address is 6, then 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, and 8. A narrow SCSI adapter supports up to eight devices, including itself. The SCSI address 7 has the highest priority, followed by 6, 5, 4, 3, 2, 1, and 0.

SCSI bus—A SCSI bus provides a means of transferring data between SCSI devices. A SCSI bus is either an 8- or 16-bit bus that supports up to 8 or 16 devices, including itself. The bus can consist of any mix of initiators and targets, with the requirement that at least one initiator and one target must be present.

SCSI device—A SCSI device is a single unit on a SCSI bus that originates or services SCSI commands. A SCSI device is identified by a unique SCSI address. SCSI devices can act as initiators or targets.

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Contents User’s Guide Page Copyright Canadian Compliance Statement Safety Page Contents Address and Device Mapping Reference Documents FS2620R Rack User’s Guide Viii About this Guide IntroductionConventions Chaparral FS2620R Router Benefits and FeaturesBold Chaparral FS2620R Router Benefits and Features About Serverless Backup and Restore Physical SpecificationsEnvironmental To unpack the router Unpacking the RouterTo install the FS2620R on a desktop Installing the RouterInstalling on a Desktop Installing in a RackTo install the router in a rack Connecting the RouterRear panel components Connecting to the Scsi ChannelsTo connect devices to the Scsi channels Connecting to the Fibre Channel PortTo connect to the Fibre Channel port To connect to the RS-232 port Connecting to the RS-232 PortTo connect to the Ethernet port Powering Up All DevicesConnecting to the Ethernet Port To power up Scsi devicesTo make the host FC connection Understanding the LED Status LightsDescription Color Function Label Setting Default For more information, see Router Default SettingsSimple loop configuration example Installation Configuration ExamplesMultiple servers on a SAN FC-AL Multiple SANs with fabric FC-SW Combination loop and switch configuration Accessing the Router Administrator Software Configuring the RouterFS2620R Rack Model User’s Guide Accessing the Router Administrator Using the Ethernet Port FS2620R Rack Model User’s Guide Configuring the Router’s Network Settings System Configuration Screen Snmp Configuration Screen Restarting the Router To access the network management system Navigating the Router Administrator SoftwareMenu Tree illustrates the main menu options and sub-options Changing the Screen Display Changing Router ConfigurationConfiguring the FC Host Channels To configure an FC host channel Select Enabled or Disabled and press Enter Changing Router Configuration System confirms that you want to make the changes To change the Scsi ID assigned to a Scsi channel Changing the Scsi ID Assigned to Each Router ChannelFS2620R Rack Model User’s Guide To set the router’s date Setting the Date and TimeTo set the router’s time Enabling and Disabling the Alarm Changing the Scan DelayTo change the scan delay Alarm threshold What to do when the alarm sounds To enable or disable the alarmSelect Restore Defaults and press Enter Rebooting the RouterRestoring the Default Settings To restore the default settingsTo change the mapping mode Changing the Mapping Mode Auto or FixedChanging and Displaying Device Information Changing Device Addresses FC LUNs Select Mapping Mode press EnterTo change the device FC LUNs See Changing the Mapping Mode Auto or Fixed onDisplaying the Devices Connected to the Router Changing Addressing MethodSelect Addressing Method and press Enter To display the devices connected to the router Displaying the FC-to-SCSI Address MapTo display the address map Displaying the Event Log Displaying Router InformationSelect View Event Log and press Enter To display one event at a timeTo display a full page of events Capturing the Event Log FileTo capture the event log file Displaying Hardware and Configuration InformationGbic To display hardware information only To display hardware and configuration information To display the router’s LUN Displaying the Router’s FC LUNSelect Display Address Map and press Enter Upgrading Firmware To upgrade the router’s firmwareUpgrading the Controller’s Firmware Upgrading LAN Firmware To upgrade the Ethernet card’s firmwareUpgrading Firmware FS2620R Rack Model User’s Guide Chaparral Technical Support Problems During BootupFS2620R Rack Model User’s Guide Select 2. Clear Configuration and press Enter To restore the default configurationSolution Terminal Emulator and COM Port ProblemsRouter is Not Responding Device Scsi Channel ProblemsTo set up debug logging Setting Up Debug LoggingUsing the Loader Utility Menu Using the Loader Diagnostics MenuVoltage and Temperature Errors and Warnings FS2620R Rack Model User’s Guide Address and Device Mapping Device Loop ID to Alpa MappingALP 114 115 116 117 118 119 120 121 122 100 123 101 124 102 125 Using Address Resolution Protocol Configuring the Router for TCP/IPTo use ARP to resolve addresses in Windows Dynamic Host Configuration Protocol ConfigurationArp -s IP address 005013fx-xx-xx To discover which IP address was assigned to the router Simple Network Management Protocol ConfigurationFS2620R Rack Model User’s Guide Standards Reference DocumentsSBP BooksGlossary G6322/G7324 User’s Guide Glossary G6322/G7324 User’s Guide Index Dhcp Page FS2620R Rack Model User’s Guide TCP/IP FS2620R Rack Model User’s Guide