ATTO Technology VT-Class manual Connecting a Fibre Channel Array, Autoconfiguration

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2 Gb HIC uses
2 SFPs to connect up
to 2 FC cables

3.2.1 Connecting a Fibre Channel Array

The Diamond-VT supports up to two Fibre Channel Host Interface Cards (HIC). Physical connections and CLI commands contribute to the Fibre Channel topology.

The Diamond-VT may have two Fibre Channel Host Interface Cards (HIC). Each HIC is connected by a Fibre Channel cable via an SFP (small form factor pluggable) module into a

point-to-point or loop Fibre Channel topology.

1Install the SFP according to the manufacturer’s instructions.

2Insert the SFP into the Fibre Channel Host Interface Card in the back of the Diamond-VT.

3Insert the correct cable.

The cable you use depends upon your application, the environment and the distance required for your storage area network.

To comply with FCC and CE EMI for the 2- gigabit Host Interface Card, use fiber optic cables.

Exhibit 3.2.1-1 Fibre Channel cable options

Cable length

Cable type

Cable

 

 

size

 

 

 

<10 meters

Unequalized

 

 

copper

 

 

 

 

>10 <30 meters

Equalized copper

 

 

 

 

Up to 175

multi mode fiber

62.5

meters

optic

micron

 

 

 

Up to 500

multi mode fiber

50 micron

meters

optic

 

 

 

 

Up to 10

single mode fiber

9 micron

kilometers

optic

 

 

 

 

Each HIC has two ports and an on-board hub. Each port has an SFP module to connect to Fibre Channel. Each HIC is independent of the other, so that one may be connected into a point-to-point topology and the other into a loop. However, if

one port in a HIC is connected into a point-to- point topology, the other port cannot be used.

One of the advantages of using loop topology for Fibre Channel connections is that it allows Diamond-VT units to be daisy-chained together. See Exhibit 3.2.1-2.

Autoconfiguration

The Diamond-VT automatically determines if the Array HICs are in loop or point-to-point topologies.

If you wish to see how the unit has been set up, go to the CLI commands and type Info or go to the Status page of the ExpressNAV interface. The return displays the data rate and connection mode for each HIC (FC 0 and FC 1).

Manual configuration

You may manually configure the Diamond-VT using CLI commands (see CLI: Interface via ASCII- based Commands on page 27.) or access the Fibre Channel page of the ExpressNAV interface.

The FCConnMode CLI command specifies the Fibre Channel topology for both HICs on a Diamond-VT. Options are loop only (loop), point- to-point only (ptp), loop preferred (loop-ptp) or point-to-point preferred (ptp-loop).

Loop connects to either an FC-AL arbitrated loop or a fabric loop port (FL_Port) on a switch.

Point-to-point (ptp) connects to a direct fabric connection, such as an F port on a switch.

Loop-ptpallows the Diamond-VT to determine what kind of connection to use, but tries to connect in loop mode first, then point-to-point mode.

Ptp-loopallows the card to determine what kind of connection to use, but tries to connect in point-to- point mode first, then loop mode.

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ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual

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Contents Diamond Storage Array VT-Class Page Page Contents Atto ExpressNAV Browser-based Interface ExpressNAV PagesMaintenance Services Commands Fibre Channel Configuration CommandsSerial Port Configuration Commands Diagnostic CommandsDrive Management Commands ECCResetting Defaults Configuring the Diamond-VTDiagnostics, Upgrade and Maintenance Troubleshooting Virtual TapeAppendix F Product Safety Xiii Appendix D Sample Zoning Command SequencesAppendix E Specifications Xii Appendix G Part numbers Xiv Appendix H WarrantyDisclaimer PrefaceAtto Technology, Inc Page Diamond-VT features Diamond Storage Array-VT Product OverviewFibre Channel model Scsi modelEthernet Diamond-VT Technical OverviewRS-232 400MB/secAdxt Powers ATA to New Levels ATA Interface Engine AIE The interface to eachSet up the Ethernet connection Installation InstructionsPhysical setup Connect to EthernetConnect to Ethernet, on page 5, follow Set up Virtual Tape configurationConfiguration examples RAID Level 10 with Hot Spare sledsDiamond-VT Components Floor modelRack mount model Floor Model Diamond-VT Physical SetupRack Mount Physical setup Autoconfiguration Connecting a Fibre Channel ArrayManual configuration Fibre Channel connections Bus speed, MB/sec Bus width Max. bus lengths Max. device Connecting a Scsi ArrayTo connect the Scsi Diamond-VT BitsScsi connections Atto ExpressNAV Accessing the Diamond-VTCommand Line Interface RS-232 portSnmp Details In-band CLI Over Fibre ChannelInitiator Host Diamond-VT Initiator/Host Diamond-VT Serial Port Access Serial port access To use Telnet Ethernet Access Telnet and Snmp ProtocolsTo connect to the Ethernet port To use SnmpTraps are generated for the following situations Navigating ExpressNAV Atto ExpressNAV Browser-based InterfaceBrowser compatibility Reset button Parameter name Submit buttonExpressNAV Pages Logical Units Tape VolumesConfiguration PartitionsSaveConfiguration command CLI Interface via ASCII-based CommandsReady Return type/mode Return format/content HostnameSummary of CLI Commands Command Defaults ExampleCLI index Zoneaddhost zone1 General Use Commands Ethernet Commands TelnetTimeout SNMPUpdatesTelnetPassword SNMPTrapsFibre Channel Configuration Commands FcScsiBusyStatus FcPortListFcPortName FcWWNameSerialPortHandshake Serial Port Configuration CommandsSerialPortBaudRate SerialPortEchoMaintenance Services Commands Diagnostic Commands TapeVolumeInfo PowerAudibleAlarmSledFaultLED RAID5ClearDataStatusDrive Management Commands IdeTransferRate DriveWipeLUNState IdeWriteCacheRAIDHaltRebuild RAID5ClearDataRAIDInterleave RAIDManualRebuildRebuildPriority RestoreModePagesTapeVolumeBlockSize TapeWriteProtectZoneDelete ZoneClearAllZoneCreate ZoneRemoveDeviceCLI configure drives RAID Level Configuring the Diamond-VTVirtual Tape Volumes Hot Spare sledsInterleave Enhancing performanceVirtual Tape To set up RAID Level 10 with Hot Spare sleds Optional Hot Spare SledPrinciples of Zoning Planned configuration is a work-in-processZones Device portion defines the LUNsStatus and Sense Data Factors to considerType ZoneInfo To remove zones Configuring ZoningTo create a zone To change current zonesErrors Zone definition tables The Zone commandsUpdating firmware via the RS-232 serial port Updating FirmwareUpdating firmware via the optional Ethernet card Cd c\diamond\flash Type put ....imaRS-232 Monitoring Port and CLI One tool to Diagnostics, Upgrade and MaintenancePower On Self Test Post Each time Ethernet Monitoring Port and CLI If the optionalSystem Fault LED and Error Codes If a serious Power Supply Monitoring The Diamond-VT25C 32C 35C 40C Disk Drive Activity and Disk Fault LEDs Each Monitoring, reporting Command Line Interface messages TroubleshootingWindows 2000 special instructions Error Messages Specific situations and suggestionsIf you cannot read or write to the Diamond-VT If a power supply failsIf you can’t access the Diamond-VT CLI via Ethernet Type FirmwareRestart in CLIDefault Resetting DefaultsFactory Default Return to Default settingsCommand Default Rebuilding RAID Level 5 and 10 Configurations To synchronize mirrored drives manually Hardware Maintenance Hardware maintenance Hot Swap Operating Instructions Disk DrivesTo replace a blower assembly Power SuppliesBlower Assemblies SAN technology Appendix a GlossaryFibre Channel technology Scsi protocolAppendix Appendix B ATA Disk Technology FeatureFibre Channel Appendix C LunInfo for a Jbod setup LunInfo PartitionInfo active 59TapeVolumeInfo ZoneInfoViii Simple configuration Appendix D Sample Zoning Command SequencesFirst time configuration after download Symmetric ModelZoneAddPort zone1 ZoneCreate zone2 Asymmetric ModelZoneClearAll ZoneCreate zone1 ZoneAddPort zone2 ZoneCreate zone3Combined Symmetric/Asymmetric Model Floor Mount Dimensions Appendix E SpecificationsRack Mount Dimensions Environmental and physicalEMC specifications Appendix F Product SafetySafety compliances Radio and television interferenceAppendix G Part numbers Description All modelsManufacturer limited warranty Appendix H WarrantyContact Atto Technology, Inc
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