ATTO Technology VT-Class manual Zones, Principles of Zoning, Device portion defines the LUNs

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device_lun
host_name

7.3 Zones

Zoning is a collection of related Diamond-VT capabilities supporting flexible Diamond configuration management configurable via CLI commands in the Command Line Interface mode or in the Advanced CLI Configuration page in the ExpressNAV interface. Zoning supports security by granting or denying access between initiators and devices as defined by an administrator.

A zone is a collection of devices which can access each other. The devices in a zone usually include one or more initiators, one or more devices, and one or more paths between the initiators and the devices.

To set up zones, use the Command Line Interface (see Accessing the Diamond-VT on page 15) or the Advanced CLI page in the ExpressNAV interface. Zone CLI commands only take effect after you enter the ZoneCommit command.

The individual elements are referred to as device_lun, host_name, port_number and zone_name as defined in Exhibit 7.3-1.

Exhibit 7.3-1 Definitions of zone configuration entries.

device_lun

The LUN of the RAID drive

 

 

host_name

In a Fibre Channel environment, the

 

WWPN; in a SCSI environment, SCSI

 

Initiator ID

 

 

port_number

The Diamond port number (0, 1) for the

 

data path

 

 

zone_name

Alphanumeric or ‘_’, character string less

 

than or equal to 16 characters long

 

 

Principles of Zoning

Zoning provides a validation filter for each SCSI command.

Each zone entry includes a named zone, a host portion, a port portion and a device portion. The components of a valid path from a host to a device satisfy the following conjunction:

<host_name> AND <port_list> AND device_list>

The zone is named to identify it from other zones. It appears as zone_name in this manual. The host portion defines the valid access path from a host through a port to a device (LUN), representing the Initiator ID in a SCSI

51

environment or the World Wide Port Name in a Fibre Channel environment. It appears as

in this manual.

The device portion defines the LUN(s)

participating in the zone. It appears as in this manual.

The port portion defines the Fibre Channel or SCSI port in the Diamond-VT. It appears as port_n in this manual.

The process: Each command received by the Diamond-VT is parsed to determine its host/HBA identifier, its port number and the target LUN, forming the zone nexus. This zone nexus is looked up in the defined zones table. If the zone nexus is present, the operation continues; if it is not found, the command is rejected with the appropriate status and sense data.

Two zone configurations accessed through the Command Line Interface regulate zoning:

The Planned configuration is a work-in-process

configuration used to build or edit the desired configuration. The Planned configuration does not control I/O access until it is transformed into the Active Zone Configuration via successful completion of the ZoneCommit command.

Other than as a site for zone configuration editing, the Planned configuration has no impact on the Active configuration or the Diamond-VT. Changes to the Planned configuration may be made without considering synchronization with other configuration commands.

Use the ZoneClearAll command to clear the Planned configuration.

If, while working in the Planned configuration, you decide you want to negate that configuration and edit the Active configuration, use the ZoneRetrieve command. The information from

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 WarrantyAtto Technology, Inc PrefaceDisclaimer 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 Rack Mount Diamond-VT Physical SetupFloor Model Physical setup Manual configuration Connecting a Fibre Channel ArrayAutoconfiguration 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 Initiator Host Diamond-VT In-band CLI Over Fibre ChannelDetails 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 Browser compatibility Atto ExpressNAV Browser-based InterfaceNavigating ExpressNAV Reset button Parameter name Submit buttonExpressNAV Pages Logical Units Tape VolumesConfiguration PartitionsReady CLI Interface via ASCII-based CommandsSaveConfiguration command 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 LUNsType ZoneInfo Factors to considerStatus and Sense Data To remove zones Configuring ZoningTo create a zone To change current zonesErrors Zone definition tables The Zone commandsUpdating firmware via the optional Ethernet card Updating FirmwareUpdating firmware via the RS-232 serial port 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 optional25C 32C 35C 40C Power Supply Monitoring The Diamond-VTSystem Fault LED and Error Codes If a serious 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 DrivesBlower Assemblies Power SuppliesTo replace a blower assembly SAN technology Appendix a GlossaryFibre Channel technology Scsi protocolAppendix Fibre Channel FeatureAppendix B ATA Disk Technology 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 modelsContact Atto Technology, Inc Appendix H WarrantyManufacturer limited warranty
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