Texas Memory Systems RamSan-300/320 manual Configuring high availability, Primary Active

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7.2Configuring high availability

The administrator can configure the RamSan’s Fibre Channel (FC) controllers to back each other up in case of a failure. There are five basic FC controller states. To view or change the state:

•From the Telnet Main Menu, select “Controller setup”

Figure 7-4: Controller Setup Menu

The Controller Setup screen, see Figure 7-4, displays the selected controller at the top of the screen. Next to the controller number, the display indicates the controller’s states. In Figure 7-4, the selected controller is “2” and the display indicates that the controller’s state is “Primary (Active, Secondary is 3).” The following list details what these states mean, how a controller can end up in each state, and what a controller’s options are from the states:

Primary (Active)

This default state is the most basic state. In this state, the controller is not associated with any of the other FC controllers. The administrator can modify any controller setting from this state, and the effect will be local to this controller. This controller’s links are enabled and can be used to transmit and receive data.

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Contents RamSan-300/320 User’s Manual RamSan-300/320 User’s Manual Table of Contents Batteries Fans Preface Safety PrecautionsDocument Overview ConventionsFollowing table describes revisions to this document Revision HistoryOverview IntroductionNon-Volatility PowerSystem Components Active BackupTM mode optional Configurable BackupPerformance Battery Warning InstallationElectro-Static Discharge Warning System InspectionRamSan-320 Connecting the Power Supplies Connecting the Fibre Channel PortsRack Mounting FC 4 FCPower switch Power AC VoltageSystem Initialization AC Voltage indicator lightTurning on the System System is now ready for normal operation Front Panel Display Management Tool OverviewFront Panel menu system layout Connecting using a terminal programText Management Interface General interface layout and instructions Connecting using TelnetText Management Interface Sub-Menu Scrolling Sub-Menus Web Management InterfaceWeb Management Interface Set password Administration FunctionsSecurity Logging into the systemClick on the Management Control Processor graphic Via Web InterfaceVia Text Management Enable/disable TelnetVia Web Management Enable/Disable TelnetTelnet Setup From the Telnet Main Menu, select Management setupEnable/disable Snmp Enable/disable Web InterfaceConfiguring Ethernet settings via Front Panel Configuring Ethernet settingsDhcp Subnet Mask Select IP assignment mode Configuring Ethernet settings via Text Management InterfaceManual shutdown Power Down SettingsVia Front Panel Display Select Select hostnameAutomatic shutdown From the Telnet Main Menu, select Power down systemMonitoring Functions Restore/Synchronize ProgressViewing system health and status Front panel monitoringStatus ErrorFibre Channel Performance Active Monitor ModeLED Display LED Performance MonitoringIdentify Device button Identifying a RamSanSystem Uptime Status Viewing system uptimeHealth and Status From the Telnet Main Menu, select Health and StatusDisk Status via Web interface Viewing system healthBatteries Not displayed for the RamSan-300 Management Control Processor Power supplies Fans Good 10 Fibre Channel Controller Status via Web Interface Viewing detailed fibre channel controller statusVia Text Management Viewing IO/second summary Via Web Interface Statistics13 IO/sec Summary 14 Bandwidth Performance Graph via Web Interface Viewing bandwidth summary15 Bandwidth Performance via Text Management Interface Viewing controller details LogsViewing the system event and support logs Click the Management Control Processor graphicClearing the system event log Clearing logged ECC errorsGigabytes System Memory LUN ConfigurationFibre Channel ControllerReconfigured LUN Mapping Example LUN configurationVia Web Interface Adding LUNsVia Text Management From the Telnet Main Menu, select LUN Setup Select Add LUNsSelect Change number of LUNs to add Select Change size of LUNs to addTo view the LUNs for the entire system Viewing LUN status / LUN mapVia the Web Interface Viewing LUNs Assigned to FC ports via Web Interface LUN Map Screen Linking LUNs to/from Fibre Channel ControllersVia Text Management Linking Fibre Channel Controllers Select Exit to the LUN configuration menuSelect Unlink LUNs from selected controller Unlinking Fibre Channel ports from LUNSelect Assign different LUN # to this LUN Changing LUN numbersSelect Resize LUN Resizing LUNsSelect Print detailed WWN mask list for LUN Managing access listsViewing Current Access Lists Select Delete WWN mask from LUN Adding Access ListsDeleting Access Lists Select Set Scsi device identifier Setting Scsi device identifiers14 Deleting LUNs via Web Interface Deleting LUNs15 Deleting LUNs Setting backup modeSelect Set backup mode for this LUN Volatile mode optional Changing Fibre Channel topology and link speed Fibre Channel Controller ConfigurationSelect Save changes and exit Select Change topologySelect Change link speed Auto-Detect Error Primary Active Configuring high availabilityFrom the Telnet Main Menu, select Controller setup Primary Passive, Secondary is Primary Active, Secondary isSecondary Passive, Primary is Secondary Active, Primary is Hot Swapping Disk Drives System MaintenanceHot Swapping Power Supplies Fans BatteriesStill Having Problems… TroubleshootingSystem Event Log Support LogPhysical Characteristics SpecificationsOperating Environment Non-operating EnvironmentFigure A-1 MCP-65 Management Control Processor Appendix a RamSan-3xx Series Replacement PartsFigure B-3 Power Supply Module Figure A-6 120 Gigabyte Replacement Hard Drive Appendix B FCC/Safety Notices Return to Factory Field ServiceTelephone and Software Support Repairs/ReturnsPlatinum Warranty On-site Repair 24/7 Silver Warranty Advanced Parts ReplacementGold Warranty On-site Repair Business Hours Outside of Warranty