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XVIII Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide • March 2003

Sun Proprietary/Confidential: Internal Use Only

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Sun Microsystems 3900 Related Documentation, Sun Proprietary/Confidential Internal Use Only, Product, Title, Part Number

Contents

March 2003, Revision A Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting GuideSun Microsystems, Inc 4150 Network Circle Santa Clara, CA 95054 U.S.A Send comments about this document to docfeedback@sun.comPlease Recycle Contents Sun Proprietary/Confidential Internal Use Only5. Troubleshooting the Fibre Channel FC Links 3. Troubleshooting Tools4. Troubleshooting Ethernet Hubs Sun Proprietary/Confidential Internal Use Only6. Troubleshooting Host Devices Sun Proprietary/Confidential Internal Use Only8. Troubleshooting the Sun StorEdge T3+ Array Devices setupswitch Exit Values7. Troubleshooting Switches 9. Troubleshooting Virtualization Engine Devices10. Troubleshooting Using Microsoft Windows Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only Example of Fault IsolationConfiguration Utility Error Messages Virtualization Engine ReferencesList of Figures Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only A4 or B4 FC Link Data-Host NotificationSun Proprietary/Confidential Internal Use Only Successful Switch Test ResultsRecovered Paths List of FiguresSun Proprietary/Confidential Internal Use Only List of Tables Sun Proprietary/Confidential Internal Use OnlyTABLE A-5 Virtualization Engine Error MessagesSun Proprietary/Confidential Internal Use Only TABLE B-1Preface How This Book Is OrganizedSun Proprietary/Confidential Internal Use Only Using UNIX Commands Solaris Handbook for Sun PeripheralsSun Proprietary/Confidential Internal Use Only Typographic Conventions Shell PromptsSun Proprietary/Confidential Internal Use Only Product Related DocumentationSun Proprietary/Confidential Internal Use Only TitleSANbox-8/16 SwitchSun Proprietary/Confidential Internal Use Only Segmented Loop FCdocfeedback@sun.com Accessing Sun Documentation OnlineSun Welcomes Your Comments Sun Proprietary/Confidential Internal Use OnlyIntroduction TABLE 1-1 Sun StorEdge 3900 and 6900 Series ConfigurationsSun Proprietary/Confidential Internal Use Only Predictive Failure Analysis PFA Capabilities 2 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only General Troubleshooting Procedures High-Level Troubleshooting TasksSun Proprietary/Confidential Internal Use Only Storage Automated Diagnostic Environment alerts or email messages Sun Proprietary/Confidential Internal Use OnlyChapter 2 General Troubleshooting Procedures Sun Proprietary/Confidential Internal Use Only8. Verify the fix using the following tools Host-Side TroubleshootingStorage Service Processor-Side Troubleshooting 9. Return the path to service with one of the following methodsVerifying the Configuration Settings To Verify Configuration SettingsSun Proprietary/Confidential Internal Use Only CODE EXAMPLE 2-1 checkdefaultconfig1M Output # /opt/SUNWsecfg/checkdefaultconfigSun Proprietary/Confidential Internal Use Only 3. Fix the FAIL condition, and then verify the settings again # /opt/SUNWsecfg/bin/checkt3config -n t3b0Sun Proprietary/Confidential Internal Use Only Clearing the Lock File To Clear the Lock FileSun Proprietary/Confidential Internal Use Only Switch Sun StorEdge 6900 Series Multipathing ExampleChapter 2 General Troubleshooting Procedures Switch12 Sun StorEdge 3900 and 6900 2.0 Series Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyFIGURE 2-2 Primary Data Paths to the Alternate Master Sun Proprietary/Confidential Internal Use Only FIGURE 2-3 Primary Data Paths to the Master Sun StorEdge T3+ Arraywhich illustrates a path failure before the second tier of switches Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only FIGURE 2-5 Path Failure-I/O Routed Through Both HBAs# /usr/sbin/luxadm display Multipathing Options in the Sun StorEdge 6900 SeriesSun Proprietary/Confidential Internal Use Only ClassTo Quiesce the I/O To Unconfigure the c2 PathManually Halting the I/O Sun Proprietary/Confidential Internal Use OnlySuspending the I/O Sun Proprietary/Confidential Internal Use OnlyTo Put the c2 Path Back into Production # cfgadm -c configure c22b000060220041f4Sun Proprietary/Confidential Internal Use Only state=enabled To View the Dynamic Multi-Pathing DMP Propertiesc20t2B000060220041F4d0s2 c23t2B000060220041F9d0s2 state=enabledSun Proprietary/Confidential Internal Use Only # /usr/sbin/luxadm display /dev/rdsk/c20t2B000060220041F4d0s2# luxadm display /dev/rdsk/c23t2B000060220041F9d0s2 # vxdmpadm listctlr all To Put the DMP-Enabled Paths Back into Production# vxdmpadm enable ctlr=cn 22 Sun StorEdge 3900 and 6900 2.0 Series Troubleshooting Guide MarchTroubleshooting Tools Storage Automated Diagnostic EnvironmentSun Proprietary/Confidential Internal Use Only Example Topology FIGURE 3-1 Storage Automated Diagnostic Environment Example TopologySun Proprietary/Confidential Internal Use Only Generating Component-Specific Event Grids To Customize an Event ReportSun Proprietary/Confidential Internal Use Only Microsoft Windows 2000 System Errors Sun Proprietary/Confidential Internal Use OnlyFIGURE 3-2 Microsoft Windows 2000 Event Properties System Log Command Line Test Examples qlctest1MSun Proprietary/Confidential Internal Use Only switchtest1M switchtest called with options dev=2192.168.0.300x0xfersize=200Sun Proprietary/Confidential Internal Use Only http//webhome.eng/mdeSW/Project/Explorer.html Monitoring Sun StorEdge T3 and T3+ Arrays Using the Explorer DataCollection Utility Sun Proprietary/Confidential Internal Use OnlyExample Sun Proprietary/Confidential Internal Use OnlyYou can now run /opt/SUNWexplo/bin/explorer for information about the Storage Service Processor operating system, the Sun StorEdge network FC switch- 8 or switch-16 switch, and Sun StorEdge T3+ array information that you can use for troubleshooting purposes Sun Proprietary/Confidential Internal Use OnlyMonitoring Host Bus Adapters HBAs Using QLogic SANblade Manager Sun Proprietary/Confidential Internal Use OnlyChapter 3 Troubleshooting Tools Sun Proprietary/Confidential Internal Use OnlyFIGURE 3-3 Qlogic SANblade Manager HBA Driver and Firmware Versions FIGURE 3-4 QLogic SANblade Manager Diagnostics 34 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only Troubleshooting Ethernet Hubs Sun Proprietary/Confidential Internal Use Only36 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyTroubleshooting the Fibre Channel FC Links Sun Proprietary/Confidential Internal Use OnlyFC Links Sun Proprietary/Confidential Internal Use OnlyLinks FC Link Diagrams Sun Proprietary/Confidential Internal Use OnlyHOST Sun Proprietary/Confidential Internal Use Only TABLE 5-2 Ax to Bx FC LinksFIGURE 5-2 Sun StorEdge 6900 Series FC Link Diagram Chapter 5 Troubleshooting the Fibre Channel FC LinksSun Proprietary/Confidential Internal Use Only Troubleshooting the A1 or B1 FC Link Sun Proprietary/Confidential Internal Use OnlyFIGURE 5-3 Data Host Notification of Intermittent Problems FIGURE 5-4 Data Host Notification of Severe Link ErrorSun Proprietary/Confidential Internal Use Only FIGURE 5-5 Storage Service Processor Notification 44 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only # /usr/sbin/luxadm display Verifying the Data HostSun Proprietary/Confidential Internal Use Only StateFRU Tests Available for the A1 or B1 FC Link Segment Sun Proprietary/Confidential Internal Use Only# /opt/SUNWstade/Diags/bin/switchtest -v -o dev=2192.168.0.300 CODE EXAMPLE 5-3 switchtest1M Called With OptionsChapter 5 Troubleshooting the Fibre Channel FC Links Sun Proprietary/Confidential Internal Use OnlyTo Isolate the A1 or B1 FC Link Sun Proprietary/Confidential Internal Use OnlyTroubleshooting the A2 or B2 FC Link Sun Proprietary/Confidential Internal Use OnlyFIGURE 5-6 A2 or B2 FC Link Host-Side Event FIGURE 5-7 A2 or B2 FC Link Storage Service Processor-Side Event 50 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Chapter 5 Troubleshooting the Fibre Channel FC LinksVerifying the Data Host # /usr/sbin/cfgadm -alTo Isolate the A2 or B2 FC Link Verifying the A2 or B2 FC LinkFRU Tests Available for the A2 or B2 FC Link Segment 3. Insert the loopback connector in to the switch portSun Proprietary/Confidential Internal Use Only 6. Return the path to productionTroubleshooting the A3 or B3 FC Link Sun Proprietary/Confidential Internal Use OnlyFIGURE 5-8 A3 or B3 FC Link Host-Side Event FIGURE 5-9 A3 or B3 FC Link Storage Service Processor-Side Event FIGURE 5-10 A3 or B3 FC Link Storage Service Processor-Side EventSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only 56 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchVerifying the Data Host # cfgadm -alvxvmvxdmp disabled path 118/0x1f8 belonging to the dmpnode 231/0xd0 Verifying the Storage Service Processor-SideFRU Tests Available for the A3 or B3 FC Link Segment Sun Proprietary/Confidential Internal Use OnlyTo Isolate the A3 or B3 FC Link 58 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only Suspending the I/O on the A3 to B3 Link # /usr/bin/vxdmpadm disable ctlr=cnQuiescing the I/O on the A3 or B3 Link # /usr/bin/vxdmpadm listctlr allTroubleshooting the A4 or B4 FC Link Sun Proprietary/Confidential Internal Use OnlyFIGURE 5-11 A4 or B4 FC Link Data-Host Notification FIGURE 5-12 Storage Service Processor-Side Notification Chapter 5 Troubleshooting the Fibre Channel FC LinksSun Proprietary/Confidential Internal Use Only 62 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun StorEdge 3900 SeriesSun StorEdge 6900 Series Verifying the Data Host# /usr/sbin/luxadm display /dev/rdsk/c26t60020F200000644 Chapter 5 Troubleshooting the Fibre Channel FC LinksSun Proprietary/Confidential Internal Use Only State64 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March FRU Tests Available for the A4 or B4 FC Link SegmentTo Isolate the A4 or B4 FC Link configuredSun Proprietary/Confidential Internal Use Only 66 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyTo Access the Host Event Grid Troubleshooting Host DevicesUsing the Host Event Grid Sun Proprietary/Confidential Internal Use Only68 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyFIGURE 6-1 Sample Host Event Grid Troubleshooting Host Devices Sun Proprietary/Confidential Internal Use OnlyChapter 70 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyReplacing the Master, Alternate Master, and Slave Monitoring Host To Replace the Master HostSun Proprietary/Confidential Internal Use Only To Replace the Alternate Master or Slave Monitoring Host Sun Proprietary/Confidential Internal Use OnlyTroubleshooting Switches About the SwitchesSun Proprietary/Confidential Internal Use Only 4. Online the T ports interswitch links Zone Modifications1. Offline the T ports interswitch links Sun Proprietary/Confidential Internal Use OnlySwitchless Configurations Diagnosing and Troubleshooting Switch Hardware ProblemsSun Proprietary/Confidential Internal Use Only # restoreswitch -s switch 76 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only Using the Switch Event Grid To Use the Switch Event GridSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only switch diag156-sw1b78 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March ip=192.168.0.31 ”Sun Proprietary/Confidential Internal Use Only Description80 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only 82 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only 84 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use Onlythe /var/adm/log/SEcfglog file setupswitch Exit ValuesSun Proprietary/Confidential Internal Use Only 86 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyTroubleshooting the Sun StorEdge T3+ Array Devices Sun Proprietary/Confidential Internal Use OnlyTroubleshooting the T1 or T2 Data Path Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only Notification EventsA port on the switch has logged out of the fabric and gone offline FIGURE 8-1 shows a typical port failure eventFIGURE 8-2 Virtualization Engine Alert 90 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only continued on next pageChapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices Sun Proprietary/Confidential Internal Use Onlycontinued from previous page To Verify the Storage Service Processor Sun Proprietary/Confidential Internal Use OnlyChapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices FRU Tests Available for the T1 or T2 Data Path FRURun the switchtest to test the switches Sun Proprietary/Confidential Internal Use OnlyTo Isolate the T1 or T2 Data Path Sun Proprietary/Confidential Internal Use Only2. After replacing the failed FRU, run failbackt3path , if needed Sun StorEdge T3+ Array Event Grid To Use the Sun StorEdge T3+ Array Event GridSun Proprietary/Confidential Internal Use Only 96 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide March Sun Proprietary/Confidential Internal Use OnlyTABLE 8-1 lists all of the events for the Sun StorEdge T3+ array encid12 Sun Proprietary/Confidential Internal Use OnlyValue Description Run refresh -s towith fru stat 98 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide MarchSun Proprietary/Confidential Internal Use Only fru statSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only and sysstat enable uSun Proprietary/Confidential Internal Use Only Run loggerSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only or volstatSun Proprietary/Confidential Internal Use Only Troubleshooting Virtualization Engine Devices About the Virtualization EngineSun Proprietary/Confidential Internal Use Only Service and Diagnostic Codes Virtualization Engine DiagnosticsService Request Numbers SRNs Retrieving Service InformationChapter 9 Troubleshooting Virtualization Engine Devices Error Log Analysis CommandsTo Display the Log Files and Retrieve SRNs Sun Proprietary/Confidential Internal Use OnlyExample Virtualization Engine LEDsTo Clear the Log Sun Proprietary/Confidential Internal Use OnlyPower LED Codes Interpreting LED Service and Diagnostic CodesSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Back Panel FeaturesEthernet Port LEDs FIGURE 9-2 Virtualization Engine Back PanelFC Link Error Status Report To Check the FC Link Error Status ManuallySun Proprietary/Confidential Internal Use Only Note -v1 represents the first virtualization engine pair Daemon error check the SLIC routerSun Proprietary/Confidential Internal Use Only # /opt/svengine/sduc/svstat -dTranslating Host-Device Names Sun Proprietary/Confidential Internal Use OnlyCODE EXAMPLE 9-2 luxadm Output for a Host Device Sun Proprietary/Confidential Internal Use Only Displaying the VLUN Serial Number1. Use the format -e command 3. Type inquiry at the scsi promptTo Display Sun StorEdge Traffic Manager MPxIO-Enabled Devices Sun Proprietary/Confidential Internal Use OnlyViewing the Virtualization Engine Map Sun Proprietary/Confidential Internal Use Only1. To view the virtualization engine map, type Sun Proprietary/Confidential Internal Use Only Determining the virtualization engine pairs on the systemCODE EXAMPLE 9-3 Multipath Drive Summary To Failback the Virtualization EngineSun Proprietary/Confidential Internal Use Only CODE EXAMPLE 9-4 Sun StorEdge T3+ array and Disk Pool Namea. If no failures occur, the command exits with no output Sun Proprietary/Confidential Internal Use OnlyCODE EXAMPLE 9-6 Error-Free Online Switch Ports # showswitch -s sw2aSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Manually Clearing and Restoring the SAN Database9. After the problem has been corrected, repeat Step 6. If either port 1 or port 2 is offline, check the GBICs and cables# resetve -n vehostname To Reset the SAN Database on Both Virtualization Engines# resetsandb -n vepair # restorevemap -n vepair Sun Proprietary/Confidential Internal Use OnlyTo Reset the SAN Database on a Single Virtualization Engine Sun Proprietary/Confidential Internal Use OnlyTo Restart the slicd Daemon connect Connection refused or Socket error encounteredRestarting the slicd Daemon Sun Proprietary/Confidential Internal Use Only5. Confirm that the slicd daemon is running Sun Proprietary/Confidential Internal Use Only4. To restart the slicd for the v1 virtualization engine, type a. Open a Telnet session into v1hostnameError None Sun Proprietary/Confidential Internal Use OnlyDiagnosing a creatediskpools1M Failure Sun Proprietary/Confidential Internal Use Only2. Run the showswitch1M command for sw2a and sw2b # showswitch -s sw2aSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only The SEcfglog file should display the following message# creatediskpools -n t3b0 Virtualization Engine Event Grid To Use the Virtualization Engine Event GridSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only TABLE 9-5 lists the Virtualization Engine EventsSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Troubleshooting Using Microsoft Windows General NotesSun Proprietary/Confidential Internal Use Only Troubleshooting Tasks Using Microsoft Windows Launching the Sun StorEdge T3+ Array Failover Driver GUISun Proprietary/Confidential Internal Use Only Checking the Version of the Sun StorEdge T3+ Array Failover Driver Chapter 10 Troubleshooting Using Microsoft Windows 2000Sun Proprietary/Confidential Internal Use Only To Use the Sun StorEdge T3+ Array Failover Driver GUI Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only 5. To further check the affected Sun StorEdge T3+ arrayThe Multipath Configurator LUN Properties detail window is displayed Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only SERIAL00163874 WWN60020f20000003d50000000000000000Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only TABLE 10-1 Tips for Interpreting Sun StorEdge 6910 Series CLI OutputSun Proprietary/Confidential Internal Use Only Example of Fault Isolation 1. Discover the ErrorSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only 2. Check the Sun StorEdge T3+ Array Failover Driver3. Check the HBA FIGURE 11-3 Fault Confirmation Using QLogic SunBladeSun Proprietary/Confidential Internal Use Only 4. Isolate the components in the pathFIGURE 11-4 Diagnostics Using QLogic SunBlade Sun Proprietary/Confidential Internal Use OnlyNote -All tests were run with the default values Chapter 11 Example of Fault IsolationSun Proprietary/Confidential Internal Use Only FIGURE 11-6 Storage Automated Diagnostic Environment Test from Topology Pull-Down Menu Sun Proprietary/Confidential Internal Use Only6. Recover the problem with the GBIC or the switch Sun Proprietary/Confidential Internal Use OnlyNote -Storage Automated Diagnostic Environment should also post an event noting that the Port has gone back online Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only Virtualization Engine ReferencesSRN Reference A P P E N D I X ASun Proprietary/Confidential Internal Use Only TABLE A-1 SRN ReferenceSun Proprietary/Confidential Internal Use Only Appendix A Virtualization Engine ReferencesSun Proprietary/Confidential Internal Use Only SRN/SNMP Single Point-of-Failure Descriptions Sun Proprietary/Confidential Internal Use OnlySRN/SNMP Single Point-of-Failure Table Sun Proprietary/Confidential Internal Use Only Virtualization Engine Service CodesPort Communication Numbers TABLE A-3 Port CommunicationNumbersSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Configuration Utility Error Messages Sun Proprietary/Confidential Internal Use OnlyVirtualization Engine Error Messages TABLE B-1 Virtualization Engine Error MessagesSun Proprietary/Confidential Internal Use Only TABLE B-1 Virtualization Engine Error Messages Continued Appendix B Configuration Utility Error MessagesSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only TABLE B-1 Virtualization Engine Error Messages Continued Sun Proprietary/Confidential Internal Use OnlySwitch Error Messages TABLE B-2 Sun StorEdge Network FC Switch Error MessagesSun Proprietary/Confidential Internal Use Only TABLE B-2 Sun StorEdge Network FC Switch Error Messages Continued Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only Sun StorEdge T3+ Array Partner Group Error Messages TABLE B-3 Sun StorEdge T3+ Array Error MessagesSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only TABLE B-3 Sun StorEdge T3+ Array Error Messages ContinuedReference and Service Guide StorEdge 3900 and 6900 SeriesTABLE B-3 Sun StorEdge T3+ Array Error Messages Continued Sun Proprietary/Confidential Internal Use OnlySun Proprietary/Confidential Internal Use Only Other Error Messages TABLE B-4 Other SUNWsecfg Error MessagesSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only FC Fibre Channel Abbreviations and AcronymsSun Proprietary/Confidential Internal Use Only GBIC gigabit interface converter GUI graphical user interfaceSun Proprietary/Confidential Internal Use Only POST power on self testRSS Remote Storage Services SAN storage area network VLUN virtual LUNIndex NUMERICSSun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only Sun Proprietary/Confidential Internal Use Only zone modiﬁcations