March 2003, Revision A
Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide
Sun Microsystems, Inc 4150 Network Circle Santa Clara, CA 95054 U.S.A
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Contents
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5. Troubleshooting the Fibre Channel FC Links
3. Troubleshooting Tools
4. Troubleshooting Ethernet Hubs
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6. Troubleshooting Host Devices
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8. Troubleshooting the Sun StorEdge T3+ Array Devices
setupswitch Exit Values
7. Troubleshooting Switches
9. Troubleshooting Virtualization Engine Devices
10. Troubleshooting Using Microsoft Windows
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Example of Fault Isolation
Configuration Utility Error Messages
Virtualization Engine References
List of Figures
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A4 or B4 FC Link Data-Host Notification
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Successful Switch Test Results
Recovered Paths
List of Figures
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List of Tables
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TABLE A-5
Virtualization Engine Error Messages
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TABLE B-1
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Preface
How This Book Is Organized
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Using UNIX Commands
Solaris Handbook for Sun Peripherals
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Typographic Conventions
Shell Prompts
Product
Related Documentation
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Title
SANbox-8/16
Switch
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Segmented Loop FC
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Introduction
TABLE 1-1 Sun StorEdge 3900 and 6900 Series Configurations
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Predictive Failure Analysis PFA Capabilities
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General Troubleshooting Procedures
High-Level Troubleshooting Tasks
Storage Automated Diagnostic Environment alerts or email messages
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Chapter 2 General Troubleshooting Procedures
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8. Verify the fix using the following tools
Host-Side Troubleshooting
Storage Service Processor-Side Troubleshooting
9. Return the path to service with one of the following methods
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Verifying the Configuration Settings
To Verify Configuration Settings
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CODE EXAMPLE 2-1 checkdefaultconfig1M Output
# /opt/SUNWsecfg/checkdefaultconfig
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3. Fix the FAIL condition, and then verify the settings again
# /opt/SUNWsecfg/bin/checkt3config -n t3b0
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Clearing the Lock File
To Clear the Lock File
Switch
Sun StorEdge 6900 Series Multipathing Example
Chapter 2 General Troubleshooting Procedures
Switch
FIGURE 2-2 Primary Data Paths to the Alternate Master
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FIGURE 2-3 Primary Data Paths to the Master Sun StorEdge T3+ Array
which illustrates a path failure before the second tier of switches
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FIGURE 2-5 Path Failure-I/O Routed Through Both HBAs
# /usr/sbin/luxadm display
Multipathing Options in the Sun StorEdge 6900 Series
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Class
To Quiesce the I/O
To Unconfigure the c2 Path
Manually Halting the I/O
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Suspending the I/O
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To Put the c2 Path Back into Production
# cfgadm -c configure c22b000060220041f4
state=enabled
To View the Dynamic Multi-Pathing DMP Properties
c20t2B000060220041F4d0s2 c23t2B000060220041F9d0s2
state=enabled
# luxadm display /dev/rdsk/c23t2B000060220041F9d0s2
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# /usr/sbin/luxadm display /dev/rdsk/c20t2B000060220041F4d0s2
# vxdmpadm listctlr all
To Put the DMP-Enabled Paths Back into Production
# vxdmpadm enable ctlr=cn
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Troubleshooting Tools
Storage Automated Diagnostic Environment
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Example Topology
FIGURE 3-1 Storage Automated Diagnostic Environment Example Topology
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Generating Component-Specific Event Grids
To Customize an Event Report
FIGURE 3-2 Microsoft Windows 2000 Event Properties System Log
Microsoft Windows 2000 System Errors
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Command Line Test Examples
qlctest1M
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switchtest1M
switchtest called with options dev=2192.168.0.300x0xfersize=200
http//webhome.eng/mdeSW/Project/Explorer.html
Monitoring Sun StorEdge T3 and T3+ Arrays Using the Explorer Data
Collection Utility
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Example
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You 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
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Monitoring Host Bus Adapters HBAs Using QLogic SANblade Manager
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FIGURE 3-3 Qlogic SANblade Manager HBA Driver and Firmware Versions
Chapter 3 Troubleshooting Tools
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FIGURE 3-4 QLogic SANblade Manager Diagnostics
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Troubleshooting Ethernet Hubs
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Troubleshooting the Fibre Channel FC Links
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Links
FC Links
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HOST
FC Link Diagrams
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TABLE 5-2 Ax to Bx FC Links
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FIGURE 5-2 Sun StorEdge 6900 Series FC Link Diagram
Chapter 5 Troubleshooting the Fibre Channel FC Links
Troubleshooting the A1 or B1 FC Link
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FIGURE 5-3 Data Host Notification of Intermittent Problems
FIGURE 5-4 Data Host Notification of Severe Link Error
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FIGURE 5-5 Storage Service Processor Notification
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# /usr/sbin/luxadm display
Verifying the Data Host
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State
FRU Tests Available for the A1 or B1 FC Link Segment
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# /opt/SUNWstade/Diags/bin/switchtest -v -o dev=2192.168.0.300
CODE EXAMPLE 5-3 switchtest1M Called With Options
Chapter 5 Troubleshooting the Fibre Channel FC Links
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To Isolate the A1 or B1 FC Link
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FIGURE 5-6 A2 or B2 FC Link Host-Side Event
Troubleshooting the A2 or B2 FC Link
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FIGURE 5-7 A2 or B2 FC Link Storage Service Processor-Side Event
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Chapter 5 Troubleshooting the Fibre Channel FC Links
Verifying the Data Host
# /usr/sbin/cfgadm -al
To Isolate the A2 or B2 FC Link
Verifying the A2 or B2 FC Link
FRU Tests Available for the A2 or B2 FC Link Segment
3. Insert the loopback connector in to the switch port
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6. Return the path to production
FIGURE 5-8 A3 or B3 FC Link Host-Side Event
Troubleshooting the A3 or B3 FC Link
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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 Event
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Verifying the Data Host
# cfgadm -al
vxvmvxdmp disabled path 118/0x1f8 belonging to the dmpnode 231/0xd0
Verifying the Storage Service Processor-Side
FRU Tests Available for the A3 or B3 FC Link Segment
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To Isolate the A3 or B3 FC Link
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Suspending the I/O on the A3 to B3 Link
# /usr/bin/vxdmpadm disable ctlr=cn
Quiescing the I/O on the A3 or B3 Link
# /usr/bin/vxdmpadm listctlr all
FIGURE 5-11 A4 or B4 FC Link Data-Host Notification
Troubleshooting the A4 or B4 FC Link
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FIGURE 5-12 Storage Service Processor-Side Notification
Chapter 5 Troubleshooting the Fibre Channel FC Links
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Verifying the Data Host
# /usr/sbin/luxadm display /dev/rdsk/c26t60020F200000644
Chapter 5 Troubleshooting the Fibre Channel FC Links
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State
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FRU Tests Available for the A4 or B4 FC Link Segment
To Isolate the A4 or B4 FC Link
configured
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To Access the Host Event Grid
Troubleshooting Host Devices
Using the Host Event Grid
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FIGURE 6-1 Sample Host Event Grid
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Chapter
Troubleshooting Host Devices
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Replacing the Master, Alternate Master, and Slave Monitoring Host
To Replace the Master Host
To Replace the Alternate Master or Slave Monitoring Host
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Troubleshooting Switches
About the Switches
4. Online the T ports interswitch links
Zone Modifications
1. Offline the T ports interswitch links
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Switchless Configurations
Diagnosing and Troubleshooting Switch Hardware Problems
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# restoreswitch -s switch
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Using the Switch Event Grid
To Use the Switch Event Grid
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switch diag156-sw1b
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ip=192.168.0.31 ”
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Description
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the /var/adm/log/SEcfglog file
setupswitch Exit Values
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Troubleshooting the Sun StorEdge T3+ Array Devices
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Troubleshooting the T1 or T2 Data Path
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Notification Events
A port on the switch has logged out of the fabric and gone offline
FIGURE 8-1 shows a typical port failure event
FIGURE 8-2 Virtualization Engine Alert
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continued on next page
continued from previous page
Chapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices
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To Verify the Storage Service Processor
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Chapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices
FRU Tests Available for the T1 or T2 Data Path FRU
Run the switchtest to test the switches
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2. After replacing the failed FRU, run failbackt3path , if needed
To Isolate the T1 or T2 Data Path
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Sun StorEdge T3+ Array Event Grid
To Use the Sun StorEdge T3+ Array Event Grid
TABLE 8-1 lists all of the events for the Sun StorEdge T3+ array
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encid12
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Value Description
Run refresh -s to
with fru stat
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fru stat
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and sysstat
enable u
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Run logger
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or volstat
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Troubleshooting Virtualization Engine Devices
About the Virtualization Engine
Service and Diagnostic Codes
Virtualization Engine Diagnostics
Service Request Numbers SRNs
Retrieving Service Information
Chapter 9 Troubleshooting Virtualization Engine Devices
Error Log Analysis Commands
To Display the Log Files and Retrieve SRNs
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Example
Virtualization Engine LEDs
To Clear the Log
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Power LED Codes
Interpreting LED Service and Diagnostic Codes
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Back Panel Features
Ethernet Port LEDs
FIGURE 9-2 Virtualization Engine Back Panel
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FC Link Error Status Report
To Check the FC Link Error Status Manually
Note -v1 represents the first virtualization engine pair
Daemon error check the SLIC router
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# /opt/svengine/sduc/svstat -d
CODE EXAMPLE 9-2 luxadm Output for a Host Device
Translating Host-Device Names
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Displaying the VLUN Serial Number
1. Use the format -e command
3. Type inquiry at the scsi prompt
To Display Sun StorEdge Traffic Manager MPxIO-Enabled Devices
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1. To view the virtualization engine map, type
Viewing the Virtualization Engine Map
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Determining the virtualization engine pairs on the system
CODE EXAMPLE 9-3 Multipath Drive Summary
To Failback the Virtualization Engine
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CODE EXAMPLE 9-4 Sun StorEdge T3+ array and Disk Pool Name
a. If no failures occur, the command exits with no output
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CODE EXAMPLE 9-6 Error-Free Online Switch Ports
# showswitch -s sw2a
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Manually Clearing and Restoring the SAN Database
9. 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
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To Reset the SAN Database on a Single Virtualization Engine
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To Restart the slicd Daemon
connect Connection refused or Socket error encountered
Restarting the slicd Daemon
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5. Confirm that the slicd daemon is running
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4. To restart the slicd for the v1 virtualization engine, type
a. Open a Telnet session into v1hostname
Error None
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Diagnosing a creatediskpools1M Failure
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2. Run the showswitch1M command for sw2a and sw2b
# showswitch -s sw2a
# creatediskpools -n t3b0
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The SEcfglog file should display the following message
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Virtualization Engine Event Grid
To Use the Virtualization Engine Event Grid
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TABLE 9-5 lists the Virtualization Engine Events
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Troubleshooting Using Microsoft Windows
General Notes
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Troubleshooting Tasks Using Microsoft Windows
Launching the Sun StorEdge T3+ Array Failover Driver GUI
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Checking the Version of the Sun StorEdge T3+ Array Failover Driver
Chapter 10 Troubleshooting Using Microsoft Windows 2000
To Use the Sun StorEdge T3+ Array Failover Driver GUI
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5. To further check the affected Sun StorEdge T3+ array
The Multipath Configurator LUN Properties detail window is displayed
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SERIAL00163874 WWN60020f20000003d50000000000000000
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TABLE 10-1 Tips for Interpreting Sun StorEdge 6910 Series CLI Output
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Example of Fault Isolation
1. Discover the Error
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2. Check the Sun StorEdge T3+ Array Failover Driver
3. Check the HBA
FIGURE 11-3 Fault Confirmation Using QLogic SunBlade
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4. Isolate the components in the path
FIGURE 11-4 Diagnostics Using QLogic SunBlade
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Note -All tests were run with the default values
Chapter 11 Example of Fault Isolation
FIGURE 11-6 Storage Automated Diagnostic Environment Test from Topology Pull-Down Menu
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6. Recover the problem with the GBIC or the switch
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Note -Storage Automated Diagnostic Environment should also post an event noting that the Port has gone back online
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Virtualization Engine References
SRN Reference
A P P E N D I X A
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TABLE A-1 SRN Reference
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Appendix A Virtualization Engine References
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SRN/SNMP Single Point-of-Failure Table
SRN/SNMP Single Point-of-Failure Descriptions
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Virtualization Engine Service Codes
Port Communication Numbers
TABLE A-3 Port CommunicationNumbers
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Configuration Utility Error Messages
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Virtualization Engine Error Messages
TABLE B-1 Virtualization Engine Error Messages
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TABLE B-1 Virtualization Engine Error Messages Continued
Appendix B Configuration Utility Error Messages
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TABLE B-1 Virtualization Engine Error Messages Continued
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Switch Error Messages
TABLE B-2 Sun StorEdge Network FC Switch Error Messages
TABLE B-2 Sun StorEdge Network FC Switch Error Messages Continued
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Sun StorEdge T3+ Array Partner Group Error Messages
TABLE B-3 Sun StorEdge T3+ Array Error Messages
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TABLE B-3 Sun StorEdge T3+ Array Error Messages Continued
Reference and Service Guide
StorEdge 3900 and 6900 Series
TABLE B-3 Sun StorEdge T3+ Array Error Messages Continued
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Other Error Messages
TABLE B-4 Other SUNWsecfg Error Messages
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FC Fibre Channel
Abbreviations and Acronyms
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GBIC gigabit interface converter GUI graphical user interface
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POST power on self test
RSS Remote Storage Services SAN storage area network
VLUN virtual LUN
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Index
NUMERICS
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zone modifications