Sun Microsystems, Inc 4150 Network Circle Santa Clara, CA 95054 U.S.A
Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide
March 2003, Revision A
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Contents
4. Troubleshooting Ethernet Hubs
3. Troubleshooting Tools
5. Troubleshooting the Fibre Channel FC Links
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6. Troubleshooting Host Devices
7. Troubleshooting Switches
setupswitch Exit Values
8. Troubleshooting the Sun StorEdge T3+ Array Devices
9. Troubleshooting Virtualization Engine Devices
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10. Troubleshooting Using Microsoft Windows
Configuration Utility Error Messages
Example of Fault Isolation
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Virtualization Engine References
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List of Figures
A4 or B4 FC Link Data-Host Notification
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Recovered Paths
Successful Switch Test Results
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List of Figures
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List of Tables
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Virtualization Engine Error Messages
TABLE A-5
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
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Related Documentation
Product
Title
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Switch
SANbox-8/16
Segmented Loop FC
Sun Welcomes Your Comments
Accessing Sun Documentation Online
docfeedback@sun.com
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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
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Storage Automated Diagnostic Environment alerts or email messages
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Chapter 2 General Troubleshooting Procedures
Storage Service Processor-Side Troubleshooting
Host-Side Troubleshooting
8. Verify the fix using the following tools
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
Chapter 2 General Troubleshooting Procedures
Sun StorEdge 6900 Series Multipathing Example
Switch
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
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which illustrates a path failure before the second tier of switches
FIGURE 2-5 Path Failure-I/O Routed Through Both HBAs
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Multipathing Options in the Sun StorEdge 6900 Series
# /usr/sbin/luxadm display
Class
Manually Halting the I/O
To Unconfigure the c2 Path
To Quiesce 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
c20t2B000060220041F4d0s2 c23t2B000060220041F9d0s2
To View the Dynamic Multi-Pathing DMP Properties
state=enabled
state=enabled
# luxadm display /dev/rdsk/c23t2B000060220041F9d0s2
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# /usr/sbin/luxadm display /dev/rdsk/c20t2B000060220041F4d0s2
# vxdmpadm enable ctlr=cn
To Put the DMP-Enabled Paths Back into Production
# vxdmpadm listctlr all
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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
Collection Utility
Monitoring Sun StorEdge T3 and T3+ Arrays Using the Explorer Data
http//webhome.eng/mdeSW/Project/Explorer.html
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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
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
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
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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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Verifying the Data Host
# /usr/sbin/luxadm display
State
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FRU Tests Available for the A1 or B1 FC Link Segment
Chapter 5 Troubleshooting the Fibre Channel FC Links
CODE EXAMPLE 5-3 switchtest1M Called With Options
# /opt/SUNWstade/Diags/bin/switchtest -v -o dev=2192.168.0.300
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To Isolate the A1 or B1 FC Link
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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Verifying the Data Host
Chapter 5 Troubleshooting the Fibre Channel FC Links
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# /usr/sbin/cfgadm -al
FRU Tests Available for the A2 or B2 FC Link Segment
Verifying the A2 or B2 FC Link
To Isolate the A2 or B2 FC Link
3. Insert the loopback connector in to the switch port
6. Return the path to production
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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
Verifying the Data Host
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# cfgadm -al
FRU Tests Available for the A3 or B3 FC Link Segment
Verifying the Storage Service Processor-Side
vxvmvxdmp disabled path 118/0x1f8 belonging to the dmpnode 231/0xd0
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To Isolate the A3 or B3 FC Link
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Quiescing the I/O on the A3 or B3 Link
# /usr/bin/vxdmpadm disable ctlr=cn
Suspending the I/O on the A3 to 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
Sun StorEdge 6900 Series
Sun StorEdge 3900 Series
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Verifying the Data Host
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Chapter 5 Troubleshooting the Fibre Channel FC Links
# /usr/sbin/luxadm display /dev/rdsk/c26t60020F200000644
State
To Isolate the A4 or B4 FC Link
FRU Tests Available for the A4 or B4 FC Link Segment
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configured
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Using the Host Event Grid
Troubleshooting Host Devices
To Access 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
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To Replace the Alternate Master or Slave Monitoring Host
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Troubleshooting Switches
About the Switches
1. Offline the T ports interswitch links
Zone Modifications
4. Online 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 ”
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
A port on the switch has logged out of the fabric and gone offline
Notification Events
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FIGURE 8-1 shows a typical port failure event
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FIGURE 8-2 Virtualization Engine Alert
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
Run the switchtest to test the switches
FRU Tests Available for the T1 or T2 Data Path FRU
Chapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices
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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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Value Description
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encid12
Run refresh -s to
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with fru stat
fru stat
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enable u
and sysstat
Run logger
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or volstat
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Troubleshooting Virtualization Engine Devices
About the Virtualization Engine
Service Request Numbers SRNs
Virtualization Engine Diagnostics
Service and Diagnostic Codes
Retrieving Service Information
To Display the Log Files and Retrieve SRNs
Error Log Analysis Commands
Chapter 9 Troubleshooting Virtualization Engine Devices
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To Clear the Log
Virtualization Engine LEDs
Example
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Power LED Codes
Interpreting LED Service and Diagnostic Codes
Ethernet Port LEDs
Back Panel Features
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FIGURE 9-2 Virtualization Engine Back Panel
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FC Link Error Status Report
To Check the FC Link Error Status Manually
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Daemon error check the SLIC router
Note -v1 represents the first virtualization engine pair
# /opt/svengine/sduc/svstat -d
CODE EXAMPLE 9-2 luxadm Output for a Host Device
Translating Host-Device Names
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1. Use the format -e command
Displaying the VLUN Serial Number
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3. Type inquiry at the scsi prompt
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To Display Sun StorEdge Traffic Manager MPxIO-Enabled Devices
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
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To Failback the Virtualization Engine
CODE EXAMPLE 9-3 Multipath Drive Summary
CODE EXAMPLE 9-4 Sun StorEdge T3+ array and Disk Pool Name
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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
9. After the problem has been corrected, repeat Step
Manually Clearing and Restoring the SAN Database
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6. If either port 1 or port 2 is offline, check the GBICs and cables
# resetsandb -n vepair # restorevemap -n vepair
To Reset the SAN Database on Both Virtualization Engines
# resetve -n vehostname
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To Reset the SAN Database on a Single Virtualization Engine
Restarting the slicd Daemon
connect Connection refused or Socket error encountered
To Restart the slicd Daemon
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4. To restart the slicd for the v1 virtualization engine, type
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5. Confirm that the slicd daemon is running
a. Open a Telnet session into v1hostname
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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
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
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To Use the Sun StorEdge T3+ Array Failover Driver GUI
5. To further check the affected Sun StorEdge T3+ array
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The Multipath Configurator LUN Properties detail window is displayed
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
2. Check the Sun StorEdge T3+ Array Failover Driver
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FIGURE 11-3 Fault Confirmation Using QLogic SunBlade
3. Check the HBA
4. Isolate the components in the path
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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
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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
SRN Reference
Virtualization Engine References
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A P P E N D I X A
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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Port Communication Numbers
Virtualization Engine Service Codes
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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
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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
Reference and Service Guide
TABLE B-3 Sun StorEdge T3+ Array Error Messages Continued
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StorEdge 3900 and 6900 Series
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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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Abbreviations and Acronyms
FC Fibre Channel
GBIC gigabit interface converter GUI graphical user interface
RSS Remote Storage Services SAN storage area network
POST power on self test
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VLUN virtual LUN
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Index
NUMERICS
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zone modifications
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