Sun Microsystems 3900 Series, 6900 Series Note

Chapter 3 Troubleshooting the Fibre Channel Links 43

For Internal Use Only

Toverify the failover luxadm display can be used, the failed path will be marked

OFFLINE, as shown in CODEEXAMPLE 3-7.

CODEEXAMPLE 3-7 Failed Path marked OFFLINE

Note – This type of error may also cause the device to show up "unusable" in

cfgadm, as shown in CODEEXAMPLE 3-8.

# luxadm display /dev/rdsk/c26t60020F200000644>

DEVICE PROPERTIES for disk: /dev/rdsk/

c26t60020F20000064433C3352A60003E82Fd0s2

Status(Port A): O.K.

Status(Port B): O.K.

Vendor: SUN

Product ID: T300

WWN(Node): 50020f2000006443

WWN(Port A): 50020f2300006355

WWN(Port B): 50020f2300006443

Revision: 0118

Serial Num: Unsupported

Unformatted capacity: 488642.000 MBytes

Write Cache: Enabled

Read Cache: Enabled

Minimum prefetch: 0x0

Maximum prefetch: 0x0

Device Type: Disk device

Path(s):

/dev/rdsk/c26t60020F20000064433C3352A60003E82Fd0s2

/devices/scsi_vhci/ssd@g60020f20000064433c3352a60003e82f:c,raw

Controller /devices/pci@a,2000/pci@2/SUNW,qlc@5/fp@0,0

Device Address 50020f2300006355,1

Class primary

State OFFLINE

Controller /devices/pci@e,2000/pci@2/SUNW,qlc@5/fp@0,0

Device Address 50020f2300006443,1

Class secondary

State ONLINE

Contents

Main Please Recycle Contents Page Page Page Page Page List of Figures Page Preface How This Book Is Organized Using UNIX Commands Typographic Conventions Shell Prompts AaBbCc123 Related Documentation Page Page Introduction Predictive Failure Analysis Capabilities General Troubleshooting Procedures Troubleshooting Overview Tasks Page Note Page Multipathing Options in the Sun StorEdge 6900 Series Alternatives to Sun StorEdge Traffic Manager To Quiesce the I/O To Unconfigure the c2 Path Page To Suspend the I/O Note Caution To Return the Path to Production To View the VxDisk Properties 1. Type the following: Both of these paths are currently enabled with VxDMP. From the VxDisk output, notice that there are two physical paths to the LUN: 2. Use the luxadm(1M) command to display further information about the underlying LUN. To Quiesce the I/O on the A3/B3 Link To Suspend the I/O on the A3/B3 Link Caution Page Fibre Channel Links Note Fibre Channel Link Diagrams Page Host Side Troubleshooting Storage Service Processor Side Troubleshooting Command Line Test Examples qlctest(1M) switchtest(1M) Storage Automated Diagnostic Environment Event Grid To Customize an Event Report Page Troubleshooting the Fibre Channel Links A1/B1 Fibre Channel (FC) Link Note To Verify the Data Host An error in the A1/B1 FC link can cause a path to go offline in the multipathing software. FRU Tests Available for A1/B1 FC Link Segment Note To Isolate the A1/B1 FC Link A2/B2 Fibre Channel (FC) Link If a problem occurs with the A2/B2 FC link: Page Page Page Note To Verify the A2/B2 FC Link FRU TestsAvailable for A2/B2 FC Link Segment To Isolate the A2/B2 FC Link Page A3/B3 Fibre Channel (FC) Link If a problem occurs with the A3/B3 FC link: Events. Page Chapter 3 Troubleshooting the Fibre Channel Links 37 To Verify the Host Side To Verify the Storage Service Processor FRU Tests Available for the A3/B3 FC Link Segment To Isolate the A3/B3 FC Link 40 Sun StorEdge 3900 and 6900 Series Troubleshooting Guide March 2002 A4/B4 Fibre Channel (FC) Link If a problem occurs with the A4/B4 FC link: and FIGURE3-10 are examples of A4/B4 Link Notification Events. Chapter 3 Troubleshooting the Fibre Channel Links 41 To Verify the Data Host Sun StorEdge 3900 Series Sun StorEdge 6900 Series Note Chapter 3 Troubleshooting the Fibre Channel Links 43 Note cfgadm, as shown in CODEEXAMPLE 3-8. FRU tests available for the A4/B4 FC Link Segment To Isolate the A4/B4 FC Link Page Page Configuration Settings VerifyingConfiguration Settings To Verify Configuration Settings Note 10. If anything is marked FAIL, check the /var/adm/log/SEcfglog file for the details of the failure. To Clear the Lock File Note Page Page Troubleshooting Host Devices Host Event Grid Using the Host Event Grid Page Page Page Replacing the Master, Alternate Master, and Slave Monitoring Host Note To Replace the Master Host To Replace the Alternate Master or Slave Monitoring Host Page Page Troubleshooting Sun StorEdge FC Switch-8 and Switch-16 Devices Sun StorEdge Network FC Switch-8 and Switch-16 Switch Description SUNWsecfg To Diagnose and Troubleshoot Switch Hardware Switch Event Grid Using the Switch Event Grid Page Page Page Page Page Replacing the Master Midplane To Replace the Master Midplane Troubleshooting Virtualization Engine Devices Virtualization Engine Description Virtualization Engine Diagnostics Service Request Numbers Service and Diagnostic Codes To Retrieve Service Information CLI Interface To Display Log Files and Retrieve SRNs Example To Clear the Log Virtualization Engine LEDs Power LED Codes Interpreting LED Service and Diagnostic Codes Back Panel Features Ethernet Port LEDs Fibre Channel Link Error Status Report To Check Fibre Channel Link Error Status Manually Note Note Note /opt/svengine/sduc/svstat -d v1 command to work. Translating Host Device Names To Display the VLUN Serial Number Devices That Are Not Sun StorEdge TrafficManager-Enabled Sun StorEdge TrafficManager-Enabled Devices Chapter 7 Troubleshooting Virtualization Engine Devices 81 To View the Virtualization Engine Map old information. Note #showvemap -n v1 -f Page To Failback the Virtualization Engine To Replace a Failed Virtualization Engine Page To Manually Clear the SAN Database Caution To Reset the SAN Database on Both Virtualization Engines To Reset the SAN Database on a Single Virtualization Engine Stopping and Restarting the SLIC Daemon To Restart the SLIC Daemon Page Sun StorEdge 6900 Series Multipathing Example One Sun StorEdge T3+ array partner pair with 1 500GB RAID 5 LUN per brick (2 LUNs total) Page Page Page Page Page Virtualization Engine Event Grid Using the Virtualization Engine Event Grid Page Page Page Troubleshooting the Sun StorEdge T3+ Array Devices Explorer Data Collection Utility To Install Explorer Data Collection Utility on the Storage Service Processor Example Note Troubleshooting the T1/T2 Data Path Notes T1/T2 Notification Events The example below shows a typical port failure event 104 Sun StorEdge 3900 and 6900 Series Troubleshooting Guide March 2002 ...continued on next page... Chapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices 105 ...continued from previous page... Sun StorEdge T3+ Array Storage Service Processor Verification Chapter 8 Troubleshooting the Sun StorEdge T3+ Array Devices 107 T1/T2 FRU Tests Available Environment Notes T1/T2 Isolation Procedures Sun StorEdge T3+ Array Event Grid Using the Sun StorEdge T3+ Array Event Grid The following table lists all of the events for the Sun StorEdge T3+ array. Page Page Page Page Page Page Page Page Page Page Page Replacing the Master Midplane To Replace the Master Midplane Troubleshooting Ethernet Hubs Note Page A Virtualization Engine References This Appendix contains the following Tables: engine. Page Page Page Page Page B SUNWsecfg Error Messages . Page Page Page Page Page Page Page Page setupswitch Exit Values /var/adm/log/SEcfglog log file. Page Index A C D E H I L M N V W