Sun Microsystems 6900, 3900 manual Sun Proprietary/Confidential Internal Use Only

Troubleshooting the A1 or B1 FC Link		42
Verifying the Data Host	45
FRU Tests Available for the A1 or B1 FC Link Segment				46
▼ To Isolate the A1 or B1 FC Link		48
Troubleshooting the A2 or B2 FC Link		49
Verifying the Data Host	51
Verifying the A2 or B2 FC Link		52
FRU Tests Available for the A2 or B2 FC Link Segment				52
▼ To Isolate the A2 or B2 FC Link		52
Troubleshooting the A3 or B3 FC Link		54
Verifying the Data Host	56
Verifying the Storage Service Processor-Side			57
FRU Tests Available for the A3 or B3 FC Link Segment				57
▼ To Isolate the A3 or B3 FC Link		58
Quiescing the I/O on the A3 or B3 Link			59
Suspending the I/O on the A3 to B3 Link			59
Troubleshooting the A4 or B4 FC Link		60
Verifying the Data Host	62
Sun StorEdge 3900 Series		62
Sun StorEdge 6900 Series		62
FRU Tests Available for the A4 or B4 FC Link Segment				64
▼ To Isolate the A4 or B4 FC Link		64
6. Troubleshooting Host Devices	67
Using the Host Event Grid 67
▼ To Access the Host Event Grid		67

Replacing the Master, Alternate Master, and Slave Monitoring Host 71

▼ To Replace the Master Host 71

Contents V

Sun Proprietary/Confidential: Internal Use Only