Sun Microsystems StorEdge, Troubleshooting Manual

Page: 75 / 168

Chapter 4 Troubleshooting Example 57
Test the FRUs
The following FRUs exist in the host-to-switch link:
■
Switch or switch port
■
Switch-side SFP
■
Cable
■
Host HBA
To isolate the cause, perform one of the following options with the Storage
Automated Diagnostics Environment:
■
The
switchtest
in combination with the
qlctest
■
The
linktest
Storage Automated Diagnostics Environment
switchtest
and
qlctest
Tests
1. Remove one end of the cable of the HBA-switch link
2. Insert loopback plug into the HBA
3. Run the
qlctest
■
If the test fails, replace HBA and re-run the
qlctest
■
If the test passes, continue below
4. Insert loopback plug into Switch SFP/Port
5. Run the
switchtest
■
If the test passes, most likely problem is cable
■
If the test fails, continue below
6. Replace SFP and re-run the
switchtest
■
If the test passes, the most likely problem was SFP connector
■
If the test fails, the most likely problem is the switch port or the entire switch