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SN0054651-00 F 6-1
6 Performing Diagnostics
SANsurfer FC HBA Manager provides end-to-end diagnostics that allow you to
test adapters and the devices to which they are connected. Diagnostic tests
include the following:
The external loopback test, which evaluates the ports (transmit and receive
transceivers) on the adapter and the error rate.
10-bit internal or 1-bit serial internal loopback test (available on 8Gb
adapters, such as the QLE256x).
The read/write buffer test verifies the link between the adapter and its
attached devices.
This section contains the following diagnostic procedures:
“Running Loopback and Read/Write Buffer Diagnostic Tests” on page 6-1
“Viewing Adapter Port Transceiver Details” on page 6-7
Running Loopback and Read/Write Buffer
Diagnostic Tests
SANsurfer FC HBA Manager offers two diagnostic tests: loopback and read/write.
You can access the diagnostic testing facility from the Diagnostics page or by
clicking the Diags button on the toolbar.
Before running a diagnostic test, consider the following:
Because diagnostic testing interrupts normal adapter operations, you should
run these tests when no other activities are required of the adapter.
The adapter state reverts to pre-test conditions at the end of the testing
process.
Diagnostic tests read and write to sensitive areas on the adapter.
Disruption of some diagnostic tests may require a complete update of the
adapter's critical memory areas.