Dell Emulex Family of Adapters - Manual (Page 1309)

OneCommand Manager for VMware vCenter Version 10.2 User Manual P010089-01A Rev. A
9. Diagnostics
LightPulse FC HBA Diagnostic Tests
1309
9. Diagnostics
LightPulse FC HBA Diagnostic Tests
When running port diagnostic tests using OneCommand Manager for VMware
vCenter, do not perform any active management operations on the ESXi host.
Running Loopback Tests
There are three loopback tests that you can run for the FC adapter port:

PCI Loopback – A firmware controlled diagnostic test in which a random data
pattern is routed through the PCI Bus without being sent to an adapter link
port. The returned data is subsequently validated for integrity.

Internal Loopback – A diagnostic test in which a random data pattern is sent
down to an adapter link port, then is immediately returned without actually
going out on the port. The returned data is subsequently validated for integrity.

External Loopback – A diagnostic test in which a random data pattern is sent
down to an adapter link port. The data goes out of the port and immediately
returns via a loopback connector. The returned data is subsequently validated
for integrity.
To run loopback tests:
1. From the Emulex Device Management tree-view, select the FC adapter physical
port on which you want to run the loopback test.
2. Select the Diagnostics tab. In the Loopback Test area of the dialog box, choose the
type of loopback test you want to run and define the loopback test parameters.
Figure 9-1 FC Adapter Diagnostics Tab