User`s guide

10 – Performing Diagnostics
Preparing for Diagnostic Testing
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10.1.2.1
Modifying the HBA Settings Connection Options Setting
Before running the loopback test, the HBA port settings Connection Options
setting must be set appropriately. See section 11.1.1 for information about viewing
and modifying the setting. Do the following:
1. Write down the current setting.
2. Do one of the following:
❑ If the HBA port is not connected to the fabric through a point-to-point
connection (F-port) and is not connected to a switch, change the setting to
0—Loop Only, if not currently set to this option.
❑ If the HBA port is connected to the fabric through a point-to-point connection
(F-port) and is connected to a switch, make sure the setting is
1—Point-to-Point Only.
3. After completing the loopback test, change the Connection Options setting
back to its original value.
10.1.2.2
Installing a Loopback Connector
Before running the loopback test, you must install a loopback connector on the HBA
port. Note the following about the loopback connector:
■ The loopback connector must be appropriate for the type of Fibre Channel HBA
connector.
■ Be sure to select the appropriate HBA connector for testing. Each HBA connector
displays in the SANsurfer FC HBA Manager main window HBA tree as an HBA
port.
Perform the following steps to install a loopback connector. Installing the connector
stops normal HBA operations.
1. Disconnect the cable from the appropriate HBA connector.
2. Install the loopback connector on the HBA connector.