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Fibre Channel Ports Are Link Down on the VTL Console when the VTL Server Is Directly Connected to the AIX-based Backup Server

Publication Date:  2015-08-03 Views:  101 Downloads:  0
Issue Description
Products and versions:

VTL3500 V100R002
VTL6000 V100R003
VTL6900 V100R005

The symptom is:

The VTL server is directly connected to an AIX-based backup server. In the navigation tree of the VTL Console, choose Physical Resources > Storage HBAs. Click the Qlogic host bus adapter (HBA) connected to the AIX-based backup server. In the function pane, click the General tab. The Port Status is found as being Link Down.
Handling Process
Possible cause 1: The optical fiber connected to the VTL server or the AIX-based backup server is not firmly inserted.

Reinsert the two ends of the optical fiber.

Possible cause 2: The optical fiber between the VTL server and the AIX-based backup server is damaged.

Replace the optical fiber.

Possible cause 3: The VTL server and the AIX-based backup server have different Fibre Channel port modes.

   1.  Log in to the VTL server using a Secure Shell (SSH) tool.

   2.  On the command-line interface (CLI), run the vi /usr/local/vtl/etc/fshba.conf command to view the value of connection_option-hba.

        The value 1 indicates the point-to-point mode and 0 the arbitrated loop mode.

   3.  You can press i to enter the edit mode and reset connection_option-hba. Then restart the VTL server for the new value to take effect.

Possible cause 4: The HBA on the VTL server is incompatible with that on the AIX-based backup server.

Use a Fibre Channel switch for the connection between the VTL server and the AIX-based backup server.
Root Cause
Possible cause 1: The optical fiber connected to the VTL server or the AIX-based backup server is not firmly inserted.

Possible cause 2: The optical fiber between the VTL server and the AIX-based backup server is damaged.

Possible cause 3: The VTL server and the AIX-based backup server have different Fibre Channel port modes.

Possible cause 4: The HBA on the VTL server is incompatible with that on the AIX-based backup server.

END

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