Q-Logic 5202, 5200 manual Stream Guard, Scan Device

Models: 5200 5202

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5 – Managing Ports

 

 

 

 

 

 

Configuring Ports

 

 

 

 

 

 

 

 

 

 

Table 5-9. Port Types

 

 

 

 

State

Description

 

 

 

 

GL_Port

Generic loop port - Self discovers as an F_Port, FL_Port, or an E_Port.

 

 

GL_Port is the default port type. A single device on a public loop will

 

 

attempt to configure as an F_Port first, then if that fails, as an FL_Port.

 

 

1-Gbps/2-Gbps only.

 

Donor

Donor port - Allows buffer credits to be used by another port.

 

 

1-Gbps/2-Gbps only.

 

 

 

 

5.2.4

I/O Stream Guard

The I/O Stream Guard feature suppresses the generation of Registered State Change Notification (RSCN) messages on a port basis. I/O Stream Guard should be enabled only on ports connected to initiator devices. To configure the I/O Stream Guard option using the Port Properties dialog, open the Port menu, and select Port Properties. Click the radio button that corresponds to one of the following options:

„Enable: Suppresses the reception of RSCN messages from other ports for which I/O Stream Guard is enabled.

„Disable: Allows free transmission and reception of RSCN messages.

„Auto: Suppresses the reception of RSCN messages under the following conditions:

„The port is connected to an initiator device with a QLogic HBA.

„The Scan Device option is enabled.

5.2.5

Scan Device

The Device Scan feature queries the connected device during login for FC-4 descriptor information. Disable this parameter only if the scan creates a conflict with the connected device.

59056-02 A

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Page 137
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Q-Logic 5202, 5200 manual Stream Guard, Scan Device