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5 – Managing Ports
Viewing and Configuring Ports
59235-02 A
5-17
L
5.3.6
I/O Stream Guard
The I/O Stream Guard feature suppresses the 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
. Select the option 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
— a
llows free transmission and reception of RSCN messages.
Auto
—
suppresses the reception of RSCN messages when the port is
connected to an initiator device with a QLogic HBA. The default is Auto.
Refer to
”Device Scan” on page 5-17
.
5.3.7
Device Scan
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.