Chapter 4 Configuring Your Library
Managing Connectivity
Scalar i2000 User’s Guide 131
on the MCB, the Speed area does not appear on the Fibre
Channel Parameters dialog box when configuring the MCB FC
port. The MCB FC port speed is always 1 Gb/sec.
c FC Frame Size is specified by each receiving node and need not
match any other node. The frame size is typically set to 2048.
(You can use another frame size if it is required by a particular
software application.)
d FC ports support Private and Public Fibre Channel attachments.
The default port mode setting for FC ports 1 and 2 is Target
Public, and the default port mode setting for FC ports 3 through
6 is Initiator Public. With Public, the loop is scanned for Fabric
devices and allows the Fabric to have access to all available target
devices that are attached to it. With Private, the local loop is
scanned for devices except for Fabric devices. In Target mode,
the port is set to receive connections from another FC initiator,
such as a host or FC switch. In Initiator mode, the port scans for
storage devices. In Target and Initiator mode, the port operates
in both modes simultaneously.
e The default connection mode for both target and initiator ports is
Loop Preferred. For target ports, other options include Loop and
Point to Point. For initiator ports, other options include Loop
and Loop Preferred. If you change a target port that is set to
Point to Point to initiator mode, the port connection type
automatically changes to Loop Preferred. Consult your service
representative before making changes to this setting.
For reference purposes, the following table shows the default FC I/O
blade port settings as initially set up at installation.
Table 20 FC I/O Blade Port
Settings
Port Loop ID Speed Frame Size Port Mode Connection Option Private/Public
FC-1 Soft Auto 2048 Target Loop preferred Public
FC-2 Soft Auto 2048 Target Loop preferred Public
FC-3 Soft Auto 2048 Initiator Loop preferred Public
FC-4 Soft Auto 2048 Initiator Loop preferred Public
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