Chapter 4 Connecting Your Fibre Channel Array 4-15
controller, and both ports on a redundant controller, cannot be used. Similarly, if
channel 1 (FC1) is connected to a fabric switch, the second port on that controller
and the two FC1 ports on a redundant controller, cannot be used.
Two hosts can be directly connected to either channel 0 (ports FC0) or channel 1
(ports FC1), but in that configuration, host filters are required if you want to control
host access to storage.
FIGURE 4-10 Host Channels on a Dual-Controller Sun StorEdge 3511 FC Array
4.6.3 Default SFP Placement
Default configurations do not include an SFP connector in every SFP port. You might
want to add or rearrange SFPs, depending on the configuration mode (loop or point-
to-point), number of planned host connections, the necessary number of redundant
connections to hosts, and the number of expansion units needed.
The supported SFP is a single-port, optical SFP transceiver for multimode (short
wave) or single-mode (long wave) use. It is compatible with the Small Form Factor
Pluggable Multi-Sourcing Agreement (MSA, Sep. 2000), and 1x and 2x Fiber
Channel. The optical connector used is the low-profile LC connector.
SFPs are Sun field-replaceable units (FRUs) and can be ordered from Sun
Microsystems. These SFPs have been selected and tested to provide the necessary
reliability and performance. SFPs from other vendors are not supported.
To review various configuration options, see the discussions following “Summary of
Array Configuration” on page 5-6. Refer also to the configuration options presented
in the Sun StorEdge 3000 Family Best Practices Manual for your array.
In dual-controller arrays, SFPs are initially plugged into one of each pair of host and
drive ports. The default port connections are:
■ The upper I/O controller module has SFPs in the FC0, FC2, and FC4 ports.
Host channel 0
Host channel 1
Host channel 4 Host channel 5
An upper port and a lower port are on each host channel.
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