EonStor F16F-R/S4031 Installation and Hardware Reference Manual
3.3.2 DIP Switches
Figure 3-2: DIP Switch Configuration Options
The DIP switches located on the upper left of enclosure rear panel allow you
to manually configure the onboard hub, AL-PA IDs of the disk drives within
chassis, or the connection speed of the host or drive loops.
The Onboard Hub
The onboard hub on each channel allows you to create fault-tolerant
connection points from the parallel SFP ports of each Fibre channel, and
without the use of expensive FC switch.
The concerns for using the onboard hub in a dual-controller configuration
are:
1. One drawback of using the onboard hub is that when two ports are
hubbed together, they share a 4Gb/s bandwidth. When the onboard
hub is disabled, each A or B port delivers a 4Gb/s bandwidth.
3-4
Configuration
Options