EonStor F16F-R/S4031-6/4 Installation and Hardware Reference Manual
1.1.3.4 Port Assignments
1. Taking CH0 and CH1 as an example, the controller A port and
controller B port definitions only apply in redundant-controller
configurations when their onboard hub is disabled.
Figure 1-9: A Ports and B Ports in a Dual-controller Configuration
A simplified view of onboard hub is shown below. LD is short for “Logical
Drive.”
Figure 1-10: Onboard Hub and Access Routes
If the onboard hub is enabled, the twin ports will be “hubbed” together.
Any of the twin ports provides equal access to both of the RAID
controllers (as shown in the lower half of the above diagram).
2. The A port and B port definitions only apply in dual-controller models:
F16F-R4031-6 and F16F-R4031-4.
3. CH2 and CH3 are the extension of the drive-side dual loop. There are
no controller-specific port definitions with CH2 and CH3 I/O ports.
The dual loop is physically interfaced with dual-ported Fibre drives and
both of the RAID controllers.
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