Dot Hill Systems SANnet II 200 Service Manual Page 65

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Chapter 4 Connecting Your Array 4-17
labeled FC0, FC1, FC4, and FC5 to indicate channels 0, 1, 4, and 5. Default
configurations do not include an SFP connector in every SFP port. To add or change
SFP connectors, see to “Changing Your SFP Configuration” on page 4-24.
The channels and associated ports for the SANnet II 200 FC, SATA, and SATA SE
arrays are summarized in Table 4-5.
4.8.1 Drive Port Connectivity in a Dual-Controller Array
Drive channels connect to the internal drives in the array and can also connect to
drives in external expansion units. The key difference between the SANnet II 200 FC
and SATA array drive channels is the assignment of two ports for each channel:
The SANnet II 200 FC array has a drive channel assigned to two ports on each
I/O controller module. Each drive channel is a pair of ports on a single I/O
controller module. In a dual-controller configuration, the top controller has two
ports for drive channel 2, and the lower I/O controller module has two ports for
drive channel 3.
The SANnet II 200 SATA array has a drive channel assigned to one port on
each I/O controller module in a dual-controller configuration.
Table 4-5 Number of Ports in SANnet II 200 FC, SATA, and SATA SE Arrays
Item
SANnet II 200 FC
Array
SANnet II 200 SATA
Array
SANnet II 200 SATA SE
Array
Total number of
ports
68 6
Channel 0 1 FC0 host or drive port;
default: host port
2 FC0 dedicated host
ports
3
3. Only one host port connection per channel is allowed when connecting to a fabric switch.
2 FCO dedicated host ports
*
Channel 1 1 FC1 host or drive port;
default: host port
2 FC1 dedicated host
ports
3
2 FC1 dedicated host ports
*
Channel 2
1
1. Channel 2 drive ports connect to drive loop A ports on expansion units.
1 FC2 dedicated drive
port
1 FC2 dedicated drive
port
None
Channel 3
2
2. Channel 3 drive ports connect to drive loop B ports on expansion units.
1 FC3 dedicated drive
port
1 FC3 dedicated drive
port
None
Channel 4 1 FC4 host or drive port;
default: host port
1 FC4 host or drive port;
default: host port
1 FC4 host port
Channel 5 1 FC5 host or drive port;
default: host port
1 FC5 host or drive port;
default: host port
1 FC5 host port
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