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For examples of redundant, partially-redundant, and non-redundant host and drive
loop configurations, see “Fibre channel loop configurations” on page 33.
Connecting secondary interface cables
Use the Ethernet interface ports on the back of the storage server to connect the
controllers for direct management of the storage subsystems (see 32). Connect a
pair of Ethernet cables from the storage-management station to the Ethernet ports
for Controller A (located on the left) and Controller B (located on the right) on the
back of the storage server. Figure 45 shows the location of the ports.
Note: The serial interface ports are intended to be used by service technicians to
perform diagnostic operations on the storage server. Incorrect use of the
serial port can result in loss of data access and, in some cases, in loss of
data.
Power cabling
The storage server uses two standard power cords. You can connect the power
cords to a primary power unit inside the rack, such as a properly grounded ac
distribution unit, or to an external source, such as a properly grounded electrical
outlet.
If you have not already done so, attach the power cords by using Figure 46 on
page 51 for the location of the component parts.
Controller A
Host A: Host Adapter 1
(or from managed hub
or switch) Host A: Host Adapter 2
(or from managed hub
or switch)
Controller B
f10ug029
Figure 44. Location of host cables
Controller A
Ethernet port Controller A
Serial port Controller B
Serial port Controller B
Ethernet port
f10ug030
Figure 45. Ethernet and serial port locations
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IBM TotalStorage FAStT100 Storage Server: Installation, User’s, and Maintenance Guide