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2U Twin: System Notes
As a 2U Twin configuration, the SuperServer 2028TP-DC0R/DC0TR/DC0FR is a
unique server system. With two system boards incorporated into a single chassis
acting as two separate nodes, there are several points you should keep in mind.
Nodes
Each of the two serverboards act as a separate node in the system. As independent
nodes, each may be powered off and on without affecting the other. In addition, each
node is a hot-swappable unit that may be removed from the rear of the chassis.
The nodes are connected to the server backplane by means of an adapter card.
Note: A guide pin is located between the upper and lower nodes on the inner chassis
wall. This guide pin also acts as a "stop" when a node is fully installed. If too much
force is used when inserting a node this pin may break off. Take care to slowly slide
a node in until you hear the "click" of the locking tab seating itself.
System Power
Dual 1280 Watt power supplies are used to provide the power for both serverboards.
Each serverboard however, can be shut down independently of the other with the
power button on its respective control panel.
Hard Drive Backplane/Drives
As a system, the SuperServer 2028TP-DC0R/DC0TR/DC0FR supports the use of
24 hard drives (SAS and SATA). A single backplane works to apply system-based
control for power and fan speed functions, yet at the same time logically connects a
set of twelve hard drives to each serverboard. Consequently, RAID setup is limited
to a twelve-drive scheme (RAID cannot be spread across all 24 drives). See the
Drive Bay Installation/Removal section in Chapter 6 for the logical hard drive and
node configuration.
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Chapter 1: Introduction
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