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SUPERSERVER 2027TR-HTQRF/HTFRF/HTRF USER'S MANUAL
1-5
2U Twin
2
As a 2U Twin
confi guration, the 2027TR-HTQRF/HTFRF/HTRF is a unique server
system. With four system boards incorporated into a single chassis acting as four
separate nodes, there are several points you should keep in mind.
Nodes
Each of the four serverboards act as a separate node in the system. As independant
nodes, each may be powered off and on without affecting the others. 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 1620 Watt power supply is used to provide the power for all four serverboards.
Each serverboard however, can be shut down independently of the other with the
power button on its own control panel.
SATA Backplane/Drives
As a system, the 2027TR-HTQRF/HTFRF/HTRF supports the use of twenty-four
SATA drives (six per serverboard). A single SATA backplane works to apply system-
based control for power and fan speed functions, yet at the same time logically
connects a set of six SATA drives to each serverboard. Consequently, RAID setup
is limited to a six-drive scheme (RAID cannot be spread across all twenty-four
drives). See the Drive Bay Installation/Removal section in Chapter 6 for the logical
hard drive and node confi guration.
2
: System Notes
1-8
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