Supero AS 1021TM-INF+, User Manual

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AS1021TM-T+/1021TM-INF+ User's Manual
1-4 1U Twin: System Notes
As a 1U Twin confi guration, the 1021TM-T+/1021TM-INF+ is a unique server sys-
tem. With two system boards incorporated into a single chassis, there are several
points you should keep in mind.
System Power
A single power supply is 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 own control panel.
Although they share a common power supply, the I
2
C signals used for power supply
monitoring are received by the primary serverboard only. (When viewed from the
front of the chassis, the serverboard on the left is referred to as the primary board
and the serverboard on the right as the secondary.)
SATA Backplane/Drives
As a system, the 1021TM-T+/1021TM-INF+ supports the use of four SATA drives.
The SATA backplane works as a single backplane divided into two sections. This
means that while a single power connector is used and functions such as overheat-
ing apply to both sections together, each pair of SATA drives is logically connected
to its own serverboard. Consequently, RAID setup is limited to a two-drive scheme
(RAID cannot be spread across all four drives).