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PRINTER NOTE: Page size 9” x 9.25”. Align this page to top, right hand corner. Back box bleeds off
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Located in the tower-based systems’ top bay or the
rack-mount systems’ far left bay are two card slots. The
Ultra S2S RAID Controller (optional) and the SAF-TE
card are installed in these two slots. The Ultra S2S
RAID Controller will be installed in the upper most (or
furthest left) slot. The SAF-TE card is installed in the
next slot down or to the right.
Hot Swappable Cooling Fans
The cooling system consists of two high-performance
fans fitted to the rear panel. These fans draw air from
a high pressure plenum, across the drives and
electronics of the system and exhaust out through the
rear door panel.
The fan speed is thermally controlled to provide
reduced operating noise levels. In the event of a fan
failure or cabinet temperatures approaching the
threshold limit, the remaining fan will switch to
maximum operating speed.
Cabinet temperature is measured within the drive bay
area between drive slots 2 and 3, and slots 7 and 8. The
fan’s speed and alarms are keyed to the higher of the
two temperatures. The SAF-TE processor monitors the
Access the Operator Control Panel to determine the
cause and failed component. Select “Hardware Menu”
from the Main Menu and choose “Component Status”,
see Operator Control Panel described later in this
guide. The fans are identified on the rear door panel
using a placard for “FAN 1” and “FAN 2.” For more
information on changing a cooling fan, see Replacing
the Cooling Fans described later in this guide.
Hot Swappable Power Supplies
Up to three 150 watt hot swappable power supplies are
incorporated as part of a fault-tolerant design (N+1
power system). Each power supply has current share
circuitry which balances the load between installed
power supplies. In the event of a power supply failure,
the load is transferred to the remaining power supplies
without interruption to the DEU normal operation.