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.
PRINTER NOTE: Page size 9” x 9.25”. Align this page to top, right hand corner. Back box bleeds off top and right edge. Left side of page extends to 9.25 inches.
