Fujitsu Primergy RX600 S2, Руководство по эксплуатации

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Features Introduction
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Ventilation
The server is cooled by means of four hot-plug system fans (redundant config-
uration). Two fans each are contained in one fan unit. Fan control is performed
via temperature sensors. If a sensor fails or is removed, the relevant system
fans run at maximum speed to ensure optimum hardware protection. If the
server cover is removed, all system fans are operated at maximum speed.
In case of a defective fan, uninterrupted operation is ensured. A defective fan
unit can be replaced online (for further details see section “Replacing a Hot-plug
System Fan Unit” on page 73).
High Level of Availability and Reliability
When memory data is accessed, 1-bit errors in the main memory are recog-
nized and automatically corrected with the ECC (Error Correcting Code)
method. The patented memory scrubbing function regularly starts up the EDC
(Error Detection Code) mechanism and thus ensures continuous data integrity.
The memory modules used support Chipkill technology.
Support is likewise provided for hot-spare memory technology, in which a
memory bank is used like a replacement bank. If a memory module fails, the
bank with the defective memory is automatically deactivated and the
replacement bank is activated in its place (assuming it has been configured
appropriately in the BIOS). The deactivated memory bank is no longer used and
the faulty memory module can be replaced at the next opportunity. In order to
be able to use the hot-spare memory function, all occupied memory banks must
have an identical memory configuration.
Memory boards can be secured against failure either by memory mirroring (two
or four boards required) or by memory RAID (four boards required). Both
methods cannot be used simultaneously.
With the hot-plug function, memory boards may be replaced or added while the
system is up and running (see “Hot-plug Memory Boards” on page 80).
ASR&R (Automatic Server Reconfiguration and Restart) restarts the system in
the case of an error and automatically "hides" the defective system compo-
nents.
The PDA (Prefailure Detection and Analyzing) technology from Fujitsu Siemens
Computers analyzes and monitors all components important for system
reliability.