PRIMERGY TX300 S3, Operating Manual

Page: 9 / 125

TX300 S3
Operating Manual 9
Introduction Features
Power supply
In its basic configuration, the server has a hot-pluggable wide-range power
supply unit that adjusts automatically to any power voltage in the range from
100 V to 240 V. An additional power supply unit can be installed optionally in
order to ensure redundancy of the power supply. If one power supply unit fails,
the second power supply unit in the redundant configuration ensures operation
can continue uninterrupted. The defective power supply unit can be replaced
during operation (for further details see
section “Hot-plug power supply units” on
page 87 ).
Cooling
Each CPU has its own heat sink and a CPU fan.
The server is cooled by four system fans (redundant configuration).
If there are four system fans, each two form a redundant pair. If one fan in one
redundant pair fails, the other fan ensures operation can continue uninterrupted.
A defective system fan can be replaced during operation (for further details see
section “Replacing a Hot-pluggable CPU/System Fan” on page 97 ).
The power supply fans are fitted in the respective power supply unit.
High level of availability and data security
When memory data is accessed, 1-bit errors in the main memory are identified
and automatically corrected with the ECC (Error Correcting Code) method. The
patented memory scrubbing function regularly starts up the EDC mechanism
and thus ensures continuous data integrity.
The memory modules used support SDDC technology (Chipkill™), which also
increases the effectiveness of the monitoring and correction of memory errors.
Memory Mirroring is also supported (requires four or eight memory modules).
Memory Mirroring is roughly comparable to RAID level 1 for hard disk arrays.
Memory modules are protected against failure by mirroring. The basic configu-
ration requires four identical memory modules in two different banks.
ASR&R (Automatic Server Reconfiguration and Restart) restarts the system in
case of an error and automatically “hides” the defective system components.
The PDA (Prefailure Detection and Analyzing) technology from Fujitsu Siemens
Computers analyzes and monitors all components that are critical for system
reliability.