Fujitsu PRIMERGY TX300 S4 Operating Manual page 14

Features Preface
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 Analysis) technology from Fujitsu Siemens
Computers analyzes and monitors all components that are critical for system
reliability.
Optional RAID functionality of the PCI SAS controller supports RAID levels 0, 1,
10, 5, 50, 6 and RAID 60 and increases the availability of the system.
The hot-plug HDD modules offer increased availability.
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TX300 S4