Fujitsu PRIMERGY RX600 S3 SAS Operating Manual page 12

Features Introduction
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 starts the EDC (Error Detection Code)
mechanism on a regular basis 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 faulty memory is deactivated, and the replacement bank is
activated in its place (provided that is has been configured accordingly 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 protected against failure either by mirroring (Memory
Mirroring, requires two or four boards) or by Memory RAID (requires four
boards). These two processes cannot be used simultaneously.
Hot-plug functionality allows you to replace or add memory boards while the
server is online (see "Hot-plug memory boards" on page 86).
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.
The PCI SAS RAID Controller in its designated PCI slot 4 supports RAID level
0, 1, 10, 5 and 50, and thus increases the system's level of availability and data
security.
Additional security is provided by the hot-pluggable modules, fans, power
supply units, and PCI boards.
12 Operating manual
RX600 S3 SAS