Fujitsu PRIMERGY RX2540 M1 Operating Manual page 21

High level of availability and data security
When memory data is accessed, 1-bit errors are identified in the main memory
and automatically corrected with the error correcting code (ECC) method. The
patented memory scrubbing function regularly starts up the EDC mechanism,
ensuring continuous data integrity.
The memory modules used support SDDC technology (Chipkill™), which
further increases the effectiveness of memory error monitoring and correction.
Rank sparing memory technology is also supported, whereby one memory
module is used as a replacement for two other memory modules. If a memory
module fails, the module with the defective memory is deactivated automatically
and the replacement module is activated (provided that it has been configured
accordingly in BIOS; see BIOS Setup). The deactivated memory module is no
longer used and the faulty memory module can be replaced at the next
opportunity. The spare rank module must have identical or larger memory
capacity than all the other ranks on the same channel.
Memory modules can be protected against failure by mirroring (Memory
Mirroring). Memory Mirroring is roughly comparable to RAID level 1 for hard
disk arrays.
I
For further information according to memory module population please
refer to the technical manual of the system board D3289.
ASR&R (Automatic Server Reconfiguration and Restart) restarts the system in
the event of an error and automatically "hides" the defective system
components.
The PDA (Prefailure Detection and Analyzing) technology from Fujitsu analyzes
and monitors all components that are critical for system reliability.
The RAID functionality of the SAS RAID controller increases the availability of
the system.
The hot-plug HDD modules provide additional availability.
iRMC S4 with integrated management LAN connector
The iRMC S4 (integrated Remote Management Controller) is a Baseboard
Management Controller (BMC) with integrated management LAN connector
and expanded functionality that was previously only available with additional
plug-in cards. In this way, the iRMC S4 enables complete control of PRIMERGY
servers, regardless of system status, and thus particularly the control of
PRIMERGY servers that are in the "out-of-band" system status.
RX2540 M1
Operating Manual
Functional overview
21