Active Memory; Memory Protexion - IBM 8837 - eServer xSeries 336 User Manual

v Automatic restart after a power failure
v Baseboard management controller (BMC) service processor
v Backup basic input/output system (BIOS) switching under the control of the BMC
v Built-in monitoring for fan, power, temperature, voltage, and power-supply
v Cable-presence detection on most connectors
v Chipkill
v Error codes and messages
v Error correcting code (ECC) L2 cache and system memory
v Hot-swap hard disk drives
v Information and light path diagnostics LED panels
v Menu-driven setup, system configuration, and redundant array of independent
v Availability of microcode and diagnostic levels
v Parity checking on the small computer system interface (SCSI) bus and PCI
v Power management: Compliance with Advanced Configuration and Power
v Power-on self-test (POST)
v Predictive Failure Analysis
v Redundant Ethernet capabilities with failover support
v Hot-swap cooling fans with speed-sensing capability
v Redundant hot-swap power supplies and redundant hot-swap fans (some
v Remind button to temporarily turn off the system-error LED
v Remote system problem-determination support
v Standby voltage for system-management features and monitoring
v Startup (boot) from LAN through remote initial program load (RIPL) or dynamic
v System auto-configuring from the configuration menu
v System error logging (POST and BMC)
v System-management monitoring through the Intra-Integrated Circuit (I
v Upgradeable POST, BIOS, diagnostics, BMC microcode, and read-only memory
v Vital product data (VPD) on microprocessors, system board, power supplies,
v Wake on LAN feature capability

Active Memory

Active
memory mirroring and the Memory ProteXion

Memory ProteXion

If a detected error is recoverable, the Memory ProteXion feature corrects the error
and rewrites the data to another memory location on the same DIMM. If there are
not sufficient undamaged memory locations that the data can be rewritten to, the
error is unrecoverable. Other conditions can also cause unrecoverable errors. If a
detected error is unrecoverable, light path diagnostics LEDs are lit to indicate the
failing DIMM.
You do not have to enable memory mirroring to use the Memory ProteXion feature.
6
IBM xSeries 336 Type 8837: User's Guide
redundancy
™
memory protection
disks (RAID) configuration programs
buses
Interface (ACPI)
models)
host configuration protocol/boot protocol (DHCP/BOOTP)
(ROM) resident code, locally or over the LAN
SCSI (hot-swap-drive) backplane, and power backplane
™
Memory is an IBM feature that improves the reliability of memory through
®
(PFA) alerts
™
feature.
2
C) bus