scrub

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The system also supports up to 24GB of ECC DDR200/DDR226 memory, featuring ChipKill(TM) and Memory scrubbing technology for more accurate data delivery.
All capacities support IBM's Chipkill technology, redundant spare memory chips with bit steering, memory scrubbing and thresholding to enhance data retention and overall system reliability.
The GC-HE SystemI/O incorporates ServerWorks' advanced memory resiliency features, including on-line spare memory in which a stand-by on-board DIMM is called into operation if one of the on-line memory modules fails, as well as memory scrubbing that detects errors before they can impact system operation, memory mirroring for extra robust operation and hot plug memory that allows memory upgrades while the system continues in operation.