Areca ARC-1230 Bedienungsanleitung PDF herunterladen (Seite 135)

135

GLOSSARY

through operations are more time consuming.

XOR-Engine

All RAID arrays (with the exception of RAID 0, RAID 1 and RAID 10)

require parity to be calculated and written to the array in conjunction

with data. Typically the parity is a simple XOR on the bytes compris-

ing a stripe. This is a computationally intensive operation that many

modern RAID controllers perform using a dedicated ASIC (instead of

calculating them in ﬁrmware on the main embedded processor’s core).

This dedicated ASIC is often referred to as a XOR-engine.

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Areca ARC-1230 Bedienungsanleitung Seite 135