Overheard: Word of the Day

Jul 27 2012   2:06PM GMT

Write through vs write back

Margaret Rouse Margaret Rouse Profile: Margaret Rouse

“Apple’s Xserve RAID allows you to choose which is more important to you–performance or integrity. If you choose write-back cache for performance reasons, the Xserve RAID will default to write-through cache if it detects that it is running on the UPS. Switching to write-through cache assures that nothing will remain in cache in the event of complete battery loss.” — W. Curtis Preston

Today’s WhatIs.com Word of the Day is write through, a storage method in which data is written into the cache and the corresponding main memory location at the same time.

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