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why raid 0 speed fast than single x2 speeds?


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If this is on an Intel chipset board, using the Intel RAID driver, and the Write-back cache option is enabled in the Intel RAID GUI, any SSD I've ever tried in RAID 0 has much better write performance in bench marks.

 

When using ATTO, which is usually the best case situation test, getting more than twice the write speed of doubling the write speed spec of a single drive does not surprise me.

 

Man-pushing-BMW, (aren't you tired yet?) The Write-back Cache option of the Intel RAID driver uses the RAM memory of the PC as a buffer, so while the SSD is writing data, the new data coming in is put in the RAM memory, and then sent to the SSD when it is ready.

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