HD Tach Results w/ Write-Back Caching Enabled - Is this right??

[Imajica]

Hi all! I just enabled write-back caching on my 2x74GB Raptors in RAID 0 and noticed a very dramatic difference (sorry, n00b to RAID) on HD Tach:

http://i231.photobucket.com/albums/ee229/adeely/HDTach_74GB_RAID0_writecache.jpg

Um, if the burst speed is correct, that is crazy! Is this a result of the 16MB cache on these drives? These are the newer 74GB Raptors.

Thanks for the help/clarification...

:)

[manjina]

Yeah not too sure about the accuracy of the burst speed but your result is normal. I'm getting close to 3GB with 2 Raptor 150 in Matrix RAID 0.

Hope its not against the rules to link to other forums but check the thread here for similar results as you are seeing.

http://www.ocforums.com/showthread.php?t=467848

[Imajica]

Yeah not too sure about the accuracy of the burst speed but your result is normal. I'm getting close to 3GB with 2 Raptor 150 in Matrix RAID 0.

Hope its not against the rules to link to other forums but check the thread here for similar results as you are seeing.

http://www.ocforums.com/showthread.php?t=467848

Thanks manjina - that discussion seems to be right on the money! Looks like this is in fact possible, and the amounts varying on the stripe size, configs, etc; I appreciate the direction.

Now I just need to do something about my slow 36GB Raptor... :rolleyes: