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mac57

 
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Member Since: Apr 29, 2006
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Mac Specs: iMac 27" 3.4 GHz, 256 GB SSD, 2 TB HDD, 8 GB RAM

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I looked up WD's latest, the Velociraptor. It's sustained transfer rate is 120 MB/s. That is faster than the Seagate I put in, but not by as large a margin as I expected.

Confessing my total ignorance of the performance benefits of RAID, if I could RAID two disks that had a sustained transfer speed of 100 MB/s, would I achieve an overall sustained transfer speed of 200 MB/s? If so, would a RAID'd Mac boot twice as fast as a non raided Mac? ...launch apps twice as fast?

Sorry for the stupid questions but I have always thought of RAID principally in terms of reliability, not performance. Thanks.

My Macs: iMac 27" 3.4 GHz, Mac Pro 3.2 GHz, PowerMac G5 Quad 2.5 GHz, G4 Cube with 1.2 GHz Upgrade
My iStuff: 64GB iPhone 5, 64GB iPad4, 30GB iPod Video, 16GB iPod Touch
My OS': Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Tiger, Mac OS 9.2.2, openSUSE 10.3
I was on the Mac-Forums honor roll for September 2007
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