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I Just Built a Raid 0 system, and I was wondering if defragging the drive is a good idea? I mean, considering the point of a RAID system is to have fragmented files to speed up access time, would defragging the drive kill the whole purpose of a RAID drive?
The whole point of using RAID 0 was to increase my transfer rates. I don't want to defrag them and find out it moved all the data onto one HD and the other is not being used at all.

i use ssd for windows
and 2 hdd for raid 0 (for everything else)
 
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The fragmentation you're concerned about happens at filesystem level. Raid 0 happens at a lower level and the two are quite separate. It is fine to run defrag.

Gaming system: R7 7800X3D, Asus ROG Strix B650E-F Gaming Wifi, Thermalright Phantom Spirit 120 SE ARGB, Corsair Vengeance 2x 32GB 6000C30, MSI Ventus 3x OC RTX 5070 Ti, MSI MPG A850G, Fractal Design North, Samsung 990 Pro 2TB, Alienware AW3225QF (32" 240 Hz OLED)
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