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I have a server with DellPerc H750 Storage controller.

I want to use the controller as Pass-thru/Non-RAID but I have the below questions:

A) Is it possible in the future to replace the controller with a HBA one without losing data ?

B) If I used the RAID0 configuration for each disk independently instead of the pass-thru config , would that lead to a better performance or not ?

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To answer the question A, yes. If you just do straight passthrough of the disks with NO RAID, then they are just disks and you could later change it to an HBA and it would be no different.

To answer question B, there are a few concepts being confused here. RAID0 takes many drives and stripes data across them to improve performance. You wouldn't have RAID 0 on a single disk.

Pass through is no RAID at all.

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