Exporting videos to same fast HDD vs exporting to different but slower HDD

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A Furry Peanut

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Jan 11, 2016
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So I have an external 2x2tb raid-0 5400rpm hard drive that I use to edit videos from, and I recently learned that it is faster to export to a different hard drive. Although with limited budget I can not purchase a new hard drive. So my question is would it be faster to just continue exporting my videos to my external raid-0 hard drive, or partition my current internal 4tb 5400rpm hard drive into 2x2tb (this drive is used as my regular storage like pictures, music etc. and I would like to keep it separate from my media work) and use one of them to export my videos to?
 
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The reason exporting to a separate drive can be faster is that while the first drive is performing its read operations, at the same time the second drive can be performing its write operations. If you were reading from and writing to the same drive the read/write heads could have to alternate, depending on the physical locations of the data. I say "can be faster" because there are some other factors, such as the connection interface between the drives. A saturated USB 3 channel (lots of devices) or even just a cheap controller could reduce speeds below single-drive levels.

Anyway, for the rest of your question if you partition your internal drive, it won't make any difference. There's no way to dictate what physical portions of the...
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TMTOWTSAC

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The reason exporting to a separate drive can be faster is that while the first drive is performing its read operations, at the same time the second drive can be performing its write operations. If you were reading from and writing to the same drive the read/write heads could have to alternate, depending on the physical locations of the data. I say "can be faster" because there are some other factors, such as the connection interface between the drives. A saturated USB 3 channel (lots of devices) or even just a cheap controller could reduce speeds below single-drive levels.

Anyway, for the rest of your question if you partition your internal drive, it won't make any difference. There's no way to dictate what physical portions of the drive get assigned to each logical partition. So the data could still wind up being read and then written back by the same read/write head, which offers no speed advantage.

On a separate note, I really hope you also maintain current backups of everything important to you. 8 TB is a lot of data, and Raid 0 offers no backup protection. Backups can seem too expensive, until you have a drive failure and see what data recovery services cost.
 
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A Furry Peanut

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Haha don't worry I already have a back up solution :)

 
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