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RAID 0 - SATA vs. SSD

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December 14, 2011 12:54:41 AM

What is the performance comparison:

Raid-5 three 128GB SSD or Raid-0 two 256GB SSD.

And for that matter should I even pick the SSD. This is in a laptop with a serious power user who doesn't want to see a message stating "saving file" or "Transferring files".

More about : raid sata ssd

a b G Storage
December 14, 2011 1:46:17 AM

I would go with a Raid0 or 1 simply because RAID5 has a decent CPU overhead to deal with. They will still see the 'transferring files' message because that is dependent on your external media, and everything from eSATA, gigabit, USB, firewire, etc, is going to be significantly slower than a single SATA drive, much less one in RAID.

Just wondering, but what laptop did you find with 3HDD slots?? Must be a monster!
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a b G Storage
December 14, 2011 1:48:17 AM

correction; RAID5 has a CPU overhead (or at least a much larger one compared to RAID1 or 0) if it is software RAID. If the RAID controller does the math then my answer would be RAID5 all day long, but I find it rather unlikely that a laptop would have a pro grade RAID controller in it.
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December 14, 2011 11:29:59 AM

Seeing this now, the mini card is a sata 3gb, thats a big deal. Raid 0 on sata 6gb would probably crush it in performance. However, I don't know if I want to risk that high of a failure probability. Anyone else use Raid-0 on a laptop?
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