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Why even bother with RAID anymore?

Last response: in Storage
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October 6, 2010 11:39:51 PM

So I built I budget pc for my mother. i540 and a (1)WD6400 blue. This thing boots up way faster than my RAID 0, WD2500JS i7920. Like Noticeably faster boot up. I ran the HDtune read and write times were about the same. On both machines, around 100 mbps. My hard drives are about 3-4 years old, and the specs look pretty much the same, as much as I can tell. Are newer drives somehow faster on boot up? It seems like I really don't need to raid my drives anymore. Both are SATA connects. Single drive is looking pretty sweet.

Poofy

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a b G Storage
October 6, 2010 11:56:59 PM

If you haven't loaded the same software that you run on your mom's new build, it is basically booting windows, with no pre-fetches of all the other software. It'll slow down a bit after you install office, another web browser, CD/DVD burning software, etc.

But your point about RAID is a good one. When the RAID works, it is good. I've been having some trouble with my two-year old RAID 1. One or both HDDs keep randomly falling out, requiring frequent re-builds.
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a c 375 G Storage
October 12, 2010 6:59:11 PM

RAID is meant to keep down time to a minimum, specifically if you lose one drive you will keep running. This said, RAID 0 is not a true RAID. So, as long as down time is an issue, RAID is needed.
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a b G Storage
October 13, 2010 1:22:49 PM

First off, the WD Caviar SE you have is a pretty old one, where as your brother's WD Blue is on a newer gen. This will make a difference.

If you RAID0 2x F3s or even 2x WD Blue's you will notice the difference. Right now, you are comparing across generations hence why you see lower performance.

For example, the older WD Raptors are beaten by the F3s,etc today.

Also realize all RAID does is provide redundancy (RAID1,5,10) and improve throughput. It does very little to improve 4K random read/write performance.
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October 15, 2010 9:18:25 AM

Best answer selected by poofypants.
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