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2TB HDD vs 2x1TB HDDs in RAID 0 massive?

Last response: in Storage
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June 12, 2012 6:31:16 AM

I need to buy an extra of 2TB space for my PC. I will be going with WD 7200 RPM, 64MB cache with either a whole 2TB piece or split in 2x1TB pieces. Which choice would be better for performance?
a c 261 G Storage
June 12, 2012 5:49:21 PM

The raid0 will be faster, but a single drive is considered more reliable.
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June 12, 2012 6:34:24 PM

rolli59 said:
The raid0 will be faster, but a single drive is considered more reliable.

How come is that one drive is more reliable?
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a c 353 G Storage
June 12, 2012 6:45:32 PM

In raid0 you have two drives, if one drive fails you lose ALL data on both drives. hense 2 vs 1, greater chance one will fail

Not all drives are recommended for Raid0, most lower end drives should not be used in raid.

Newegg currently has the Samsung F3 1 TB drive on sale for $80.
Ref http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Check out the reviews on newegg for the drive you are thinking of getting, some of the Newer drives get real Low marks on reliability!!

DON't get Hung up on sata II (3) vesa sata III (6) drives. SATA III (6) is simply a marketing tool as they DO NOT have any better sustained throughput.
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a c 261 G Storage
June 12, 2012 6:48:14 PM

All drives have failure rate, if you have two drives you are twice as likely to have a failure!
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June 12, 2012 8:16:58 PM

How about RPM? I can get a Samsung 2TB 5400 RPM, 32MB cache for a really good deal. Is 7200 or 10000 RPM with 64MB obviously a better choice for performance? Will the difference be that big?
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a c 261 G Storage
June 12, 2012 8:18:37 PM

If it is storage only then not noticeable, program drive it will be noticeable.
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June 12, 2012 9:05:25 PM

rolli59 said:
If it is storage only then not noticeable, program drive it will be noticeable.

Yeah it is gonna be mostly storage for Blu-ray and HD-DVD movies, however, I might use it for audio samples and bank directories for Propellerhead Reason in future.
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a c 261 G Storage
June 12, 2012 9:08:34 PM

5400rpm should work fine for that.
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Best solution

a c 167 G Storage
June 12, 2012 10:57:19 PM

1) Abandon thoughts of raid-0. The performance gains are minimal in actual usage. Only synthetic benchmarks show up well.

2) Yes, there is a higher risk of failure with raid-0, but you should be protecting your cherished files to an external device anyway.

3) For storage, 5400rpm is ok. Cache size, or 3gb/6gb support is also a negligible performance issue.. Make your decision on price per gb and reliability.

4) 1tb drives seem to be a bit more reliable than 2tb, at least according to this report:
http://www.behardware.com/articles/843-6/components-ret...
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June 19, 2012 11:56:13 PM

Best answer selected by Veirtimid.
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