Computing.Net - raid @ 3GB/s

Subject: raid @ 3GB/s

Original Message

Name: nuzzy
Date: April 22, 2008 at 13:49:23 Pacific
Subject: raid @ 3GB/s
OS: any
CPU/Ram: any
Model/Manufacturer: any

Comment:

I have seen raid specs at 3GB/s, but when I look at hard drive specs and raid reviews in magazines they only rate at around 150MB/sec, so how is it possible to get this amount of speed? What kind of raid controller card and hard drives would be needed? and what level of raid? thanks!

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Response Number 1

Name: aegis
Date: April 22, 2008 at 14:17:21 Pacific
Subject: raid @ 3GB/s

Reply: (edit)

The 3Gb (300MB) speed is the maximum 'theoretical' speed that the SATA 'interface' can run at. There are no hard drives that run anywhere close to that speed. The drives can't even reach 150MBs throughput speed at this stage of their development.

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Response Number 2

Name: OtheHill
Date: April 22, 2008 at 14:43:32 Pacific
Subject: raid @ 3GB/s

Reply: (edit)

3GB is actually 3072MB. Other than that aegis's explanation is correct.

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Response Number 3

Name: aegis
Date: April 22, 2008 at 15:12:03 Pacific
Subject: raid @ 3GB/s

Reply: (edit)

Othehill, how did you come up with that number? I must be having one of my many senior stupid days, cause I can't figure it out. :-)

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Response Number 4

Name: OtheHill
Date: April 22, 2008 at 15:21:24 Pacific
Subject: raid @ 3GB/s

Reply: (edit)

1024KB = 1MB, 1024MB = 1GB, 1024GB = 1TB.
3GB = 3x1024MB = 3072MB.

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Response Number 5

Name: aegis
Date: April 22, 2008 at 16:01:17 Pacific
Subject: raid @ 3GB/s

Reply: (edit)

Oh! In windows speak, thanks Othehill, I see. That number looked kinda odd even in window's numbers and I didn't bother to calculate it.
I guess I should have said 3Gb equals .3GB, but even that isn't really correct. :-)

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Response Number 6

Name: nuzzy
Date: April 23, 2008 at 11:07:59 Pacific
Subject: raid @ 3GB/s

Reply: (edit)

thanks, I appreciate the responses! I've put up another follow up question if you're interested.

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