Need Suggestion on Drive For My RAID Setup

[pEEpiNgtoM]

Im going to be doing a RAID-0 setup, basicly what im wondering is should i use

2 SATA 3.0/Gb/s 7200 RPM Drives

or

2 SATA 1.5/Gb/s 10,000 RPM Drives


Just wondering, and will the performance gap between which ever one would be better be significant enough to spend the extra doe if it is in fact the more expensive of the 2

Basicly what im stuck on is one set is SATA II wither lower RPM and the other is SATA I with Higher RPM

 

[pEEpiNgtoM]

Anyone have an idea?

 

[darkangelism]

The 10,000 rpm drives will be faster.

 

[pEEpiNgtoM]

by a significant amount since they are only SATA I vs the SATA II 7200's?


if yes then ill probably go with the 10,000 SATA if not by alot ill go with the SATA II 7200's

i kinda figured the 10,000 would be faster, but i just didnt know by how much since im comparing it to a SATA II 7200 and not a SATA I 7200


thanks for the input man

 

[Jaak]

depends of Your RAID controler and configuration, specially in Raid5. If You have cheap controller and You plan to go to RAID5, then actual bottleneck is RAID write speed. Parity calculation is done by CPU and its really slow. I experianced it with RocketRaid 1640 and 1810a moddel. Last has parity calculation in the hardware and write speed is 5 times faster

Read more http://jacksgadgets.blogspot.com/2007/01/minor-upgrade.html

 

[SomeJoe7777]

The rotation speed increase from 7200 RPM to 10,000 RPM will make some difference, especially in access time. Transfer rate gets a little bit of boost, but not a lot.

SATA-150 or SATA-300 interfaces will make virtually no difference in the overall speed.

Looking at the difference in SATA-150 and SATA-300 is like this:

Imagine a 2" fire hose. It can carry up to 150 gallons/minute. A 3" fire hose can carry up to 300 gallons/minute. But if the fire pump can only pump water at 70 gallons/minute, does it matter which fire hose you use?

Since the hard drives can sustain data transfer rates of only 70 MB/sec, the interface speed is pretty much irrelevant as long as it's higher than the hard drive's capability.

 

[pEEpiNgtoM]

so in my situation in doing a RAID 0 setup, would you recommend 2 really good 7200RPM drives or would the jump to 10,000 be worth the dollars in this particular situation?

 

[SomeJoe7777]

That depends on what your goal is. In your earlier posts you seem to say that speed is the overriding factor. If that's the case, like I and others have said, the 10,000 RPM drives are faster.

If you're turned off by the smaller capacity and higher cost of the 10,000 RPM drives, then 7200 RPM drives will give you more capacity for less cost at the expense of some speed.

We can't answer for you whether the additional speed is worth the additional cost. That's totally dependent on how important speed and cost are to you, not to us. Some gamers would gladly pay $300 more to enter a level 2 seconds faster than everyone else. Other gamers don't consider that worth it. Other people need capacity for their music & pictures. Others want to be able to re-author a DVD in 3 minutes instead of 6. Others want fault tolerance.

If you want speed, a single 10,000 RPM drive is faster than a single 7200 RPM drive. And 2x 10,000 RPM drives in a RAID 0 is faster than 2x 7200 RPM drives in a RAID 0. A single 10,000 RPM drive is faster in some tasks and slower in other tasks than 2x 7200 RPM drives in a RAID 0.