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10k raptor vs raid 0 sata2? - Page 2

post #11 of 22
Quote:
Originally Posted by rx7speed View Post
can that small little number at such a small time anyway really make that much of a difference?
Yes. Thats The amount of tike for the HDD to Spin up and acces a file...The less the better.
post #12 of 22
I think a fast access time is good when you want your windows to pup up in an instant, like double clicking winamp and you want it to open in a blink of an eye. It is useful when you're loading small apps.

If you want high bandwidth (as Chozart said) you need the raid0. This would help when loading big apps like photoshop, or huge games like Heroes5, Battlefield, TES Oblivion. This also helps when you copy large chunks of data. The ideal would be to make a raid0 from raptors if you can afford it.
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post #13 of 22
How much bandwidth does one Raptor use ? (in maximum...)
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post #14 of 22
Thread Starter 
pay $240 for 2x 74gb 16mb cashe raptors sata1 (150gb)

pay $155 for 2x 320gb 16mb cashe sata2 (640gb)

if you play games that are bigger than 3gb i would reccomend the Raid0 sata2, considering it transferres up to 6gb between the drives, making Large games and files load very quickly. if all you do is spank off and play CS, get a raptor, loads small files very quick if you know what i mean u premature ejaculator. (just kiding calm down)
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post #15 of 22
Thread Starter 
also, make sure u are running/can run sata2 off ur mobo or whatever. if you dont like long load times buy a better proc or faster ram (or both. raptors $$$)
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post #16 of 22
Quote:
Originally Posted by gravity View Post
How much bandwidth does one Raptor use ? (in maximum...)
88 MB/s sustained transfer
Burst rate is around 127
The bandwidth of SATA is 150. The first generation SATA interface is not a bottleneck for the raptor.
This data is for my ADFD Raptor that has true, native SATA and is faster than its predecessors were. I used Windows' drive speed test to get the data.

I would get a ADFD Raptor because they are faster than any first or second generation SATA drive. All the SATA 2 drives are 7200RPM. RAID 0 isn't really worth it unless you do a lot of video editing and need to save large files faster. RAID 0 doesn't improve data access times, it actually slows them down just a tiny bit because both drives need to seek to the data instead of just one. What it does is double the sustained transfer rates, which is good for saving or loading large files. You won't see much of a difference in normal use unless you have a video editing workstation.
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post #17 of 22
Hi,

D/L HdTach in the link provided http://www.simplisoftware.com/Public...request=HdTach

You can bench your current HDD and compare times to just about every HDD known to mankind.
Raptors kick ..I love being first in a map 99.99% of the time.
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post #18 of 22
Quote:
Originally Posted by erb View Post
The Raptors are all about access time. The hard drive responds much quicker than any other hard drive. To me it is essential because I can't stand that extra wait.

Yes, the throughput is on par with other PMR drives now.

Now the Sata 1.5Gb/3Gb bandwidth... you don't need to worry about that unless you are using 12 of them in a system.

If you want the fastest drive, go with the Raptor. If you wanna be above the rest (like me) go with multiple Raptors in a stripe.
Now you might want to do a little real world testing guys. It's all well and good to go by other poeples work but if you actually try out some stuff you will be surprised how much the controller is a key element. Not all mobos are equal when it comes to RAID and sometimes 4 drives do not outrun 2. It is a real case by case situation so I would not generalize too much.

I have 4 rigs with different SATA RAID set ups, and 2 rigs running SCSI drives--one a single and one in RAID1.

The fastest of them all is a pair of WD SATA 150 150GB 8MB cache drives in RAID0 on an Asus P4P800SE (ICHR5), followed closely by a pair of Seagate Barracudas (8MB cache, 160 GB SATA 3.0) in RAID 0 on an Asus A8NSLI Deluxe NF4 chipsetted mobo. Next Fastest are 4 Raptors in RAID10 on a DFI NF4 chipsetted mobo, after that are a pair of 80GB 8MB SATA 150 WDs ona NF3 Gigabyte board in RAID0. Unfortunataely I can only run the NV boards with the Silicon Image RAID controller as NVRAID is not loading properly during my installations.

The SCSI drives are several notches below that in bandwidth due to the restrictions of the PCI bus. They seem very quick at the desktop--and are a step above an IDE drive, but no match fro SATA RAID0.

I would save yourself some cash and pair up almost any identical SATA drives in RAID0.

I will be benching the Raptors individually and in different RAID sets (ala Chozart) over the Xmas break. I think the restrictions of the controller are holding back the drives. Nonetheless they are still quick--just not as quick as I know they can be.

The chipset seems to be a big factor--and even the better chipsets are not going to be breaking any records. It will take a dedicated controller for that I think.
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post #19 of 22
each of my WD2500 sata 2 drives get about 170-180 mbps in hdtach (not raided)
    
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post #20 of 22
Quote:
Originally Posted by CyberDruid View Post
I will be benching the Raptors individually and in different RAID sets (ala Chozart) over the Xmas break. I think the restrictions of the controller are holding back the drives. Nonetheless they are still quick--just not as quick as I know they can be.

The chipset seems to be a big factor--and even the better chipsets are not going to be breaking any records. It will take a dedicated controller for that I think.
Hey I have 2 74GB Raptors sitting around and wanted to make a Raid 0 array.
I was going to use the NVRAID, but was thinking it might be cool to go with a dedicated hardware RAID controller and bypass the southbridge alltogether. So here are my questions and issues:

1) What striping block size should I use? 64K or 128K?

2) Should I get a dedicated controller or just use NVRAID? If so, which controllers are good? Newegg has RAID controllers ranging from $12 to hunderds of dollars.

Bottom line, I'm more interested in gaming than benchmarking. I play TES Oblivion and BF2142. Will having a RAID 0 make my gaming experience better, even marginally? Or is it just going to make my comp sweeter on paper?

My box's complete stats in my sig and below. TIA to the overclock crew.
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