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post #11 of 25
Quote:
Originally Posted by Skipper
Today the fourth disc arrived.
What was your windows load time? beep to no hour glass on the desktop time?
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post #12 of 25
Thread Starter 
I have skipped that test, since it is highly individual. There is only a very small chance your machine would be configured like mine. I have lots of programs that start up right after boot, and some of my drivers also take a bit of time. If I gave you a time for it, I would be misleading you.

I can however tell you, that it is as I stated in my previous post. Way faster than my Hitachi Deskstar 120Gb.
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post #13 of 25
Quote:
Originally Posted by Skipper
My bad, link corrected.

No I didn't mean the I-ram article, though it is interesting. Not as fast as you would think though. Perhaps you could Raid-0 two of them:-)

It is a comparisontest of different raid setups like 3xraid-0 vs raptors etc. It explains a lot about stripsize too, and the importance of these. How much to gain if putting in a third raid-0 disc, compared to just two.

Lots of good info!

Basicly it also concludes, that the raptors are very good drives, that just happened to get the s*** kicked out of them by a cheaper, younger, better and bigger system. Only point the raptors are ahead on, is seektime. And honestly ... on a defragmented system, the difference of 8.6 ms is not that big a deal. I would perfer the way higher transferrates any day.

The thing that hits me with this article is, that for the price of ONE (1) Raptor 74gb, you could have FOUR (4) 80gb Dmax10's, or other small discs. Wich acording to the test, would be somewhat the meanest setup I can imagine. Well 4 Raptors would be nicer, but at that price, that's not really an option for me.

I can let you know how it comes to work. I just got two Dmax10's as raid-0, and I'm ordering 2 more. It's so cheap I got to try it :-)
you will like your raaid setup . I too have 2x 300 gig Maxtor SATA in raid 0 and the drives load stuff up really fast. even testing it against even a 160 gig HD IDE ata133 i have noticed a big difrence in even the load time for windows and the apps opening at startup.

I would not trade anything for the HD setup that i have atm.... well for 4 smaller HD for raid but thatws about it
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post #14 of 25
Thread Starter 
2xRaid-0 testing finished.

Here are the results:

SiSoftware Sandra

Benchmark Results
Drive Index : 104MB/s

Performance Test Status
Run ID : 2x80Gb Maxtor DiamondMax10, on 12. april 2006 at 23:12:04

Benchmark Breakdown
Buffered Read : 177 MB/s
Sequential Read : 133 MB/s
Random Read : 58 MB/s
Buffered Write : 298 MB/s
Sequential Write : 133 MB/s
Random Write : 74 MB/s
Average Access Time : 10 ms

HD Tach:
Burst: 357Mb/s
Average Read: 123.9Mb/s
Random Access Time: 13.8ms

ATTO:
Sustained Write transfer rate: 127.826Mb/s
Sustained Read transfer rate: 129.366Mb/s

When testing, it became clear, that these two disc's are very fast in Raid-0. The sustained transfer rates are virtually identical to those of a pair of 74Gb Raptors, which is confirmed in HD Tach graphs. Like in the other tests, the Raptors have a faster seek time, and the D'max disc's burst the double amount of data.

The impression of this setup is, that this is fast enough to eliminate most talk about hard drive bottlenecks. It is significantly faster than the one disk setup, and you really get the feeling, that something has seriously changed. Compared to the three disk setup, it's not that far behind. on the three disk setup, I felt that in some cases the array had more to offer, than the system was able to utilize. Generally things were faster, and things generally seemed to go smoother. The 3xRaid-0 is so far my favorite, and the cost of the third disk was not wasted, considering what it gave extra. But to make it very clear. This 2xRaid-0 system is really fast. As said, we are talking the same speeds here, as a pair of 74Gb Raptors in Raid-0.

4xRaid-0 test coming up next.
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post #15 of 25
Thread Starter 
4xRaid-0 testing finished.

SiSoftware Sandra

Benchmark Results
Drive Index : 188MB/s

Performance Test Status
Run ID : 4x80Gb Maxtor DiamondMax10, on 13. april 2006 at 02:51:47

Benchmark Breakdown
Buffered Read : 213 MB/s
Sequential Read : 257 MB/s
Random Read : 75 MB/s
Buffered Write : 537 MB/s
Sequential Write : 255 MB/s
Random Write : 121 MB/s
Average Access Time : 10 ms

HD Tach:
Burst: 477.7Mb/s
Average Read: 237.5Mb/s
Random Access Time: 13.9ms

ATTO:
Sustained Write transfer rate: 241.458Mb/s
Sustained Read transfer rate: 225.927Mb/s

This array has tested blistering fast. However it has not fully added the full amount of extra potential the fourth disk poses. It seems, that either the controller or the interface, is just about maxed out. Data bursts in the vicinity of 500Mb/s is apparently the limit on this motherboard.

Testing is one thing, real life another. The benchmarks boast really high numbers, but it is hard to find any applications that would greatly benefit from this. It goes without saying, that it's not the disk's that limit the speed of the system. I did not once experience any kind of delays, no matter how much multitasking i did. But neither did I on the 3xRaid-0 setup. It might be possible that certain applications could utilize this arrays possibilities, but I can safely say that I can't. For my use I have seen no, or very little increase in speed, relative to the 3 disk array. Therefor I must conclude, that the fourth disk did not, for my use that is, add anything significant.

After testing and trying all the possibilities from one single disk, to a full grown 4xRaid-0, I must conclude that my favorite is the 3xRaid-0. In my setup, that was where the magic line of "no more HD power needed" was. That being said, I will on the other hand keep the 4xRaid-0 setup as it is, and see if I can find anything that can actually stress it just a bit.
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post #16 of 25
How fast is that old 120 drive you talk about. Can you show a test
post #17 of 25
Quote:
Originally Posted by Skipper
. As said, we are talking the same speeds here, as a pair of 74Gb Raptors in Raid-0.
What do you mean by "speeds"? Most desktop usage is very small file read/writes and the 10k rpm Raptors excel at that because of the much faster seek/access times. Sustained and burst transfer speeds are nice, but sustained isn't used often in a desktop and burst speed can only be truly evaluated when the total procedure is taken into account. Burst speed can't be isolated, it should be looked at with access and seek time taken into account. That's why I rely more on real life performance tests more than overal transfer bandwidth or burst speed.
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post #18 of 25
Thread Starter 
Quote:
Goofy: How fast is that old 120 drive you talk about. Can you show a test
Yes I will add it shortly
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post #19 of 25
Thread Starter 
Quote:
SCCR64472: What do you mean by "speeds"? Most desktop usage is very small file read/writes and the 10k rpm Raptors excel at that because of the much faster seek/access times. Sustained and burst transfer speeds are nice, but sustained isn't used often in a desktop and burst speed can only be truly evaluated when the total procedure is taken into account. Burst speed can't be isolated, it should be looked at with access and seek time taken into account. That's why I rely more on real life performance tests more than overal transfer bandwidth or burst speed.
You are quite right, and that is also why I always mention the faster seek time of the Raptors.

However, The difference isn't actually groundbreaking. Noticeably yes, but worth quadrupling the price. ..... maybe, but hardly.

You might want to consider, that there actually are people (adults) around who actually use their desktop for other things than gaming and surfing. And in those rare instances it actually is rather good with high average read/write rates.

I will make a write up of it all, and put some further info on the raptors as well. I hope that will "unoffend" all you dinosaurs
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post #20 of 25
Quote:
Originally Posted by Skipper
You are quite right, and that is also why I always mention the faster seek time of the Raptors.

However, The difference isn't actually groundbreaking. Noticeably yes, but worth quadrupling the price. ..... maybe, but hardly.
I'm not sure what pricing you're comparing, but the 36gb Raptors are $100.
Quote:
Originally Posted by Skipper
You might want to consider, that there actually are people (adults) around who actually use their desktop for other things than gaming and surfing. And in those rare instances it actually is rather good with high average read/write rates.
I'm an adult as well, but all office productivity I do on my desktops can be done with a P3. What products do you use that heavily tax hard drives and use large file transfers? I use hand coded spreadsheets with embedded formulas and complete these tasks as fast on a P3 as I do with my faster machines. The reason gaming is often mentioned when measuring hard drive performance is because it's pretty easy to notice who loads first. Most gaming machines have 2 gb of ram and the hard drive pagefile is completely disabled, so hard drives aren't important for actual gameplay. Even while encoding, the time is too long for me to wait around and witness hard drive performance, so gaming is really the only place I'm around to measure any differences. I don't believe Raid or Raptors are necessary or offer breathtaking performance, but are a nice finishing touch on a current rig. If there are holes elsewhere, the money can be better spent, but once those holes are plugged, it's another upgrade option that will increase capacity and/or performance.
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