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  Can Windows 7 Handle Simultaneous Copy Operations Without Slowdown?  
 
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binar Jan 02, 2011, 10:24pm EST Reply - Quote - Report Abuse
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Edited: Jan 02, 2011, 10:46pm EST

Replies: 4 - Views: 2531
Fellow Forum Members,
I'm building a new computer using Windows 7 Pro and curious about whether an old Windows XP deficiency still exists in the spanking new Windows 7 operating system. My old Windows XP PC chokes any time I try to run two copy operations from DVD drive to internal Hard Disk at the same time.

Does Windows 7 do a better job of running two separate copy operations from DVD drive to internal Hard Drive at the same time? Each copy operation involves moving 4.37 GB of data from DVD disc to internal hard drive.

Even more, if I setup my new Windows 7 PC with four DVD drives, will Windows 7 choke if I were to run four separate copy operations from four DVD drives to internal Hard Drive at the same time? I have a lot of DVDs to copy to an internal hard drive and this work could be done faster if I could build a PC with three or four DVD drives that could all copy at the same time to a hard drive without choking. What hardware specification should I shoot for to avoid the bottlenecks associated with running multiple DVD drive to internal hard drive copy operations at the same time? Will it help if I setup a 64 Bit system as opposed to a 32 Bit system? Will having each DVD Drive copy to it's own designated internal hard drive as opposed to all DVD drives coping to the same hard drive help the data transfer time? Any info or advice on this matter would be greatly appreciated. Thanks.


Preliminary System Specifications:
ASRock X58 EXTREME6 LGA 1366 Intel X58 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E1681315721...ntel%20X58

4 Gigabytes of DDR3 1600 RAM

Intel Core 2 Quad Q9550 Yorkfield 2.83GHz
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115041

4 Plextor 812 SATA DVD drives


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G. G. Jan 03, 2011, 12:58am EST Reply - Quote - Report Abuse
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>> Re: Can Windows 7 Handle Simultaneous Copy Operations Without Slowdown?
Binar,


Ummmmm..... you got an issue with your preliminary system spec...... in regards to your memory and cpu....

That ASRock mb is Tri-Channel and it takes 1366 socketed cpu's......

So the memory is not enough and that Q9550 not gonna work....



The memory needs to be either 6GB or 12GB of DDR3 1600 and the cpu should be either a i7-950 or i7-960.




With 4 Plextor SATA DVD drives going on at once.... yes..... do the operation where each optical is being read then copy to its own hdd. This will keep the stream steady and less likely for the hdd being interupted trying to get i/o from multiple sources.. You will need Win 7 64bit becuase with that mb, you will be running above 4gb of memory.. i.e. 6 or 12gb. I shoot for 12gb worth..




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john albrich Jan 03, 2011, 01:41am EST Reply - Quote - Report Abuse
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Edited: Jan 03, 2011, 01:44am EST

 
>> Re: Can Windows 7 Handle Simultaneous Copy Operations Without Slowdown?

A few things I'd also consider (even if using XP)

I'm going to assume you're using all SATA connections these days. Drives sharing IDE cables can degrade transfer rates quite a bit.

Get the largest on-drive buffer sizes in any drives you purchase

Disable pagefile if possible (not sure how much diff this will make on Win7, but it could be a bottleneck for multiple large-block memory operations by forcing many transfers to interact with the system drive)

Try a few sets with write-cacheing enabled on every hard drive partition, and a few with write-cacheing disabled on every partition, and see if one or the other makes a significant difference

Consider formatting the hard drive partitions with ~32KB cluster sizes (the default is 4KB). It will depend on a number of factors, but generally when dealing with large blocks of data I've found smaller cluster sizes results in slower transfers and larger sizes provide little or no improvement, and sometimes even degrade the transfer speeds. You'll probably have to experiment but the results can be dramatic.

Dublin_Gunner Jan 03, 2011, 07:29pm EST Reply - Quote - Report Abuse
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Edited: Jan 03, 2011, 07:32pm EST

 
>> Re: Can Windows 7 Handle Simultaneous Copy Operations Without Slowdown?
X58 supports tri channel sure, but works quite happily in dual channel. So 2x2GB would be plenty, providing you're not building a syatem that will be running memory intensive apps.

You could have your storage on a 2 or 3 disk raid 0 array, which should also help with transfer speeds (though personally for doing this type of stuff I'd get maybe 4 or 5 disks and go RAID 5 which includes some redindancy so you are much less likely to lose your data shoudla drive fail).

Oh, and disabling the pagefile in Win 7 doesn't really do anything, Win 7 has improved upon its memory performance, so tends to use ram instead of the pagefile.

Then of course if you do use a program(s) that max out your ram, you're going to hit problems with applications crashing etc.

PAgefile max should be set to the maximum commit charger you get when running all the programs you usually run. That way if the pagefile is used, you're 1. not wasting space, and 2 have enough of a pagefile for fallover should your physical ram be all used up at any time.




Lancool PC K62
Phenom II x3 @ 3.5Ghz
4GB DDR2-800
ASUS GTX570 DirectCU II
binar Jan 04, 2011, 10:40pm EST Reply - Quote - Report Abuse
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>> Re: Can Windows 7 Handle Simultaneous Copy Operations Without Slowdown?
Thanks to all for their post.

I need to cancel my Newegg e-blast suscription because it's making me spend too much money, I just purchased the AsRock X58, 24 GB of G.SKLL Ram (it was on sale), and the 6 core Intel Core Extreme 980 processor (also on sale). All I need is a video card.

Nvidia cards are INSANELY priced. The Quadro card series range from $4,000 for the Quadro 6000 to $800 for the Quadro 3800. The reason I'm looking at the Quadro series is because Adobe Premiere works a lot faster with the Nvidia CUDA technology only these cards offer.

I think the smart thing to do is just buy a low end graphics card such as the GForce GTX 460 and wait for the prices to go down on the NVidia Quadro 5000 by the end of this year. This way I can balance out the outrageous price I paid for the my Intel Extreme Processor. All I need to confirm is if the GTX 460 offers High Definition output with HDMI.

All in all, I think this box is going to turn out pretty sweet. With the 12 SATA connections on this board, I'm going to have storage expansion for the next five years.

Thanks to all again.



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