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18th February, 2005, 05:36 PM
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 Extremely Poor RAID0 Performance Hello again Gang, I was reading on 3dgameman that he has benched 2 WD 74GB Raptors in RAID0... his scores are way faster than mine, as you can see from the screen shot... As I have the same setup with regards to Stripe Cluster size, why the hell is my system so much slower? Is the Nvidia RAID just slower than Intel's solution (  ) or am I doing something wrong?Anyone have any Ideas? TIA, WW
__________________ AMD Athlon64 FX-55 @ 5 x HT / 255 X 11 = 2805MHz / +.10v Swiftec MCX6400-V / Artic Siver 5 (32 idle / 55 load Epox 9NDA3+ *Dead and warranty declared void for no reason* 2 x 512MB OCZ PC3200LL DC Platinum Rev. 2 @ 2.5-3-10-3-1T / 2.8v / Slots 3 & 4 Powercolor Radeon X800 Pro VIVO S/M to X800XT PE @ 1.5v / 67MHz /CAT 5.1 2 x WD740GD (RAID0 Boot Volume) SATA 1 & 2 1 x WD1200JB (IDE 1) Plextor PX-W 4012A / Samsung SD-616E (IDE 2) OCZ Powerstream 520 Creative SB Audigy2      |
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18th February, 2005, 06:35 PM
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| i cant se any thing bad. you got around 100 mb/s do you have a link to that test
__________________ Gigabyte X38DS5/E8500~4300mhz/Corsair Dominator 8500Cl5/ 2x1950XTX in CF/2xRaptor in raid0.  |
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18th February, 2005, 06:52 PM
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| Hi Finetobe, The page is here: http://www.3dgameman.com/forums/showthread.php?t=34267 I also ran SiSoftSandra just as he did, and only got 79MB, as opposed to his 100+ MB...
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18th February, 2005, 07:19 PM
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| do you have the os install on the raid 0? . you have to be sure that you use the same vers of sisoftsandre . i think that he has the os on a ata hd so there is no data on the raid 0. there is an new bios for the motherbord . 25-11-04 BIOS is old
__________________ Gigabyte X38DS5/E8500~4300mhz/Corsair Dominator 8500Cl5/ 2x1950XTX in CF/2xRaptor in raid0. |
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19th February, 2005, 09:55 AM
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| yes, the OS is on the RAID Array... Would it make that much of a difference?
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19th February, 2005, 10:40 AM
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| Quote:
__________________ "You know, when I campaigned here in 2000, I said, I want to be a war President. No President wants to be a war President, but I am one." --George W. Bush, Des Moines, Iowa, Oct. 26, 2006 |
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19th February, 2005, 01:44 PM
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| yes it do. when you run the test .windows will still read/write from the disk at the same time. there is pagefile /recovery and so on . tray to make 2 partitions on the raid an run the test on both.
__________________ Gigabyte X38DS5/E8500~4300mhz/Corsair Dominator 8500Cl5/ 2x1950XTX in CF/2xRaptor in raid0. |
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19th February, 2005, 01:50 PM
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| I don't run a pagefile, but when I used to, it was on my PATA drive, so as not slow down the Raptors... Thanks for the info regarding the OS though... I didn't know it could have such a big impact on performance! 
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21st February, 2005, 01:30 AM
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| Have you tried a 16K stripe ?
__________________ If you need EPoX BIOS eeproms in the UK, goto http://www.epox.org..................... |
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21st February, 2005, 07:48 AM
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| No, ET, I haven't tried a 16K Stripe... I was under the impression that 64K was the best, based on what I've read. Is it possible to create the array using a 16K stripe without losing the install that's on the array at present?
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21st February, 2005, 07:50 AM
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| I know from experience that Intel's ICH5R and ICH6R have the best performance with this stripe size - hope it may also apply to these NVidia RAID-MCP's.
__________________ If you need EPoX BIOS eeproms in the UK, goto http://www.epox.org..................... |
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21st February, 2005, 07:50 AM
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| dont think so 
__________________ Dell Inspiron 6000 1.73GHz Intel "Sonoma" 1GB DDR2 533 ATI X300 Join our F@H team today.. http://www.team45.info/ Are you a subscriber? No? well then, why not.... Subscribe to AOA for a better experience and faster downloads! How to unlock and overclock your Nvidia 6800 BIOS Volt-mod your 7800gt  |
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21st February, 2005, 07:51 AM
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| Quote:
__________________ If you need EPoX BIOS eeproms in the UK, goto http://www.epox.org..................... |
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21st February, 2005, 08:01 AM
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So is it possible to resize the Stripe on my existing Array?
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21st February, 2005, 08:13 AM
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| You would unfortunately have to create a new array
__________________ If you need EPoX BIOS eeproms in the UK, goto http://www.epox.org..................... |
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21st February, 2005, 08:16 AM
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| Ah Well, I was gonna remaster the machine soon anyway... Thanks for the advice ET, I'll give it a try when I do end up remastering it. As always, your help is greatly appreciated! 
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21st February, 2005, 08:32 AM
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| I have found that there is close to zero difference in performance between 16k,32k and 64k stripes. It depends on what file sizes you are most commonly moving/manipulating.
__________________ Dell Inspiron 6000 1.73GHz Intel "Sonoma" 1GB DDR2 533 ATI X300 Join our F@H team today.. http://www.team45.info/ Are you a subscriber? No? well then, why not.... Subscribe to AOA for a better experience and faster downloads! How to unlock and overclock your Nvidia 6800 BIOS Volt-mod your 7800gt |
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