Guest Liquid Posted August 22, 2005 Posted August 22, 2005 yeah im using that at the moment, does it matter what cluster size i use for the partitions? Should they all be at 8, matching the windows cluster size and the 4-1 ratio? Ive currently got my partitions running a 8k cluster size, all ntfs including the 3gb partition file. I recall geting better atto results with 8 rather than 4 on the partitions Share this post Link to post Share on other sites More sharing options...
dred Posted August 25, 2005 Posted August 25, 2005 Ok here are my test results on my 4x raptor Raid 0. I am using the Sil3114. Are my results about typical for the sil3114? Also can anyone guesstimate how much improvement i would get if i moved it over to the nvraid? If i do end up moving it all over to the nvraid can i use acronis true image to move it to the new raid? currently its a 10gb C: 64stripe 4k cluster and a 127gb D: 64 stripe 16k cluster. Share this post Link to post Share on other sites More sharing options...
Fight Game Posted August 25, 2005 Posted August 25, 2005 hey dred, you should have much better results with 4 raptors. I don't know if its the sil controller or what, but you should be able to get those numbers with 1 raptor. The sil controller is 1.5gb transfer, where as the nvidia is 3, so try the nvidia out. Your throughput and burst are way too low. I get higher than that with only 2 drives, and they aren't raptors! Share this post Link to post Share on other sites More sharing options...
red930 Posted August 25, 2005 Posted August 25, 2005 The SIL controller is the problem. Those things will fly on the nVidia controller. Share this post Link to post Share on other sites More sharing options...
red930 Posted August 26, 2005 Posted August 26, 2005 Adaptec 39320A-R U320 SCSI 3 HostRAID Controller 2 x Maxtor 15K 73Gb U320 Hard Drives in RAID 0 PC Toys U320 SCSI 3 (Verified Full LVD & non-SE) Rounded SCSI Cable 16K Stripe size Default NTFS cluster size Share this post Link to post Share on other sites More sharing options...
red930 Posted August 26, 2005 Posted August 26, 2005 I would check the cache settings on the card along with the word size. Adaptec 39320A-R U320 SCSI 3 HostRAID Controller2 x Maxtor 15K 73Gb U320 Hard Drives in RAID 0 PC Toys U320 SCSI 3 (Verified Full LVD & non-SE) Rounded SCSI Cable 16K Stripe size Default NTFS cluster size Share this post Link to post Share on other sites More sharing options...
Mayhem Posted August 26, 2005 Posted August 26, 2005 Not 100% here but here are my results 4 x Rapters on sli-dr 32kb clusters on XP sp2 Not 100% impressed compaired to some of your must be doing something wrong. Share this post Link to post Share on other sites More sharing options...
red930 Posted August 26, 2005 Posted August 26, 2005 I would check the cables with those results. You might have a drive dragging you down. Share this post Link to post Share on other sites More sharing options...
Mayhem Posted August 26, 2005 Posted August 26, 2005 all the cables came with the DFI mainbord. Share this post Link to post Share on other sites More sharing options...
Fight Game Posted August 26, 2005 Posted August 26, 2005 mayhem, first you stated that you were using 32k cluster (and didn't mention stripe), and it also says this in the Hard Drive Tach Bench. But then in the ATTO benchmark, it says 32k stripe and default cluster...Which is it? The results you're getting are consistant with what I would expect if your stripe/cluster ratio is out of whack. I suggest trying 16k stripe with 4k cluster. 4:1 ratio. You should be hitting atleast 150mb Share this post Link to post Share on other sites More sharing options...
Mayhem Posted August 26, 2005 Posted August 26, 2005 wopps dunno what im talking about lol. oky set the bios raid to 32k when setting it up striped - then i just installed windows xp !!! Simple as that . i dont know how to change any thing else due to that fact this is one hell of a long thread. how do i go about changeing the size to 4:1 (sorry but some times thats why us ppl come on here cos we dont fully understnd thae concept correctly.). 99% ppl dont read manuels and just jump stright into the fire with out thinking (that may be me). Share this post Link to post Share on other sites More sharing options...
red930 Posted August 26, 2005 Posted August 26, 2005 You set the stipe width in the RAID BIOS. The default is 64K which is good for four drives. The default cluster size is 4K in Windows OS. The more drives you have the larger stripe you need. I normally work with two drives so the max stripe width I use is 64K. The cluster is the smalles chunk of data the drive can store. If a file is only 1K it will still take up an entire 4K cluster. See here for a discussion on RAID that might clear up some of your questions... http://www.storagereview.com/guide2000/ref...epts/index.html wopps dunno what im talking about lol. oky set the bios raid to 32k when setting it up striped - then i just installed windows xp !!! Simple as that . i dont know how to change any thing else due to that fact this is one hell of a long thread. how do i go about changeing the size to 4:1 (sorry but some times thats why us ppl come on here cos we dont fully understnd thae concept correctly.). 99% ppl dont read manuels and just jump stright into the fire with out thinking (that may be me). Share this post Link to post Share on other sites More sharing options...
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