Cheetah Throughput Confusion

J

JesseV1.0

n00b
Joined
Nov 6, 2007
Messages
33
I found some 36 gig 15k SAS Seagate Cheetahs (model# ST336754SS) on ebay but I'm having a really hard time finding reliable specs. According to the pdf manual on Seagate's site the drives have an Internal data rate of 685-1,142 Mbits/sec, wouldn't that translate to the sustained throughput that this site has in the specs? --->>
Sustained Throughput (MBps): 85.6 to 142.7
Click to expand...

Now this site has specs for this drive that are quite a bit different:
Sustained Speed (MIN) 58mb/sec
Sustained Speed (MAX) 96mb/sec
Click to expand...

I get these 2 different results on many different sites? Maybe I'm not getting something here? I've been reading about this for 3 hours now and I have a serious headache- no joke.
 
OK. I just read this article and I now understand that there is a difference between min/max throughput and min/max sustained throughput (sustained transfer rate--STR).

So does 58-96 mb/s sound right for this drive?



2a67_1.jpg


2b29_1.jpg


Also, I just bought 4 of these and I'm planning on doing a RAID 0 with the PERC 5i. I Tested the PERC and it works in my EVGA 680i. I was gonna do a RAID 0 with 4 Raptors but I thought I'd have better performance with the Cheetahs. So my second question would be: Did I make a good move by going with the Cheetahs over the Raptors? The cost is the same for what I paid for the Cheetahs but I will have half the storage, which doesn't bother me because right now I'm only using 36 gigs of my 139 gig capacity 2 Raptor RAID 0.
 
kleox64 said:
Spec for your specific model:

http://www.seagate.com/ww/v/index.j...fa74c010VgnVCM100000dd04090aRCRD&locale=en-US
Click to expand...


Thanks but I already read those specs and they don't list the average sustained transfer rate. Some E-tailers do, but I'm wondering where they got that info from, unless they used all of the equations that are found in the article I posted a link to. Also, I did read up on the Cheetahs before I bought them, the newer generation drives are a bit too pricey for me at the moment. I got these off ebay for 80 a piece, maybe later on down the road I'll upgrade to the next gen Cheetahs, it's nice to know I can now that I have this kicka$$ SAS RAID card :D. If someone here has one I'd like to know the average str for one of these drives.
 
You must log in or register to reply here.
Back
Top