ata raid performance question
This is a discussion about ata raid performance question in the Windows Hardware category; I have two ata/66 harddrives and I want to raid them together to make a super drive (for storage, as I have ultra160 serving as the boot device). If i get an ata/66 raid controller, I feel this would be inadequete and would not let me get the full performance possible.
I have two ata/66 harddrives and I want to "raid" them together to make a super drive (for storage, as I have ultra160 serving as the boot device). If i get an ata/66 raid controller, I feel this would be inadequete and would not let me get the full performance possible...I feel this way becuase I think the drives already go about 35megs/sec and together, that would exceed the rated 66megs/sec.....so if I want to get an array consisting of 2 ata/66 drives, I need to get an ata/100 card?? I feel this is true, but feel free to correct me if I am wrong.
-oXide{
p3-700 (clocked to 1000)
320megs
Voodoo5
ultra160
win2k
};
ps..3dfx for life
-oXide{
p3-700 (clocked to 1000)
320megs
Voodoo5
ultra160
win2k
};
ps..3dfx for life
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Jan 17
Jan 21
0
4 minutes
Responses to this topic
you can still go raid, dont worry about that
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win2kbox.cjb.net
P3600EB,TyanTiger133, PC150cas2(128mb), WD 20gb, sblivex-gamer, geforce2 gts
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win2kbox.cjb.net
P3600EB,TyanTiger133, PC150cas2(128mb), WD 20gb, sblivex-gamer, geforce2 gts
OP
my question, if you read it, is whether or not i should get an ata/100 raid controller, or an ata/66 controller
-oXide
-oXide
duh! if your drives support ATA100 then definitely get it to maximaize potential, if they are ATA66 drivers then dont bother
i have the abit hot rod pro 100 and it works great i would recomend it for both price and performance i had a promise fastrak 66 and it was an absolute peice of s.hit so i got the abit card and i can now i have no stability problems whatsoever. I use raid 0 with 2 ata 66 drives as my system drive.
With regaurds to your question i beleive that the 66 is for each drive but i could be wrong. anyway just get the abit card you will be happy
With regaurds to your question i beleive that the 66 is for each drive but i could be wrong. anyway just get the abit card you will be happy
Lemme get this straight. You have a SCSI Ultra160 as your boot and you want to RAID your IDE??!! WTF??!!
OP
I have extra ide drives and my ata controller on my mobo is getting screwy anyway...so why not. if life was perfect, i would by more ultra160 drives but they are hella expensive
-oX
-oX
I know what you mean. I'm going for ATA/100 2X45G raid myself. Gonna go Ultra160 next christmas. Get a Primise ATA/100 RAID controller. Best IDE RAID there is
OP
What makes this Promise controller better than the Abit one? The abit one is super cheap as well. Also, no one has touched my question as to whether or not 2 ata/66 drives working in raid would be limited by an ata/66 raid controller.....let me give you an example:
ultra160 drives go at about 40meg/s...that leaves 120megs of bandwidth free on the SCSI channel....so you can have 4 drives running at raid0 and obtain optimal performance...If you put on 5 drives, then all drives would not be able to run at 40megs/sec...Is this true for ata? What if I have 2 highend ata drives (if such a thing exists=), that do 40megs/sec and put them on a raid/66 controller....then will each drive be limited to 33megs/sec?
-oXide
ultra160 drives go at about 40meg/s...that leaves 120megs of bandwidth free on the SCSI channel....so you can have 4 drives running at raid0 and obtain optimal performance...If you put on 5 drives, then all drives would not be able to run at 40megs/sec...Is this true for ata? What if I have 2 highend ata drives (if such a thing exists=), that do 40megs/sec and put them on a raid/66 controller....then will each drive be limited to 33megs/sec?
-oXide
Id unno the asnwers to the posted question but I wanted to mentioned that in actuality the proimse is not the better one. Check any copmarison review and the Hot Rod performs better and plus lower CPU utilization. I like saving cpu cycles every single place I can, thats a big plus for me.
this is one of the first reviews I found If I stumble over other ones Ill post them as well.
http://nospin.com/2000_02/009.html
http://nospin.com/2000_02/009.html
OP
dope...thanks
I'll post my HPT360 with 2X IBM 46G tommorow Raid 0 64K. Pretty good scores.
If you plan on having more than 2 HD's on an IDE RAID then your going to get less than optimal performance. The performance freaks only use Raid 0 with 1 HD on PM and 1 HD on SM. Any HD put on slave will work of course but you WILL get degraded performance because of the way IDE works.
If you plan on having more than 2 HD's on an IDE RAID then your going to get less than optimal performance. The performance freaks only use Raid 0 with 1 HD on PM and 1 HD on SM. Any HD put on slave will work of course but you WILL get degraded performance because of the way IDE works.
OP
How will this array of ata/66 drives compare to my ultra160????
It'll be slower or mabye faster on transfer depending on what SCSI drives you have.
HDTACH v2.61
2X45G Raid 0 HPT370 DMA/100
RAS=12ms
RBS=80+ (off the chart)
Read Speed
Max=60912.0kps
Min=25026.0kps
Avg=38750.6kps
CPU Utilization=2.4%
HDTACH v2.61
2X45G Raid 0 HPT370 DMA/100
RAS=12ms
RBS=80+ (off the chart)
Read Speed
Max=60912.0kps
Min=25026.0kps
Avg=38750.6kps
CPU Utilization=2.4%
