ICH8R Raid 0 results?

[cadsii]

I'm running p5bdlx with 3X320wd sataII in a raid 0
here are my results..
anyone running onboard raid care to share results for comparison

[mtl_hed]

I'll be running tests with 4x T7K250 250GB Hitachi's later this week.

I'll try 0 and 5.

Based on your numbers I should expect somewhere around 200MB/s throughput?

[cadsii]

avg for mine is 134 so i'd say about 170-180 for you... with 0 not 5

[bing]

Cadsii, enable the Write Back Cache at the Intel Matrix Console, guaranteed, you'll get higher burst !

[kiner]

ab9 pro + 3 * seagate 7200.10

Raid0


ab9 pro + 4 * seagate 7200.10

Raid5

[One_Hertz]

yours seems low... here is 4x74gig raptors in raid 0. I shouldnt be THAT much faster than you in sequencial read.



Edit: whoops that image had antivirus running in the background here is a new one:

[Bigmaxy]

What stripe size are people running with their Raid 0?

[Revv23]

i think you guys need to define a cluster size before you can start comparing.

[cadsii]

128k for me i just enabled write cache i will post results soon..
your raptors are 10k right and i bet cost twice as my wd.
anyways i will be adding 3 more 320gig this thursday setting it up as raid5

[afireinside]

2*74gb 8mb cache raptors matrix raid 0 36gb and raid 1 51gb. FAST

[Ace-a-Rue]

you all know that the burst speed is miss-reported..it is an anomaly in HDtach and the raid driver....enabling write-back cache can not improve burst performance by almost 9 to 10 times..i could maybe believe 2X or 3X but not 10X!

[syne_24]

yea its just a silly bug

Ace I'm still jealous of your Areca anyways..lol

@One_Hertz

hey is that 4x ADFD Raptors? I thought it would be a little more faster

[Ace-a-Rue]

you need to get one when!

when you do...go to their FTP server to download the windows 32 bit drivers for XP and 2K...the version that they put on the CD disc is not compatible with XP and 2K...windows 2003 server drivers on the disc are ok.

[One_Hertz]

@One_Hertz

hey is that 4x ADFD Raptors? I thought it would be a little more faster

nope adfd are 16mb i believe, those should be a bit faster than mine. I am using 32k strip/cluster size

[afireinside]

hmm I'm using 64k strip... 32 faster?

[fhpchris]

you all know that the burst speed is miss-reported..it is an anomaly in HDtach and the raid driver....enabling write-back cache can not improve burst performance by almost 9 to 10 times..i could maybe believe 2X or 3X but not 10X!

It uses the CPU and system ram to cache, I would expect DDR1100 cas 4 is just a tad faster than the Sdram found on most pci-e or pci-x raid cards...

Oh, Here are my results on ICH7R on the WS PRO:

Raid 0 array -80gb

Raid 5 array ~900GB


The burst speed isnt the best part, 300+ mb/sec raw transfer is HUGE!

[kiwi]

Better test PCmark HD suite

8MB cache raptors have 6ms access, something must be wrong

[fhpchris]

Nothing is wrong, Matrix raid has the option of only making an array out of the fastest part of the drive, this way the array has crazy transfer that does not level off, and it has very low access times...

My benchmarks were done with 7200 rpm drives, and I get 9ms or less access on my raid 0 array

[K404]

For the guys with strong zig-zagged average Read graphs...try moving your Sata cables further apart. I had cross talk between mine when they were cable-tied together for neatness. The second the cable tie came off and the cables were well spaced my performance was much better.

[hotrippr]

Here is ich7r on p5wdg2-ws getting by all of you.
Anything I can do to improve performance?

2 80g Deathstars (model 7k80) raid0
Advertised as 8ms avg seek
8mb cache
7200rpm
Native Command Queuing
ECC and CRC

[mtl_hed]

Well, I said I was going to post pics. But strange thing happened...

First day of build I ran HD tach and got ~190MB/s; but, today I am only getting 122.

I've made no changes other than installing games. Checked disk fragmentation is practically non-existant.

Specs:
6300 @ 393x6
p5b dlx
OCZ 2GB 800 5-5-5-15 @ 1:1
4x Hitachi T7K250 250GB in RAID 0 on ICH8R

stripe: 128k
Test: 8MB zones(quick)

[kiwi]

Nothing is wrong, Matrix raid has the option of only making an array out of the fastest part of the drive, this way the array has crazy transfer that does not level off, and it has very low access times...

My benchmarks were done with 7200 rpm drives, and I get 9ms or less access on my raid 0 array

Run pcmark please, either hdd suite or full suite, see if you can get more than 17 at hdd xp startup

[Ace-a-Rue]

check your caching scheme to see if it is enabled?

[KiD0M4N]

2*74gb 8mb cache raptors matrix raid 0 36gb and raid 1 51gb. FAST

Hey,

Can you tell me in details your raid config. I am amazed at your results. I get like 99MBps with 2 x 36.7GB Raptors RAID-0 w/ 16K stripe size.

Karan

[Ace-a-Rue]

if you are focused on the "burst" speed that is an anomaly with HDTach...it is not reporting it correctly.