LSI MegaRaid 300x8 performance w/ 3x750gb in Raid 5

[Mellman]

http://www.melltech.net/images/HDTACH_LSI_300x8_3x750_S72.10.JPG

Hows the performance?

 

[Mellman]

bump!

 

[Rubycon]

Nice setup but HD Tach really confirms your bus speed and STR is in order - nothing else. If this is on a server you need to use a program like IO Meter and set it up to simulate what kind of real world load the server should expect for a real test of performance, etc.

 

[Madwand1]

Reads looks good to me for 3x RAID 5 with those drives. But you need to test write performance with RAID 5.

 

[Mellman]

will IO meter test write performance? What is another app I should use to test write performance...

its a home server so it doesnt REALLY matter, but I want to make sure this controller will be suitable, because eventually it will be a network file server, and be accessed for encoding and decoding video (think big media server, all legal though!)

 

[Big Lar]

I use the disk diagnostics in Winbench99, as well as ATTO. HDTach dosn't read Only my C drive for a good test, as I have my C/D drive on the array together, and it tends to bench both at 1 time.

What size is your stripe?

 

[Mellman]

64K stripe size, should I change that any?

I'll use winbench99 and ATTO when i get home this evening.

-Matt

 

[Big Lar]

Originally posted by: Mellman
64K stripe size, should I change that any?

I'll use winbench99 and ATTO when i get home this evening.

-Matt

It depends on What you do with the computer, as to what Stripe size you want. You would need to reformat to change the stripe in the controller anyhow.

I am on a 64k stripe as well, which is good for files, of course 64k and smaller. I am going to up it to 128k next time I reformat, as I do tend to move bigger files around at times. Not sure what OS you are running, but I did read in Google Groups that the LSI and XPsp2 have issues with 64k or smaller. Thats another reason I will change mine, to see if it gets better or not, tho I am not complaining yet.

Larry