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Best OS for disk performance measurment?

post #1 of 8
Thread Starter 
OK, I am setting up a dual xeon rig to test HD performance (scsi, sata, sas, etc) in several raid and non raid setups. If I have the chance, I will also be testing some SDD's if I have enough time before the customer's server ships. Now I usually use IOmeter to test large disk setups and Windows server 2003 R2 standard edition x64, because one of my customers requires the specific info that IOmeter puts out and they use the afore mentioned OS. I will be using a couple of tools besides Iometer to compare the numbers, including HDtach and ATTO bench.

My question is;

Will it matter what OS I use? Yes I will be using x64...

I have access to all M$ os's (thanks technet!), so that is not an issue.

I will be installing the OS on a single drive and using a separate controller to handle the drives under test, including the onboard controller, an Adaptec 3805 for sata and sas drives as well as an Adaptec 39320 to test 10k rpm and 15k rpm drives.

Here is the setup;
Tyan S2692
2x Xeon 5160's stock coolers
4gb (4 x 1gb) PC2-5300 Micron memory
ATI X1950 Pro 256
--some psu--
--some dvd drive--
--crappy KB & mouse--
--current LG monitor--

Parts to be tested;
SCSI:
Adaptec 39320A dual channel controller
Seagate Cheetah 15K.4 ST336754LW x3
Maxtor Atlas 10K x2

SATA:
Onboard controller raid 0,1,5 & 10 (10 is windows only)
Adaptec 3805 raid controller raid 0,1,5
WD 2500 x3
--other sata drives depending on what is in stock--
--ssd, depending on stock--
--sas drives depending on stock--

I am going to use the table listed in the *OFFICIAL* HD Database/Benchmark; RAID & Single Drives thread for a test matrix. If you have suggestions, feel free to throw them out. I just need to know what OS to use before downloading...

Off to build the hardware...
pics if requested...

EDIT: Had a delay, since the mobo tray I am using does not have the Xeon HS supports. Time to break out the drill and tap!

EDIT2: Got the mobo plate drilled and tapped, only one CPU at the moment (needed the other for a different project), and only 2gb of memory (for the same reason). Then I discovered that my PSU does not have the connections I need for the mobo. Picking one up today. Still need to verify the correct OS, but it looks like I am just going with WIN server 2003 x64.
Edited by airbozo - 7/2/08 at 7:55am
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post #2 of 8
Thread Starter 
Got the parts together and the right PSU. Downloaded and installed Windows Server 2008, and setup the SATA in raid 5. My main boot drive was then put into the "members" list as a degraded raid 0 member. This was a new drive, so not sure why. I will reload tonight with the proper drivers and try again.

Still working on the exact test plan.
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post #3 of 8
shouldn't this be determined by the OS that your customers will be using? and the services that will be running on the servers?
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post #4 of 8
Thread Starter 
This is mainly for my general knowledge and fun. I am thinking on testing with different OS's to see if it matters at all. I have some equipment available to me and I was trying to determine if certain setups are better than others. In my next build I may use some of this stuff itf it really makes a difference.

Funny note: I am just now reading the June issue of PCFORMAT magazine and they have a good article on raid performance vs regular disks. Regular disks and raid are almost exactly the same performance when loading games...
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post #5 of 8
it does sound like fun. you should do one with opensolaris + ZFS
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by yawnbox View Post
it does sound like fun. you should do one with opensolaris + ZFS
Cool, I will add that to the list (have a disk here in my lab somewhere too).

Right now my plan is to test on;

XP
Vista 32 and 64 bit
server 2008 x64
server 2003 x64
linux x64
RHEL5 x64
Open Solaris +zfs (and without to see the difference)
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post #7 of 8
Are you using Ubuntu Linux or Suse Linux? I think Suse is more server friendly.
post #8 of 8
Thread Starter 
Quote:
Originally Posted by Anqt31 View Post
Are you using Ubuntu Linux or Suse Linux? I think Suse is more server friendly.
Hadn't planned that far, but I will take suggestions. I am working on getting the arrays setup tonight and then I have to reload the OS on a different disk.
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