Poor seagate 7200.10 in raid0 speeds

Eddietop

Eddietop

Eddietop

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Joined
3 Oct 2003
Posts
611
Location
Northampton,UK
Hi, i seem to have an issue with some new seagate 7200.10 (320gb) drives i have installed.

I have configured them in a striped raid0 array with 32k stripes using my nivida raid controller on my asus a8n deluxe board.

The raid drivers are slipstreamed into my XP install using nlite as i dont have a floppy drive.

Here is a screen from HD TACH showing their performance:



As you can see they are not reaching their full potential :(

They are not jumpered, iv'e tried new sata cables, tryed swapping sata ports and i have disabled read caching on both drives.

Cant think of what else to try :confused:
 
Normally poor performance on NVidia RAID stripes is down to the read caching being on but if you've disabled that then it's something else :confused:

Have you got the latest Forceware drivers for the disk controllers?
 
Iv'e done a full install of nvidia 6.86 nforce drivers and i said yes to the IDE SW driver as well.

Disabled write caching as well now and i get a higher burst:



but read speed is still very poor
 
Are you running a 680i board?

If so it's a common problem with all reference boards (which excludes Asus & Abit)

I've switched back to non-raided drives for the time being until a new bios is release which resolves the problem
 
Still having problems with the raid speed, so i disabled raid and installed windows to run HD tach on each drive.

First drive that windows was running from was getting 41mb/sec average read
The other one gets 65Mb/sec.

Does it sound normal? i was not running any apps or anything while i was doing the tests.
 
Just swapped the drives around so that the slow one was not the OS drive anymore. Still got the same result..

Here is the slower one:



And the other:



Guess this explains why my raid was so slow, the system kept waiting for the other drive to catch up.
 
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