Re: performance limitations of linux raid

[Michael]

> > There's "specs" and then there's real life.  I have never seen a hard drive
> > that could do this.  I've got brand new IBM 7200rpm ATA66 drives and I can't
> > seem to get them to do much better than 6-7mb/sec with either Win98,
> > Win2000, or Linux.  That's with Abit BH6, an Asus P3C2000, and Supermicro
> > PIIIDME boards.  And yes, I'm using an 80 conductor cable.  I'm using
> > Wintune on the windows platforms and bonnie on Linux to do benchmarks.
> 
> turn udma modes on in the bios and run hdparm -d 1 /dev/hda (where
> hda == drive device)
> 

just FYI, 

3 disk raid 5 on udma33 asus mother board + 1 udma33 promise 
controller.

disks are maxtor 87000D8's speced at a maximum of media to interface 
transfer rate of 14.7 mbs -- doesn't include any seek time.

my box has 128megs so ran a 500 meg bonnie.
results 
block write = 7.9mbs
block read = 10.5 mps
pretty good for an old 166 K6

Michael
[EMAIL PROTECTED]