On Fri, 2008-09-26 at 09:43 -0400, John Drescher wrote:
> > Just a quick test I ran using
> > dd if=/dev/zero of=/mnt/store/00/bigfile bs=1M count=8192
> > just to get a basic idea of speed:
> >
> > Raid 5: 8589934592 bytes (8.6 GB) copied, 302.948 seconds, 28.4 MB/s
> > Raid 0: 8589934592 bytes (8.6 GB) copied, 27.2641 seconds, 315 MB/s
> >
> > The Raid 5 will not be able to keep up with my network cards...
> >
> Something is very wrong with your setup. Are you using ext3?

Yes - ext3

I had not changed any of the raid stripe size or sys parameters - I just
wanted to get an idea of the speeds.


> 
> 
> BTW, I would never use raid0 or LVM (without every PV being raided)
> for backup data that I cared about.
That is my thinking as well

> 
> John


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