RE: md on partition

I found this old message:
"On Tuesday June 1, maheshext3@xxxxxxxxx wrote:
> 
> --- Neil Brown <neilb@xxxxxxxxxxxxxxx> wrote:
> > 
> > What does
> >    ls -l /dev/hd[eg]5
> > show? How about
> >    cat /proc/partitions
> >    dd if=/dev/hde5 of=/dev/null bs=1024k
> 
> Thanks a lot, Neil, turns out those nodes were not present. After I 
> mknod'd them, all's fine in RAIDland...
>   Quick question: does using extended partitions for RAID affect 
> performance?

The fact that the partitions are "extended" is invisible to most of the
kernel, and it could not have any affect of performance.

NeilBrown"

Guy

-----Original Message-----
From: linux-raid-owner@xxxxxxxxxxxxxxx
[mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Ming Zhang
Sent: Friday, October 22, 2004 1:28 PM
To: linux-raid@xxxxxxxxxxxxxxx
Subject: md on partition

Hi folks.

I remembered that there was a discussion on the list about some abnormal
performance penalty if u use a partition instead of a whole disk for MD.
But I could not find this discussion via archival or google.

Could somebody be kindly enough to point me to the right spot? Thanks a
lot.

Ming


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