Subject: Re: Multiple RAID1 partions on same disks
To: Manuel Bouyer <>
From: Greg Oster <>
List: current-users
Date: 08/30/2002 07:21:59
Manuel Bouyer writes:
> On Thu, Aug 29, 2002 at 08:43:29PM -0600, Greg Oster wrote:
> >  [..]
> > > 	Would there be any chance it could degrade the performance of
> > > 	the system?
> > 
> > I've not done any real benchmarking on exactly that, but it shouldn't be
> > any worse than partitioning a disk without the RAID. 
> Could't there be an issue with parity rebuild or reconstruction ?

Yes, you are correct.  But hopefully that is something that doesn't happen 
very often :)

> raidframe will do this in background, slowing down when there are other
> I/O going through the RAID, but will it include I/O not going through the
> RAID for its computations ?

No.  RAIDframe will not know about any other I/O that might be happening to
other partitions on a disk.  This includes I/O to other RAID sets as well...


Greg Oster