Re: 2.5 'what to expect'

From: Jeff Garzik <jgarzik@pobox.com>
To: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Dave Jones <davej@codemonkey.org.uk>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: 2.5 'what to expect'
Date: Fri, 11 Jul 2003 11:58:43 -0400	[thread overview]
Message-ID: <20030711155843.GD2210@gtf.org> (raw)
In-Reply-To: <Pine.SOL.4.30.0307111646470.9740-100000@mion.elka.pw.edu.pl>

On Fri, Jul 11, 2003 at 04:55:39PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > > - The hptraid/promise RAID drivers are currently non functional, and
> > >   will probably be converted to use device-mapper.
> 
> Please put software RAID here to avoid confusion.

That introduces confusion with dev/md, which is what people have
traditionally called software RAID, IMO...

I like arjan's "fakeraid" or "ataraid" names.  ;-)

> > > IDE.
> > > ~~~~
> > > - Known problems with the current IDE code.
> > >   o  Serverworks OSB4 may panic on bad blocks or other non fatal errors
> > FIXED
> > >   o  PCMCIA IDE hangs on eject
> > Should be fixed in 2.5, fixed(ish) in 2.4
> > >   o  ide_scsi is completely broken in 2.5.x. Known problem. If you need it
> > >      either use 2.4 or fix it 8)
> > > - IDE disk geometry translators like OnTrack, EZ Partition, Disk Manager
> > >   are no longer supported. The only way forward is to remove the translator
> > >   from the drive, and start over.
> >
> > Or to use device mapper to remap the disk.
> 
> "hdx=remap" and "hdx=remap63" boot options can be used.
> Or can I remove them?

You can remove them... if there is a userspace component that handles
this.  As much as I would love to do so, we can't just remove components
that DM _can_ handle ;-) ;-)  If so, we could go ahead and remove MD
raid0 too, and such.

	Jeff