linux-kernel - RE: HP (Compaq) Smart Array 5xxx controller SCSI driver

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Message-Id: <20080725000638Q.fujita.tomonori@lab.ntt.co.jp>
Date:	Fri, 25 Jul 2008 00:06:38 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	Mike.Miller@...com
Cc:	fujita.tomonori@....ntt.co.jp, scameron@...rdog.cca.cpqcorp.net,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: RE: HP (Compaq) Smart Array 5xxx controller SCSI driver

On Thu, 24 Jul 2008 15:00:00 +0000
"Miller, Mike (OS Dev)" <Mike.Miller@...com> wrote:

> 
> > > As for the patches I mentioned which were previously ignored for
> > > improving how the current cciss SCSI code handled hot plogging, if
> > > you're curious about that, check here:
> > >
> > > http://marc.info/?l=linux-scsi&m=120213565000426&w=4
> > >
> > > A change like that becomes more important if logical drives are
> > > exposed through the scsi layer.
> >
> > We need to think about the best way to map (expose) logical
> > and physical drivers to SCSI luns. As I wrote before, I'm
> > interested in how HP SCSI driver does.
> 
> We don't neccesarily want or need to expose the physical disks. The only exception is disks that are not part of a logical volume. If the disks are part of a logical volume but exposed the user may shoot themselves in the foot by destroying the firmware metadata.

Oops, sorry, I meant physical tape drives.
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