From: Gerd Hoffmann <kraxel@redhat.com>
To: Gerhard Wiesinger <lists@wiesinger.com>
Cc: Brian Jackson <iggy@theiggy.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] XP install cores with SCSI LSI 53C895A disks
Date: Thu, 08 Mar 2012 08:44:05 +0100 [thread overview]
Message-ID: <4F586345.8010905@redhat.com> (raw)
In-Reply-To: <alpine.LFD.2.02.1203072041440.30263@bbs.intern>
On 03/07/12 20:58, Gerhard Wiesinger wrote:
> On Wed, 7 Mar 2012, Brian Jackson wrote:
>> I think most people trying to use qemu for anything useful have given
>> up on if=scsi. Some distros even disable support because they don't
>> want to QA it. That should be a decent sign that you may want to avoid
>> it.
>
> OK, but SAS (Serial attached SCSI) is technology in the area of storage
> interface technology where all big storage vendors see future (e.g. they
> give up: FC and SATA drives, SATA drives are replaced by MDL SATA drives
> (SATA 7200RPM drives with SAS interface)).
The problem isn't scsi. The problem is the lsi adapter. Problem #1 is
the hardware design which makes it hard to emulate it correctly and #2
that you need a non-redistributable rom file to boot from it.
> Therefore I don't understand why distros are giving up SAS which is also
> SCSI (of course old legacy SCSI is understandable).
Nobody gives up on scsi. See virtio-scsi merged recently. There also
is megasas aiming for merge (which shares the boot issue with lsi though).
cheers,
Gerd
next prev parent reply other threads:[~2012-03-08 7:44 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-04 20:13 [Qemu-devel] XP install cores with SCSI LSI 53C895A disks Gerhard Wiesinger
2012-03-07 6:41 ` Gerhard Wiesinger
2012-03-07 14:51 ` Brian Jackson
2012-03-07 19:58 ` Gerhard Wiesinger
2012-03-08 7:44 ` Gerd Hoffmann [this message]
2012-03-08 8:54 ` Michael Tokarev
2012-03-08 10:07 ` Gerd Hoffmann
2012-03-09 6:28 ` Gerhard Wiesinger
2012-03-09 7:20 ` Gerd Hoffmann
2012-03-09 7:46 ` Gerhard Wiesinger
2012-03-09 8:08 ` Paolo Bonzini
2012-03-09 6:25 ` Gerhard Wiesinger
2012-03-09 6:18 ` Gerhard Wiesinger
2012-03-09 7:35 ` Gerd Hoffmann
2012-03-09 8:00 ` Paolo Bonzini
2012-03-09 11:50 ` Kevin O'Connor
2012-03-09 16:48 ` Brian Jackson
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