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From: Anthony Liguori <anthony@codemonkey.ws>
In-Reply-To: <50517C05.3080708@redhat.com>
References: <1347382813-5662-1-git-send-email-Don@CloudSwitch.com>
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	<505081B4.8090301@redhat.com> <87392ngx69.fsf@codemonkey.ws>
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Date: Thu, 13 Sep 2012 08:14:56 -0500
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Subject: Re: [Qemu-devel] [PATCH] hw: Add support for new LSI Logic devices.
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Blue Swirl <blauwirbel@gmail.com>, Don Slutz <Don@cloudswitch.com>, qemu-devel@nongnu.org, "Michael S. Tsirkin" <mst@redhat.com>

Paolo Bonzini <pbonzini@redhat.com> writes:

> Il 12/09/2012 15:58, Anthony Liguori ha scritto:
>> Why would someone use this verses megasas vs. LSI vs virtio-scsi?
>
> LSI is dead.  Compare it to IDE.
>
> virtio-scsi has the highest performance, but it is not supported on all
> guests.  Compare it to virtio-blk.
>
> This vs. megasas is a good question; both can be compared to AHCI, they
> have good performance and have the advantage of compatibility with real
> hardware.  If this had gone in first, I would probably have rejected
> megasas, but this has the advantage of being used in VMware and
> VirtualBox.  Plus, unlike megasas Don said he'd work on SeaBIOS support,
> so it has further merit.

Okay.  Thanks.

Regards,

Anthony Liguori

>
> Paolo