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SubjectRe: Pe: [PATCH v5 1/3] virtio-scsi: first version
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Paolo Bonzini wrote:
> James, will you include virtio-scsi in 3.4?

The key arguments from my side for inclusion of virtio-scsi are:
- Support for SCSI multipathing, which can optionally be done on the host
operating system.
- We can now use other SCSI(non-block) devices and make them accessible to
the guest. For example we were able to virtualize a SCSI FCP tape using
virtio-scsi. One of the biggest constraints of virtio-block is that it is
limited to block devices, while virtio-scsi presents you with a more
generic solution.

So I consider virtio-scsi to be the cleaner approach to do virtualization
of SCSI commands. This is supported by the fact that virtio-block has a
maintenance problem and has to change its protocol from time to time to
support new features introduced by a new version of the SCSI standard.

So please consider including virtio-scsi into the mainline kernel tree.
This is good and conceptually clean code, and it has proven to work very
well in our internal testing.

Mit freundlichen Grüßen / Kind regards

Christian Hoff

Student - Applied Computer Science


Phone:
49-16098976-950
IBM Deutschland

E-Mail:
christian.hoff@de.ibm.com
Am Fichtenberg 1


71083 Herrenberg


Germany


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Geschäftsführung: Martina Koederitz (Vorsitzende), Reinhard Reschke,
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Sitz der Gesellschaft: Ehningen / Registergericht: Amtsgericht Stuttgart,
HRB 14562 / WEEE-Reg.-Nr. DE 99369940

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