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[Xen-devel] Re: [RFC PATCH 35/35] Add Xen virtual block device driver.

Arjan van de Ven wrote:
On Fri, 2006-03-24 at 08:37 -0500, Jeff Garzik wrote:
Jeff Garzik wrote:
In fact, SCSI should make a few things easier, because the notion of host+bus topology is already present, and notion of messaging is already present, so you don't have to recreate that in a Xen block device infrastructure.
Another benefit of SCSI: when an IBM hypervisor in the Linux kernel switched to SCSI, that allowed them to replace several drivers (virt disk, virt cdrom, virt floppy?) with a single virt-SCSI driver.

but there's a generic one for that: iSCSI
so in theory you only need to provide a network driver then ;)

Talk about lots of overhead :)

OTOH, I bet that T10 is acting at high speed, right this second, to form a committee, and multiple sub-committees, to standardize SCSI transported over XenBus. SXP anyone? :)


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