Jeff Garzik wrote:Arjan van de Ven wrote:On Fri, 2006-03-24 at 08:37 -0500, Jeff Garzik wrote:Talk about lots of overhead :)Jeff Garzik wrote:but there's a generic one for that: iSCSIIn 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.
so in theory you only need to provide a network driver then ;)
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? :)
Actually SRP (which T10 has now stopped working on) fits the bill very
nicely.