Il 17/07/2012 10:40, James Bottomley ha scritto: >> > >> > It's not specific to virtio-scsi, in fact I expect that virtio-scsi will >> > be almost always used with non-removable disks. >> > >> > However, QEMU's SCSI target is not used just for virtio-scsi (for >> > example it can be used for USB storage), and it lets you mark a disk as >> > removable---why? because there exists real hardware that presents itself >> > as an SBC removable disk. The only thing that is specific to >> > virtualization, is support for online resizing (which generates a unit >> > attention condition CAPACITY DATA HAS CHANGED). > So what's the problem? If you're doing pass through of a physical disk, > we pick up removable from its inquiry string ... a physical removable > device doesn't get resized. If you have a virtual disk you want to > resize, you don't set the removable flag in the inquiry data.
In practice people will do what you said, and it's not a problem. However, there's nothing that prevents you from running qemu with a removable SCSI disk, and then resizing it. I would like this to work, because SBC allows it and there's no reason why it shouldn't. Paolo -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
