On Mon, Sep 02, 2013 at 05:38:42PM +0800, Guannan Ren wrote: > usb-bot only supports 16 luns(0~15) and they must be contiguous, > (using lun 0 and 2 without 1 doesn't work). In this case qemu > doesn't throw an error, we can not find the lun 2 in guests. So > Adding a checking function in libvirt to prevent from this case. Hmm, this seems like a problematic restriction. How does this work if we start off a guest with 3 disks attached to the usb-bot SCSI controller. Then hot-unplug the 2nd disk. Next time we need will need to start with with LUNs 0 and 2 populated only, otherwise we have ABI change upon migrate or save/restore. I think this restriction about contiguous luns must be removed if this device is to be usable with multiple luns. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list