Il 20/08/2013 12:42, Timon Wang ha scritto: > [root@localhost /]# ls -l /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk > lrwxrwxrwx. 1 root root 8 8月 20 17:38 > /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk -> ../dm-13 > [root@localhost /]# sg_inq /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk > standard INQUIRY: > PQual=0 Device_type=0 RMB=0 version=0x05 [SPC-3] > [AERC=0] [TrmTsk=0] NormACA=0 HiSUP=0 Resp_data_format=0 > SCCS=1 ACC=0 TPGS=1 3PC=0 Protect=0 [BQue=0] > EncServ=0 MultiP=0 [MChngr=0] [ACKREQQ=0] Addr16=0 > [RelAdr=0] WBus16=1 Sync=1 Linked=0 [TranDis=0] CmdQue=1 > length=36 (0x24) Peripheral device type: disk > Vendor identification: MacroSAN > Product identification: LU > Product revision level: 1.0 > Unit serial number: 0d9281ae-aea4-6da0-0000-02180142b300 > > This lun is from a vg build based on iscsi target. If it is a logical volume, you cannot pass it as a LUN to the guest. Only the whole iSCSI LUN can be passed as a LUN. Paolo > [root@localhost /]# libvirtd --version > libvirtd (libvirt) 1.0.5 > [root@localhost /]# qemu-kvm --version > QEMU emulator version 1.4.1, Copyright (c) 2003-2008 Fabrice Bellard > [root@localhost /]# uname -a > Linux localhost.localdomain 3.9.2-301.fc19.x86_64 #1 SMP Mon May 13 > 12:36:24 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux > > > On Tue, Aug 20, 2013 at 6:16 PM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: >> Il 20/08/2013 11:59, Timon Wang ha scritto: >>> On Tue, Aug 20, 2013 at 4:33 PM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: >>>> Il 20/08/2013 08:00, Timon Wang ha scritto: >>>>> <disk type='file' device='disk'> >>>>> <driver name='qemu' type='raw' cache='none'/> >>>>> <source file='/home/images/win2008_2_sys'/> >>>>> <target dev='hda' bus='ide'/> >>>>> <boot order='3'/> >>>>> <address type='drive' controller='0' bus='0' target='0' unit='0'/> >>>>> </disk> >>>>> <disk type='file' device='cdrom'> >>>>> <driver name='qemu' type='raw'/> >>>>> <source file='/home/isos/windows2008_64r2.iso'/> >>>>> <target dev='sdc' bus='ide'/> >>>>> <readonly/> >>>>> <boot order='1'/> >>>>> <address type='drive' controller='0' bus='1' target='0' unit='0'/> >>>>> </disk> >>>>> <disk type='block' device='disk'> >>>> >>>> I'm not sure this will be enough, but if you want passthrough to the >>>> host device you should use device='lun' here. However, you still would >>>> not be able to issue SCSI reservations unless you run QEMU with the >>>> CAP_SYS_RAWIO capability (using "<disk ... rawio='yes'>"). >>>> >>> >>> After change the libvirt xml like this: >>> <disk type='block' device='lun' rawio='yes'> >>> <driver name='qemu' type='raw' cache='none'/> >>> <source dev='/dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk'/> >>> <target dev='sda' bus='scsi'/> >>> <shareable/> >>> <address type='drive' controller='0' bus='0' target='0' unit='0'/> >>> </disk> >>> I got these errors: >>> char device redirected to /dev/pts/1 (label charserial0) >>> qemu-system-x86_64: -device >>> scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0: >>> scsi-block: INQUIRY failed >>> qemu-system-x86_64: -device >>> scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0: >>> Device 'scsi-block' could not be initialized >> >> Can you do >> >> # ls -l /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk >> # sg_inq /dev/VM-IMAGES-BACKUP-DO-NOT-REMOVE/q_disk >> >> ? >> >> Paolo >> > > > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
