> On Mon, Jan 27, 2014 at 02:50:04AM +0000, Qixiaozhen wrote: > > A instance was created by virsh command in the CentOS 6.4. > > > > The LUN in the Storage Array Network(SAN) was attached to the instance > with the following xml. > > > > <disk type='block' device='lun'> > > <driver name='qemu' type='raw' cache='none'/> > > <source > dev='/dev/mapper/360022a110000ecba5db427db00000023'/> > > <target dev='vdb' bus='virtio'/> > > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > > function='0x0'/> </disk> <controller type='scsi' model='virtio-scsi'/> > > > > > > A scsi report command was executed in the instance, for example "sg_luns > /dev/vdb". However, It returned the list of the Luns in the SAN. > > > > > > 1) The unrelated luns in the SAN were not isolated in the instance. > > [root@localhost ~]# sg_luns /dev/vdb > > Lun list length = 80 which imples 10 lun entries Report luns > > [select_report=0]: > > 0000000000000000 > > 0001000000000000 > > 0002000000000000 > > 0003000000000000 > > 0004000000000000 > > 0005000000000000 > > 0006000000000000 > > 0007000000000000 > > 0008000000000000 > > 0009000000000000 > > You are using virtio-blk with SCSI-passthrough, not virtio-scsi (it's > confusing but > libvirt type='block' device='lun' means virtio-blk). This feature has fallen > out of > favor and is generally best replaced with virtio-scsi instead of virtio-blk. > > If you do not require raw SCSI commands from the guest, then change > device='lun' to device='disk'. > > What exactly are you trying to do?
VMware document said that 'In physical mode, the VMkernel passes all SCSI commands to the device, with one exception: the REPORT LUNs command is virtualized so that the VMkernel can isolate the LUN to the owning virtual machine.' So I want to test the very RDM feature in Qemu. With Paolo's kindly help, a mistake was found in the configuration. Thanks for all your help. Sincerely,
