[libvirt-users] RH6 qemu expects driver name

[Daniel P. Berrange]

On Thu, Mar 17, 2011 at 06:03:13PM +0100, Robert Šmol wrote:
> On 03/17/2011 12:17 PM, Daniel P. Berrange wrote:
> >On Wed, Mar 16, 2011 at 12:45:45PM +0100, Robert Šmol wrote:
> >>Hi,
> >>I am trying to start machine on RH6.
> >>
> >>virsh # start ulp-001
> >>error: Failed to start domain ulp-001
> >>error: internal error process exited while connecting to monitor:
> >>char device redirected to /dev/pts/1
> >>qemu-kvm: -device lsi,id=scsi0,bus=pci.0,addr=0x5: Parameter
> >>'driver' expects a driver name
> >This is a really terrible QEMU error message. What it actually
> >means is that LSI SCSI is not supported in this QEMU binary.
> >
> >Only IDE or VirtIO are supported block drivers in RHEL. No SCSI
> >and no USB
> >
> >Regards,
> >Daniel
> Hi, this is bad, we want to migrate some machines from VMWare, but
> internal scripts relly on /dev/sda to be present. Is the support for
> 'scsi' planned for RHEL6?

I expect it is fairly unlikely in the short term, since the QEMU code
has some significant problems in the SCSI area wrt both performance
and data integrity. VirtIO Block is going to be faster& more reliable,
and IDE is going to be more reliable too (not sure of speed of IDE vs
SCSI)

Daniel
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