[ovirt-users] Using Virtio-SCSI passthough on SCSI - Devices

[Daniel Helgenberger]

On Fr, 2014-04-25 at 17:19 +0200, Jiri Belka wrote:
> On Fri, 25 Apr 2014 13:40:09 +0000
> Daniel Helgenberger <daniel.helgenberger at m-box.de> wrote:
> 
> > Hello,
> > 
> > does anyone have an idea on how to accomplish this? In my particular
> > setup, I need a FC tape drive passed though to the vm.
> > Note, passing throuh FC - LUNs works flawlessly. 
> > 
> > If I understood Virtio -SCSI correctly, this should be possible from
> > libvirt's part.
> 
> I can be wrong but my understanding is that dm-mpio works on block
> layer thus it does not support multipath for tapes/cd-devices.
> 
> But I could be wrong, I got this info from an OpenBSD paper comparing
> SCSI multipath implementation.
> 
> j.
No, I think so too - it does not support tape drive as such (but I could
set up a tape library as a LUN to use it with LTFS for instance)

The point being is another. VirtIO SCSI should be able to pass through
any scsi device; like tape drives end enclosures. I know this works in
Proxmox: http://pve.proxmox.com/wiki/Tape_Drives

Does it work in oVirt, too? In the GUI I only see block LUNs from DM.

-- 

Daniel Helgenberger 
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