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

Jiri Belka jbelka at redhat.com
Fri Apr 25 15:19:28 UTC 2014


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.



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