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

looks like libvirt should be able to do it with it's hostdev entries. http://libvirt.org/formatdomain.html#elementsHostDevSubsys <devices> <hostdev mode='subsystem' type='scsi'> <source> <adapter name='scsi_host0'/> <address type='scsi' bus='0' target='0' unit='0'/> </source> <readonly/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </hostdev> </devices> ...

On Sat, Apr 26, 2014 at 4:09 AM, Itamar Heim <iheim(a)redhat.com&gt; wrote: > On 04/25/2014 08:01 PM, Daniel Helgenberger wrote: >> >> >> 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(a)m-box.de&gt; 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. > > > i suggest you try making it work via libivrt first, then we can compare to > the xml passed to the guest, workaround with a custom hook, etc. > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users