OK, well, depending on if we can or can't get a VMware person to chime in
on this issue, we may have to disallow disks from being detached from
VMware VMs with snapshots in 4.3.


On Tue, Nov 5, 2013 at 11:44 AM, SuichII, Christopher <
chris.su...@netapp.com> wrote:

> Correct.
>
> #6 FAILS with VMWare and SUCCEEDS with Xen
>
> --
> Chris Suich
> chris.su...@netapp.com
> NetApp Software Engineer
> Data Center Platforms – Cloud Solutions
> Citrix, Cisco & Red Hat
>
> On Nov 5, 2013, at 1:35 PM, Mike Tutkowski <mike.tutkow...@solidfire.com>
> wrote:
>
> > I assume 6 fails with VMware, as well?
> >
> > Is Xen OK with 6?
> >
> >
> > On Tue, Nov 5, 2013 at 11:26 AM, SuichII, Christopher <
> > chris.su...@netapp.com> wrote:
> >
> >> FWIW, after looking into this more with Xen, when the VM is restored in
> >> step 4, it simply no longer has the volume attached, so this appears to
> >> really be a VMWare issue. Any VMWare experts out there know how we can
> >> handle this?
> >>
> >> -Chris
> >> --
> >> Chris Suich
> >> chris.su...@netapp.com
> >> NetApp Software Engineer
> >> Data Center Platforms – Cloud Solutions
> >> Citrix, Cisco & Red Hat
> >>
> >> On Nov 5, 2013, at 1:05 PM, SuichII, Christopher <
> chris.su...@netapp.com>
> >> wrote:
> >>
> >>> We currently don’t allow volumes to be attached to VMs with snapshots
> >> and allowing volumes to be detached causes quite a bug:
> >>>
> >>> 1) Attach a data disk to a VM
> >>> 2) Snapshot the VM
> >>> 3) Detach the data disk
> >>> 4) Attempt to restore the VM from the snapshot — FAILS since the data
> >> disk is no longer there, although it is expected to be
> >>> 5) Attempt to re-attach the volume to the VM — FAILS since you cannot
> >> attach volumes to VMs with snapshots
> >>> 6) Attempt to delete the VM snapshot — FAILS since the data disk is no
> >> longer there, although it is expected to be
> >>>
> >>> I have verified the above steps on VMWare, however Xen does not appear
> >> to fail on step 4, presumably because VMWare handles snapshots quite
> >> differently than Xen.
> >>>
> >>> Does anyone else have any thoughts on whether this is a bug or not?
> IMO,
> >> on VMWare, this set of steps can get users into a state where they can
> no
> >> longer attach new data disks to their VM, so it appears to be a bug of
> some
> >> kind.
> >>>
> >>> -Chris
> >>> --
> >>> Chris Suich
> >>> chris.su...@netapp.com
> >>> NetApp Software Engineer
> >>> Data Center Platforms – Cloud Solutions
> >>> Citrix, Cisco & Red Hat
> >>>
> >>
> >>
> >
> >
> > --
> > *Mike Tutkowski*
> > *Senior CloudStack Developer, SolidFire Inc.*
> > e: mike.tutkow...@solidfire.com
> > o: 303.746.7302
> > Advancing the way the world uses the
> > cloud<http://solidfire.com/solution/overview/?video=play>
> > *™*
>
>


-- 
*Mike Tutkowski*
*Senior CloudStack Developer, SolidFire Inc.*
e: mike.tutkow...@solidfire.com
o: 303.746.7302
Advancing the way the world uses the
cloud<http://solidfire.com/solution/overview/?video=play>
*™*

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