[Engine-devel] getDeviceList should report partitioned devices, too

Ayal Baron abaron at redhat.com
Wed Jan 18 11:17:53 UTC 2012


Can we broaden the scope and also allow passing createVG partitioned devices with an override flag or something? (we'd need to check the devices and run "kpartx -d" and fdisk to clean the devices before calling pvcreate).

----- Original Message -----
> On Tue, Jan 17, 2012 at 07:46:17PM +0200, Livnat Peer wrote:
> > On 17/01/12 16:08, Dan Kenigsberg wrote:
> > > On Sun, Jan 08, 2012 at 03:08:13PM +0200, Dan Kenigsberg wrote:
> > >> Hi Lists,
> > >>
> > >> One cannot create a PV on a partitioned device, and therefor
> > >> such
> > >> devices where not reported to Engine. This proved surprising to
> > >> users
> > >> who woder where their LUN disappeared.
> > >>
> > >> Vdsm should report all devices, and ovirt-engine should mark
> > >> partitioned
> > >> devices as unworthy of a PV. In the future, Vdsm may allow to
> > >> forcefully
> > >> remove a partition table from a device, to make it usable as a
> > >> PV.
> > >>
> > >> Douglas (CCed) would take resposibilty on the Vdsm side. Initial
> > >> patch at
> > >> http://gerrit.ovirt.org/944 sports a backword-compatible API.
> > >> Who's taking this
> > >> on Engine? This involves GUI, too, as partitioned devices should
> > >> probably be
> > >> displayed greyed-out.
> > > 
> > > Livnat, is there any taker for this on your side?
> > > 
> > > Since the change is backward-compatible, I would push it if there
> > > are no
> > > objections.
> > > 
> > > Dan.
> > 
> > Hi Danken,
> > 
> > How did you mark a partitioned device? (How will the engine will
> > spot
> > these LUNs)
> 
> Each device has a field 'partitioned'. Currently, Engine ignores it
> (as it is
> always False). With my little patch, devices with partitioned=True
> would be
> reported, too.
> 
> Dan.
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