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From Lee Webb <nullify...@gmail.com>
Subject Re: AW: Shared Storage for VMs
Date Tue, 16 Dec 2014 02:52:09 GMT
On 15/12/2014 6:45 PM, "Jochim, Ingo" <Ingo.Jochim@bautzen-it.de> wrote:
>
> Hello Lee,
>
> thanks for sharing your ideas.
> In this scenario someone needs to administer the NAS and handle all
requests, right?

Yes, that's correct

>
> In the case you have a little VM which shares the storage then all
traffic will go through this VM and not directly to the storage.

Also correct.

If your using a physical vlan and shared network then this can be a
physical nas or San device though - this is what I'm doing at the moment

>
> Is there a standard to communicate to different storage systems for
managing volumes/shares?

I'm not aware of one used to manage storage devices.

The underlying protocols to access the storage are standard though
depending on what you choose (nfs, iscsi etc)

If you want customers to manage their own acls etc in a vm then something
like an open filer template might be perfect and allows them to use
allocated cs resources normally

>
> Regards,
> Ingo
>
> -----Urspr√ľngliche Nachricht-----
> Von: Lee Webb [mailto:nullify005@gmail.com]
> Gesendet: Samstag, 13. Dezember 2014 02:46
> An: users@cloudstack.apache.org
> Betreff: Re: Shared Storage for VMs
>
> I have this requirement for some of the applications deployed in CS too
>
> Workaround solution (of sorts) was to create a Shared Network attached to
a Physical VLAN & then hook up a Physical NAS to the same VLAN.
> The shared network is bound to a particular account / project so that it
can't be used by everyone
>
> For me part of the attraction of using CS over OpenStack was that you
could craft the network in this way so that you an support applications /
deployments which have physical device requirements or haven't been
developed to be 100% cloudy.
>
> I notice that OpenStack is looking into a shared volume system, & I'd
also like the option of doing it 100% inside of CS if it was capable of
doing so.
>
> I do recall though that in XenServer (& ESX 4 I think) it wasn't possible
to attach a single volume to multiple machines without significant hacking
of the underlying Python - after which building things like an Oracle RAC /
GRID system or OCFS2 was possible but this is probably out of reach for
most users.
>
> Perhaps something like a Virtual NAS VM like the Virtual Routers etc.
would be sufficient - think OpenFiler but inside of CS?
>
> On Fri, Dec 12, 2014 at 10:10 PM, Jochim, Ingo <Ingo.Jochim@bautzen-it.de>
> wrote:
> >
> > But this is completely outside of CS. I prefer to have something
> > controlled by CS to have centralized management and quota/usage
> > functionality.
> >
> > -----Urspr√ľngliche Nachricht-----
> > Von: Alessandro Caviglione [mailto:c.alessandro@gmail.com]
> > Gesendet: Freitag, 12. Dezember 2014 11:44
> > An: users@cloudstack.apache.org
> > Betreff: Re: Shared Storage for VMs
> >
> > Just use a Unified Storage and export volumes to VMs...
> >
> > On Fri, Dec 12, 2014 at 11:39 AM, Andrija Panic
> > <andrija.panic@gmail.com>
> > wrote:
> >
> > > Drbd and gfs2 or something?
> > >
> > > Sent from Google Nexus 4
> > > On Dec 12, 2014 10:00 AM, "Jochim, Ingo" <Ingo.Jochim@bautzen-it.de>
> > > wrote:
> > >
> > > > Hi all,
> > > >
> > > > I'd like to discuss my feature request for having shared storage
> > > > for several virtual machines controlled by ACS.
> > > > https://issues.apache.org/jira/browse/CLOUDSTACK-7970
> > > > Any ideas about this? Are there workarounds which I can used today?
> > > >
> > > > Many thanks in advance.
> > > > Regards,
> > > > Ingo
> > > >
> > >
> >
> > --
> > This email was Virus checked by Astaro Security Gateway.
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> >
>
> --
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