[one-users] iSCSI one-target-per-vdisk TM driver release (was: Re: What kinds of shared storage are you using?)

[Shi Jin]

Excellent initiative.
I think the ecosystem would be a great place for this to go.
I am planning to take a closer look at this driver and will provide
feedback.

Shi

2010/9/16 Javier Fontan <jfontan at gmail.com>

> Hello,
>
> Thanks a lot for you effort. I am sure your development will be useful
> for lots of users. I think you should apply for an ecosystem account
> so these drivers are shown in the ecosystem catalog. You have more
> information about this here:
>
> http://opennebula.org/community:ecosystem
>
> Thanks again, bye
>
> 2010/9/16 Székelyi Szabolcs <szekelyi at niif.hu>:
> > On Friday 03 September 2010 15.13.55 Székelyi Szabolcs wrote:
> >> On Friday 03 September 2010 14.54.06 Ignacio M. Llorente wrote:
> >> > You could consider to contribute the new driver to our ecosystem
> >> > and/or write a post in our blog describing your customization.
> >>
> >> Our development is sponsored by the state, thus everything we develop
> will
> >> be open sourced, and so, it'd be an honour to contribute this to the
> >> OpenNebula ecosystem.
> >>
> >> This is an ongoing development, and the TM driver is just a small part
> of
> >> it. On the other hand, in our environment it has been quite stable for a
> >> couple of weeks now, so I think it's time to do an alpha release.
> >>
> >> I'll use the weekend to gather all its dependencies, wrap it up and
> write
> >> some docs about it. Expect a release in the beginning of next week.
> >
> > So finally it's out; please find it attached. Sorry for the delay.
> >
> > Please note that this is an alpha release, so I'm not sure that this
> should go
> > into the Ecosystem yet, first I'd like to hear a few reports on whether
> the
> > installation procedure worked and if it's complete. So anyone interested,
> > please test it!
> >
> > Thanks,
> > --
> > cc
> >
> >
> >> > On Fri, Sep 3, 2010 at 1:07 AM, Andreas Ntaflos <
> daff at pseudoterminal.org>
> >>
> >> wrote:
> >> > > On Friday 03 September 2010 00:28:23 Székelyi Szabolcs wrote:
> >> > >> We're using iSCSI targets directly (one target per vm),
> automatically
> >> > >> created and initialized (cloned) from images on vm deploy. Althogh
> >> > >> the target is based on IET behind gigabit links, it works quite
> >> > >> well: we haven't done performance benchmarks (yet), but the
> >> > >> installation time of virtual machines is kinda same than on real
> >> > >> hardware.
> >> > >
> >> > > That sounds interesting and very similar to what we hope to achieve
> >> > > using OpenNebula and a central storage server (as I've posted a few
> >> > > hours ago, not realising this thread here is very similar in
> nature).
> >> > >
> >> > >> We developed a custom TM driver for this, because this approach
> makes
> >> > >> live migration trickier, since just before live migration the
> target
> >> > >> host needs to log in to the iSCSI target hosting the disks of the
> >> > >> vm, and this is something ONE can't do, so we used libvirt hooks to
> >> > >> do this -- works like a charm. Libvirt hooks are also good for
> >> > >> reattaching virtual machines to their virtual networks on live
> >> > >> migration -- again something ONE doesn't do.
> >> > >
> >> > > Would you care to go into a little detail regarding your custom TM
> >> > > driver? Maybe even post the sources? I'd be very interested in
> learning
> >> > > more about your approach to this.
> >> > >
> >> > > Thanks!
> >> > >
> >> > > Andreas
> >> > > --
> >> > > Andreas Ntaflos
> >> > >
> >> > > GPG Fingerprint: 6234 2E8E 5C81 C6CB E5EC  7E65 397C E2A8 090C A9B4
> >> > >
> >> > > _______________________________________________
> >> > > Users mailing list
> >> > > Users at lists.opennebula.org
> >> > > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
> >>
> >> _______________________________________________
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> >
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> >
> >
>
>
>
> --
> Javier Fontan, Grid & Virtualization Technology Engineer/Researcher
> DSA Research Group: http://dsa-research.org
> Globus GridWay Metascheduler: http://www.GridWay.org
> OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org
> _______________________________________________
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>



-- 
Shi Jin, Ph.D.
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