fuel-dev team mailing list archive

[Dmitry Borodaenko <dborodaenko@xxxxxxxxxxxx>]

Wrong: Cinder LVM is also a shared backend from the perspective of live
migration. In either case, Nova handles volume-backed instances differently
during live migration. The important distinction in this context is for
ephemeral disks: these will require block migration if local storage on
compute nodes is used instead of Ceph.


On Tue, Jun 24, 2014 at 5:30 AM, Bogdan Dobrelya <bdobrelia@xxxxxxxxxxxx>
wrote:

> On 06/12/2014 11:42 AM, Meg McRoberts wrote:
> > Hi, all,
> > I want to do some work on our docs about Storage.  Here are the main
> > pieces we have now:
> >
> >
> http://docs.mirantis.com/openstack/fuel/fuel-5.0/reference-architecture.html#storage-nodes
> >
> >
> http://docs.mirantis.com/openstack/fuel/fuel-5.0/reference-architecture.html#storage-architecture
> >
> > Also a few terminology articles that need more work.
> >
> > What I want to have:
> > - Section in the Planning Guide about choosing the storage deployment
> > - Section in the Reference Architecture that gives a view of how the
> various
> >   storage options work -- not quite as detailed as what is in the
> > individual docs
> >   for Ceph, Swift, Cinder, Glance, etc but just a bit of info.
> > Especially important
> >   is to document specifics about how Fuel implements storage
>
> We should also elaborate which storage backends Fuel deploys as a
> *shared* storage (Ceph) and which ones - as non shared (Cinder LVM).
> That is important for understanding then user could expect either the
> live migration or only live-block migration will work.
>
> > - If appropriate, a section in the Operations Guide about
> > advanced/specialized
> >   configurations and such one might want to implement.
> >
> > If anyone has any prose lying around that would be useful, I welcome
> > it.  I would
> > also be interested in hearing what the common questions are that people
> ask
> > and, of course, volunteers to review what I write.
> >
> > Thanks much!
> > meg
> >
> >
>
>
> --
> Best regards,
> Bogdan Dobrelya,
> Skype #bogdando_at_yahoo.com
> Irc #bogdando
>
> --
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-- 
Dmitry Borodaenko