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From Andrija Panic <andrija.pa...@gmail.com>
Subject Re: Staging NFS to Swift traffic?
Date Mon, 11 May 2015 12:37:21 GMT
Thanks for the info Pierre !

1 Question thought - we are setting up Swift as Secondary - with new zone,
from scrath.

What is the proper order of steps - my understadning is as folowing:
- deploy normal NFS secondary storage
- wait for SSV/CPVM to be provisioned etc...
- call the API required to transform Sec NFS to Staging NFS and introduce
Swift.

Or can we just create Staging NFS and Swift - not sure if systemVM template
is going to be properly used to bring SSVM/CPVM... ?

Again, thanks for sharing your experience !


On 11 May 2015 at 14:20, Pierre-Luc Dion <pdion@cloudops.com> wrote:

> We use swift as Secondary Storage  with XenServer, did not test with KVM.
>
> So you need a staging NFS share that is used by the SSVM->hypervisor,
> staging NFS is used to temporary store template while creating a new
> Instance from a template.
>
> SSVM VM communicate to Swift via the MGT interface and probably via the
> storage interface if configured (I haven't test that). in the case of
> XenServer,  the Hypervisor interact directly with Swift to send volume
> snapshot directly to swift instead of interacting with the SSVM.
>
> Swift as secondary storage can only be used with the API  V1 with tempauth.
>
> There is some features that does not work well, as you need to turn off
> differential disk snapshot in Global Settings,  and the download percentage
> indicator is not working when importing ISO or Template from URL.
> also the extract template  download link is not working, but template can
> be download from Swift directly.
>
> I would suggest to do a lot of tests to make sure it work as your
> requirements.
>
>
>
> On Fri, May 8, 2015 at 4:55 AM, Andrija Panic <andrija.panic@gmail.com>
> wrote:
>
> > Thx Marcus - we might go than over Public S3/Swift URL - its all local
> > network and over 10G - so would work for us fine - I will check.
> >
> > Otherwise, I might trunk secondary storage network to Swift nodes as
> well,
> > so no routing, local attached swift&SSVM.
> >
> > Thanks again
> >
> >
> > On 8 May 2015 at 09:10, Marcus <shadowsor@gmail.com> wrote:
> >
> > > Looking at the code, it seems the SwiftImageStoreDriverImpl selects an
> > > SSVM(EndPoint) and issues a DownloadCommand to it. So the SSVM would
> need
> > > access to it, most likely via the public interface, but you could also
> > > probably get to it via the management interface via the
> > > 'secstorage.allowed.internal.sites'
> > > setting, similar to how the NFS template registration works.
> > >
> > > I'm not highly versed in the object storage, so perhaps someone who is
> > can
> > > verify or deny this.
> > >
> > > On Thu, May 7, 2015 at 11:31 PM, Andrija Panic <
> andrija.panic@gmail.com>
> > > wrote:
> > >
> > > > Yes, for that matter - I place question for any S3 style storage :)
> > > >
> > > > Just need some integration guidelines...
> > > >
> > > > Thx
> > > > On May 8, 2015 2:58 AM, "Marcus" <shadowsor@gmail.com> wrote:
> > > >
> > > > > Not entirely sure, but is there anything about the other object
> > > > stores(S3)?
> > > > > They should all work the same with NFS staging.
> > > > > On May 7, 2015 4:00 AM, "Andrija Panic" <andrija.panic@gmail.com>
> > > wrote:
> > > > >
> > > > > > Hi guys,
> > > > > >
> > > > > > I cant find any docs on this topic, so...posting a question
here.
> > > > > >
> > > > > > We are going to use Swift as region wide Secondary Storage.
> > > > > >
> > > > > > My understadning: KVM hosts will still move i.e. templates from
> > > Primary
> > > > > > Storage to Secondary NFS Staging storage - and then this template
> > > needs
> > > > > to
> > > > > > be moved to Swift.
> > > > > >
> > > > > > Question:
> > > > > >
> > > > > > Who/What is actually moving data from NFS Staging to Swift and
> over
> > > > what
> > > > > > path/network?
> > > > > >
> > > > > > Is SSVM moving data from NFS to Swift - if so, over what Network
> -
> > > does
> > > > > it
> > > > > > use Secondary Storage Gateway maybe, or not) - it certainly
does
> > not
> > > > use
> > > > > > default routing (over Public Network)
> > > > > >
> > > > > > Any hints - I need to enable some NFS-to-Swift connectivity
:)
> > > > > >
> > > > > > Thx,
> > > > > >
> > > > > > --
> > > > > >
> > > > > > Andrija Panić
> > > > > >
> > > > >
> > > >
> > >
> >
> >
> >
> > --
> >
> > Andrija Panić
> >
>



-- 

Andrija Panić

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