Mailing-List: contact users-help@cloudstack.apache.org; run by ezmlm
Precedence: bulk
Reply-To: users@cloudstack.apache.org
MIME-Version: 1.0
Sender: technopathology@gmail.com
In-Reply-To: <0f43f94d1229462f943df8f26fcfa272@FTLPEX02CL06.citrite.net>
References: <CAOF26xTY9NTq1uxJpQDhDNBdL=hzdkG2Ze8XYLA1WoEJd7P_4A@mail.gmail.com>
	<0f43f94d1229462f943df8f26fcfa272@FTLPEX02CL06.citrite.net>
Date: Wed, 6 Jul 2016 16:35:15 -0500
Message-ID: <CAOF26xRuTqxA0rUJ_KT87b1YMsVFEoObXZtVCQ8rNh65NEWKEw@mail.gmail.com>
Subject: Re: Question about migrating local storage datadisks
From: Douglas Land <dsl@looprock.com>
To: "users@cloudstack.apache.org" <users@cloudstack.apache.org>
Content-Type: multipart/alternative; boundary=94eb2c07c964587c3e0536fe5820
archived-at: Wed, 06 Jul 2016 21:35:22 -0000

--94eb2c07c964587c3e0536fe5820
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Thanks Somesh, I'll try just moving the VM and see if it triggers a
datadisk migration.

Sorry, by 'bring up' I just meant migrate to a new host.

On Wednesday, July 6, 2016, Somesh Naidu <Somesh.Naidu@citrix.com> wrote:

> First off, for datadisks, you may not explicitly need to move them around=
.
> If you detach it from the existing VM and attach it to another VM
> (essentially the host running that VM) that does not have access to the
> storage where the datadisk currently resides, then cloudstack will copy t=
he
> datadisk to a storage accessible to that host.
>
> > I=E2=80=99m confused why we can=E2=80=99t snapshot a datadisk, which, i=
f I understand
> > correctly, should then get copied to secondary storage, and then bring =
it
> > up on another host. I hope I=E2=80=99m just missing something obvious.
>
> You can snapshot a datadisk and the snapshot will reside on the secondary
> store, that bit is straight/correct.
>
> I do not understand what you mean when you say "bring it up on another
> host".
> The part that is not clear is what does "bring it up" mean? Also, what yo=
u
> mean by "host", hypervisor or storage? Do you mean the datadisks are
> bootable and you want to start them on a different host? If so, know that
> you can't launch a VM directly off of a snapshot, you=E2=80=99d have to c=
onvert it
> to a template and then launch a VM from it. The VM could be launched on a=
ny
> host - if this is the use-case/scenario you had in mind then yes, you wil=
l
> achieve what you need this way.
>
> Regards,
> Somesh
>
>
> -----Original Message-----
> From: technopathology@gmail.com <javascript:;> [mailto:
> technopathology@gmail.com <javascript:;>] On Behalf Of Douglas Land
> Sent: Wednesday, July 06, 2016 3:03 PM
> To: users@cloudstack.apache.org <javascript:;>
> Subject: Question about migrating local storage datadisks
>
> We use local storage for everything, including datadisks. We need to
> migrate these to another host, which docs all seem to say isn=E2=80=99t s=
upported.
> I=E2=80=99m confused why we can=E2=80=99t snapshot a datadisk, which, if =
I understand
> correctly, should then get copied to secondary storage, and then bring it
> up on another host. I hope I=E2=80=99m just missing something obvious.
>

--94eb2c07c964587c3e0536fe5820--