* How to write data to snapshot.
@ 2012-10-07 5:11 ramu eppa
2012-10-08 17:30 ` Tommi Virtanen
0 siblings, 1 reply; 6+ messages in thread
From: ramu eppa @ 2012-10-07 5:11 UTC (permalink / raw)
To: ceph-devel
Hi,
In rbd am creating snapshot and next time i copied data to that snapshot,
it was not copying the data.Please help me to how to copy data to snapshot.
Thanks,
Ramu.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to write data to snapshot.
2012-10-07 5:11 How to write data to snapshot ramu eppa
@ 2012-10-08 17:30 ` Tommi Virtanen
2012-10-09 6:56 ` ramu eppa
0 siblings, 1 reply; 6+ messages in thread
From: Tommi Virtanen @ 2012-10-08 17:30 UTC (permalink / raw)
To: ramu eppa; +Cc: ceph-devel
On Sat, Oct 6, 2012 at 10:11 PM, ramu eppa <ramu.freesystems@gmail.com> wrote:
> Hi,
> In rbd am creating snapshot and next time i copied data to that snapshot,
> it was not copying the data.Please help me to how to copy data to snapshot.
RBD snapshots are immutable by design. You can do a copy-on-write
clone of a snapshot to a writable image (in the latest Ceph version),
or just copy the contents into another image (in older Ceph versions).
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to write data to snapshot.
2012-10-08 17:30 ` Tommi Virtanen
@ 2012-10-09 6:56 ` ramu eppa
2012-10-09 17:37 ` Dan Mick
0 siblings, 1 reply; 6+ messages in thread
From: ramu eppa @ 2012-10-09 6:56 UTC (permalink / raw)
To: ceph-devel
Hi Tommi ,
If we convert snapshot into writable(mutable),we will copy data to that
snapshot and getting data multiple times,is it possible.
This will works on ceph-0.48 or any other version.
Thanks,
Ramu.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: How to write data to snapshot.
2012-10-09 6:56 ` ramu eppa
@ 2012-10-09 17:37 ` Dan Mick
2012-10-10 5:58 ` ramu eppa
0 siblings, 1 reply; 6+ messages in thread
From: Dan Mick @ 2012-10-09 17:37 UTC (permalink / raw)
To: ramu eppa; +Cc: ceph-devel
I'm not Tommi, but I'm not aware of a way to convert a snapshot into a
writable image. You can make a copy-on-write clone of a snapshot, which
is writable, but the snapshot remains readonly.
I don't know what the rest of your sentence means.
Are you trying to accomplish something in particular? Can you describe
that without suggesting a mechanism, and maybe we can help?
On 10/08/2012 11:56 PM, ramu eppa wrote:
> Hi Tommi ,
>
> If we convert snapshot into writable(mutable),we will copy data to that
> snapshot and getting data multiple times,is it possible.
> This will works on ceph-0.48 or any other version.
>
> Thanks,
> Ramu.
>
>
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-10-12 23:29 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-10-07 5:11 How to write data to snapshot ramu eppa
2012-10-08 17:30 ` Tommi Virtanen
2012-10-09 6:56 ` ramu eppa
2012-10-09 17:37 ` Dan Mick
2012-10-10 5:58 ` ramu eppa
2012-10-12 23:29 ` Dan Mick
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