From: Matteo Bertini <veb@freemail.it>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: Online image backup
Date: Thu, 22 Nov 2007 11:38:42 +0100 [thread overview]
Message-ID: <fi3m7j$7ch$1@ger.gmane.org> (raw)
In-Reply-To: <47436778.4060806@bellard.org>
Il 21-11-2007 0:02, Fabrice Bellard ha scritto:
> Matteo Bertini wrote:
>> Hello everyone,
>>
>> is there any support for an online image backup? Or some direction to
>> have it?
>>
>> Imagine I have an emulated server. How can I make an online backup of
>> the server state?
>>
>> If I'm right in the actual design this is very hard.
>>
>> Or there are some image internals update rules that permit a consistent
>> copy possible?
>
> It should not be difficult provided the VM is using the QEMU qcow2 image
> format (doing a backup can be seen as a kind of snapshot).
>
I have tested that is quite hard to corrupt an image, even copying
during a savevm, at least the last completely saved one is loadvm-able.
And that is good, but I didn't really undestand what appends at
filesystem level...
Am I somewhat granted that after a savevm and a copy (online) the image
is loadvm-able and the filesystem is back to the last saved state?
Thank you,
Matteo Bertini
prev parent reply other threads:[~2007-11-22 10:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-20 11:23 [Qemu-devel] Online image backup Matteo Bertini
2007-11-20 23:02 ` Fabrice Bellard
2007-11-22 10:38 ` Matteo Bertini [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='fi3m7j$7ch$1@ger.gmane.org' \
--to=veb@freemail.it \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.