From: Kevin Wolf <kwolf@redhat.com>
To: Dietmar Maurer <dietmar@proxmox.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [RFC 0/8] block: Live backup prototype
Date: Tue, 12 Mar 2013 10:18:12 +0100 [thread overview]
Message-ID: <20130312091812.GD2267@dhcp-200-207.str.redhat.com> (raw)
In-Reply-To: <24E144B8C0207547AD09C467A8259F7557B301F0@lisa.maurer-it.com>
Am 10.03.2013 um 10:57 hat Dietmar Maurer geschrieben:
> > The difference between this approach and Dietmar's series is that the backup
> > archive format is implemented outside QEMU and runs as a separate program.
> >
> > This way, management tools like proxmox, oVirt, OpenStack, and others can
> > provide their preferred backup archive formats without modifying QEMU.
>
> So you propose that everyone should use another backup format - this is a bad thing because
> it lead to interoperability problems (vendor lock-in?)
Maybe we could consider having the backup tool inside the qemu.git tree
and thus provide a common format that management applications can choose
to use, but still have it implemented outside the qemu process running
the VM.
I'm still not totally against having the VMA writer even inside the qemu
process, but only as an option. The important part for me is being able
to backup into _any_ BlockDriverState.
Kevin
next prev parent reply other threads:[~2013-03-12 9:18 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-09 22:22 [Qemu-devel] [RFC 0/8] block: Live backup prototype Stefan Hajnoczi
2013-03-09 22:22 ` [Qemu-devel] [RFC 1/8] block: add virtual_size to query-block QMP output Stefan Hajnoczi
2013-03-11 17:35 ` Eric Blake
2013-03-09 22:22 ` [Qemu-devel] [RFC 2/8] add basic backup support to block driver Stefan Hajnoczi
2013-03-09 22:22 ` [Qemu-devel] [RFC 3/8] backup: write to BlockDriverState instead of BackupDumpFunc Stefan Hajnoczi
2013-03-10 10:05 ` Dietmar Maurer
2013-03-10 11:13 ` Stefan Hajnoczi
2013-03-09 22:22 ` [Qemu-devel] [RFC 4/8] block: add block_backup QMP command Stefan Hajnoczi
2013-03-14 21:46 ` Eric Blake
2013-03-14 21:52 ` Eric Blake
2013-03-15 8:38 ` Stefan Hajnoczi
2013-04-11 12:32 ` Paolo Bonzini
2013-03-09 22:22 ` [Qemu-devel] [RFC 5/8] Add nbd server Python module Stefan Hajnoczi
2013-03-09 22:22 ` [Qemu-devel] [RFC 6/8] Add VMA backup archive writer " Stefan Hajnoczi
2013-03-09 22:22 ` [Qemu-devel] [RFC 7/8] Add vma-writer.py tool Stefan Hajnoczi
2013-03-09 22:22 ` [Qemu-devel] [RFC 8/8] Add backup.py tool Stefan Hajnoczi
2013-03-10 9:14 ` [Qemu-devel] [RFC 0/8] block: Live backup prototype Dietmar Maurer
2013-03-10 10:19 ` Stefan Hajnoczi
2013-03-10 10:38 ` Dietmar Maurer
2013-03-10 11:09 ` Stefan Hajnoczi
2013-03-10 10:50 ` Dietmar Maurer
2013-03-10 11:10 ` Stefan Hajnoczi
2013-03-11 8:58 ` Dietmar Maurer
2013-03-11 9:26 ` Dietmar Maurer
2013-03-11 14:27 ` Stefan Hajnoczi
2013-03-11 15:00 ` Dietmar Maurer
2013-03-11 17:11 ` Stefan Hajnoczi
2013-03-10 9:57 ` Dietmar Maurer
2013-03-10 10:41 ` Stefan Hajnoczi
2013-03-12 9:18 ` Kevin Wolf [this message]
2013-03-12 10:50 ` Stefan Hajnoczi
2013-03-12 11:15 ` Dietmar Maurer
2013-03-12 12:18 ` Stefan Hajnoczi
2013-03-12 11:22 ` Kevin Wolf
2013-03-12 11:31 ` Dietmar Maurer
2013-03-12 11:37 ` Dietmar Maurer
2013-03-12 12:17 ` Stefan Hajnoczi
-- strict thread matches above, loose matches on Subject: below --
2013-04-09 11:00 zhangleiqiang
2013-04-09 11:10 ` Stefan Hajnoczi
2013-04-09 15:34 ` Dietmar Maurer
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