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Re: [Qemu-devel] [RFC 0/8] block: Live backup prototype
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [RFC 0/8] block: Live backup prototype |
Date: |
Tue, 9 Apr 2013 13:10:17 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Apr 09, 2013 at 07:00:23PM +0800, address@hidden wrote:
> Is there already a plan to support the differential or incremental backups
> in this Live backup feature?
No, it has been mentioned but no design or patches have been proposed.
It seems like a persistent dirty bitmap would need to be implemented.
Today QEMU has code for dirty bitmaps but they are in-memory and not
persistent.
Stefan