On Fri, Feb 05, 2016 at 11:28:42AM +0300, Denis V. Lunev wrote:
On 02/03/2016 11:14 AM, Fam Zheng wrote:
On Sat, 01/30 13:56, Vladimir Sementsov-Ogievskiy wrote:
Hi all.
These series which aims to add external backup api. This is needed to allow
backup software use our dirty bitmaps.
Vmware and Parallels Cloud Server have this feature.
What is the advantage of this appraoch over "drive-backup sync=incremental
..."?
This will allow third-party vendors to backup QEMU VMs into
their own formats or to the cloud etc.
As an example, there is a third-party backup format called VMA from
Proxmox. A few years ago I posted a proof-of-concept external backup
tool in Python:
https://lists.gnu.org/archive/html/qemu-devel/2013-03/msg01536.html
It takes a full backup using drive-backup NBD (plus RAM/device state)
but the same can be done with incremental backups.
Does this NBD approach meet your requirements?
Stefan