Re: [Qemu-devel] [RFC] introduce bitmap to bdrv_commit to trackdirtysector

2015-03-09 Thread Zhang Haoyu
On 2015-03-10 09:54:47, Fam Zheng wrote: On Tue, 03/10 09:30, Zhang Haoyu wrote: On 2015-03-10 08:29:19, Fam Zheng wrote: On Mon, 03/09 16:14, Zhang Haoyu wrote: Hi John, Vladimir We can using active block commit to implement incremental backup without guest disruption,

Re: [Qemu-devel] [RFC] introduce bitmap to bdrv_commit to trackdirtysector

2015-03-09 Thread Fam Zheng
Is it worthy to implement it? Maybe, I think once we start to assign node-name to each BDS in the tree, this will be natural to implement. And does qemu support commit any external snapshot to its backing file? Yes.