Re: [Qemu-discuss] One question about "drive-backup"

2018-08-22 Thread David Lee
Thank you, Fam. I did the following, and this time QEMU doesn't complain anything. But what's the semantics of omitting the "bitmap" parameters? And, how to continue with incremental backups after that? If I repeat the snippet below, there will be error message: {"id":"libvirt-381290","error":{"c

Re: [Qemu-discuss] One question about "drive-backup"

2018-08-22 Thread David Lee
On Wed, Aug 22, 2018 at 11:41 PM David Lee wrote: > If I repeat the snippet below, there will be error message: > {"id":"libvirt-381290","error":{"class":"GenericError","desc":"Need a > root block node"}} > > What's happening? I guess it is because the previous backup jobs were still in progress.

Re: [Qemu-discuss] One question about "drive-backup"

2018-08-22 Thread Fam Zheng
On Wed, 08/22 22:20, David Lee wrote: > Hi, list > > I was trying "drive-backup" for incremental backups, and so far so > good for individual drives. > The question is that, when I grouped the drive-backup into a > transaction, I got errors like: > > {"id":"libvirt-377183","error":{"class":"Gener

[Qemu-discuss] One question about "drive-backup"

2018-08-22 Thread David Lee
Hi, list I was trying "drive-backup" for incremental backups, and so far so good for individual drives. The question is that, when I grouped the drive-backup into a transaction, I got errors like: {"id":"libvirt-377183","error":{"class":"GenericError","desc":"a sync_bitmap was provided to backup_