Re: [libvirt] [RFC PATCH 0/4] Add new function about block backup
On 16/6/9 下午7:22, Maxim Nestratov wrote:
08.06.2016 9:21, Rudy Zhang пишет:
> Add new function about block backup, it supports the drive-backup
> function
> in qemu, it supports three modes: full, top, incremental.
>
> How to use it? As usual, we must do the full backup at first, if it's
> successfull, next time, we can do the incremental backup, because it has
> the bitmap to trace the dirty io. The incermental backup is faster.
> If backup fail at some time, we must do the full backup again, only in
> this
> way, we can keep the backup data correctly.
Hi Rudy,
A couple of months ago I started a thread regading backup API and we
came to a sort of agreement on how it should look like, see [1].
Though it's not ready yet for sending to mailing list I already started
to work on it and I will certainly send first reference implementation
shortly.
Once it appears in the list I will appriciate any help. ETA - end of
this month.
Best,
Maxim
[1] https://www.redhat.com/archives/libvir-list/2016-April/msg00401.html
Hi Maxim,
I have not noticed your idea about backup API before.I did this, only
want to use backup function in openstack, so in libvirt I just have
implemented the easiest interface function to qemu. I will be careful to
know your idea, and then send my v2 patch, or wait for your patch.
--
Best regards,
Rudy Zhang
> Rudy Zhang (4):
> Introduce virDomainBlockBackup API
> qemu drive support block backup.
> virsh: support blockbackup in virsh command
> libvirt-test: libvirt test supports drive-backup
>
> docs/apibuild.py | 3 +-
> include/libvirt/libvirt-domain.h | 15 ++
> src/conf/domain_conf.h | 12 ++
> src/driver-hypervisor.h | 9 +
> src/libvirt-domain.c | 56 ++++++
> src/libvirt_public.syms | 5 +
> src/qemu/qemu_blockjob.c | 2 +
> src/qemu/qemu_capabilities.c | 4 +
> src/qemu/qemu_capabilities.h | 5 +
> src/qemu/qemu_driver.c | 197
> +++++++++++++++++++++
> src/qemu/qemu_monitor.c | 59 ++++++
> src/qemu/qemu_monitor.h | 23 +++
> src/qemu/qemu_monitor_json.c | 124 +++++++++++++
> src/qemu/qemu_monitor_json.h | 23 +++
> src/remote/remote_driver.c | 1 +
> src/remote/remote_protocol.x | 17 +-
> src/remote_protocol-structs | 9 +
> tests/qemucaps2xmldata/all_1.6.0-1.caps | 1 +
> tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.caps | 1 +
> tools/virsh-domain.c | 149
> ++++++++++++++++
> 20 files changed, 713 insertions(+), 2 deletions(-)
>