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
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(-)