403bb8185e
This test shows that external snapshots and incremental backups are friends. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-id: 20190517152111.206494-3-vsementsov@virtuozzo.com Signed-off-by: John Snow <jsnow@redhat.com>
53 lines
1.8 KiB
Python
Executable File
53 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Test external snapshot with bitmap copying.
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#
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# Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import iotests
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from iotests import qemu_img_create, file_path, log
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disk, top = file_path('disk', 'top')
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size = 1024 * 1024
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qemu_img_create('-f', iotests.imgfmt, disk, str(size))
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vm = iotests.VM().add_drive(disk, opts='node-name=base')
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vm.launch()
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vm.qmp_log('block-dirty-bitmap-add', node='drive0', name='bitmap0')
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vm.hmp_qemu_io('drive0', 'write 0 512K')
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vm.qmp_log('transaction', indent=2, actions=[
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{'type': 'blockdev-snapshot-sync',
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'data': {'device': 'drive0', 'snapshot-file': top,
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'snapshot-node-name': 'snap'}},
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{'type': 'block-dirty-bitmap-add',
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'data': {'node': 'snap', 'name': 'bitmap0'}},
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{'type': 'block-dirty-bitmap-merge',
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'data': {'node': 'snap', 'target': 'bitmap0',
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'bitmaps': [{'node': 'base', 'name': 'bitmap0'}]}}
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], filters=[iotests.filter_qmp_testfiles])
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result = vm.qmp('query-block')['return'][0]
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log("query-block: device = {}, node-name = {}, dirty-bitmaps:".format(
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result['device'], result['inserted']['node-name']))
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log(result['dirty-bitmaps'], indent=2)
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vm.shutdown()
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