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QEMU dirty-bitmap

Dear List,

Has anyone tried the dirty-bitmap solution to provide incremental backups on KVM/QEMU based CS clusters ?
The solution sounds pretty nice, but instance migration scenarios need additional task to copy the bitmaps.

Should we dig this subject and share, or is there any existing work on incremental backup for CS / KVM (using qemu bitmaps or any other feature), that we might join ?



Grégoire Lamodière
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