On 21/01/2015 11:32, Zhang Haoyu wrote: > Hi, > > Does drive_mirror support incremental backup a running vm? > Or other mechanism does? > > incremental backup a running vm requirements: > First time backup, all of the allocated data will be mirrored to destination, > then a copied bitmap will be saved to a file, then the bitmap file will log dirty for > the changed data. > Next time backup, only the dirty data will be mirrored to destination. > Even the VM shutdown and start after several days, > the bitmap will be loaded while starting vm. > Any ideas? Drive-mirror is for storage migration. For backup there is another job, drive-backup. drive-backup copies a point-in-time snapshot of one or more disks corresponding to when the backup was started. Incremental backup is being worked on. You can see patches on the list. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
