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Re: [Qemu-devel] [question] incremental backup a running vm
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [question] incremental backup a running vm |
Date: |
Wed, 21 Jan 2015 11:39:44 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 |
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
- [Qemu-devel] [question] incremental backup a running vm, Zhang Haoyu, 2015/01/21
- Re: [Qemu-devel] [question] incremental backup a running vm,
Paolo Bonzini <=
- Re: [Qemu-devel] [question] incremental backup a running vm, Kashyap Chamarthy, 2015/01/23
- Re: [Qemu-devel] [question] incremental backup a running vm, Kashyap Chamarthy, 2015/01/23
- Re: [Qemu-devel] [question] incremental backup a running vm, Zhang Haoyu, 2015/01/25
- Re: [Qemu-devel] [question] incremental backup a running vm, Paolo Bonzini, 2015/01/26
- Re: [Qemu-devel] [question] incremental backup a running vm, Zhang Haoyu, 2015/01/26
- Re: [Qemu-devel] [question] incremental backup a running vm, Paolo Bonzini, 2015/01/26
- Re: [Qemu-devel] [question] incremental backup a running vm, Zhang Haoyu, 2015/01/26