Hyper-V disaster recovery

In the Hyper-V Environment, Microsoft provides three solutions for disaster recovery. Based on the traditional WindowsServerBackup, it provides SystemCenter-DataProtectionManager for data centers and WindowsAzureOnlineBackup based on public cloud services.

I. WindowsServerBackup

Windows Server backup is composed of Microsoft Management Console (MMC) management units, command line tools, and WindowsPowerShellcmdlet. It provides a complete solution for daily backup and recovery requirements. You can use WindowsServerBackup to back up all volumes on the server), select a volume, system status, or a specific file or folder, and create a backup for bare metal recovery. Restores volumes, folders, files, certain applications, and system states. In addition, bare metal recovery can be performed in the event of a disaster such as a hard disk failure. To perform this operation, you only need to back up the entire server or the volume that contains the operating system file and restore the Windows environment, this will restore the entire system to the old system or the new hard disk .)

Added and changed functions on the basis of WindowsServer2008R2 in WindowsServer2012: 1) backup and recovery of a single virtual machine from a Hyper-V host server: when you select the project to be backed up or restored, you can now select a single virtual machine to be included in the backup and restored from the recovery point; 2) Improvements to backup version and backup Retention Management: if you back up data to a hard disk or volume, you can specify a deletion policy to determine whether the backup should be deleted. If you only need to free up space for other backups, or if they need to delete a certain number of backups. 3) supports backing up volumes larger than 2 TB and disks with 4 K slice size; 4) supported cluster shared volumes (Csv) backup:) CSV bearer on the virtual machine cannot be added as part of the Backup configuration; B) Configure backup on the Windows server to ensure that all nodes of the backup are, recovery will be available when a cluster node fails; C) Volume recovery is not supported; D) the security access control list is not applicable to the CSV file service root. Therefore, file recovery from the root directory of the CSV volume is not supported.

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Ii. SystemCenter-DataProtectionManager: provides unified data protection for Windows servers and clients, this helps you deliver scalable, manageable, and cost-effective protection and restoration solutions from disks, tapes, and WindowsAzure. In SystemCenter2012DPM, You can protect virtual machines, virtual hosts, and VirtualMachineManager, DPM can protect 800 virtual machines and restore ILR at the entry level of each GB ). The administrator can restore the VM to the same host or different locations when restoring the VM, including: within the cluster, between different clusters, from the cluster to an independent running host, and vice versa. I will introduce the use of DMP in subsequent SystemCenter topics.

Iii. WindowsAzureOnlineBackup based on public cloud services: When the Administrator backs up a virtual machine to WindowsAzure, he must install WindowsAzureBackupAgent in WindowsServer2012 and WindowsServer2008R2SP1. You can download and install a scheduled backup file from your server to WindowsAzure. Now your enterprise has subscribed to WindowsAzure. If your enterprise has subscribed to WindowsAzure, you need to access the WindowsAzure Management Portal to download WindowsAzureBackupAgent.