70-659 · Question #92
A company has servers that run Microsoft System Center Virtual Machine Manager (VMM) 2008 R2, System Center Data Protection Manager (DPM) 2010, and Windows Server 2008 R2 with Hyper-V. A Hyper-V host
The correct answer is C. Perform an offline backup by using DPM.. Conditions When DPM Fails to Back up Hyper-V Virtual Machines in an Online State By default, DPM 2010 performs a backup of a Hyper-V Virtual Machine (VM) in an online state. However, DPM cannot back up a Hyper-V VM in an online state, if one or more of the following conditions ar
Question
A company has servers that run Microsoft System Center Virtual Machine Manager (VMM) 2008 R2, System Center Data Protection Manager (DPM) 2010, and Windows Server 2008 R2 with Hyper-V. A Hyper-V host has a virtual machine (VM) that uses a dynamic disk. You need to perform a backup of the VM configuration and its virtual hard disk. What should you do?
Options
- APerform an online backup by using DPM.
- BPerform a VMM database backup by using VMM.
- CPerform an offline backup by using DPM.
- DPerform a system state backup by using Windows Server Backup.
How the community answered
(24 responses)- A13% (3)
- B4% (1)
- C79% (19)
- D4% (1)
Explanation
Conditions When DPM Fails to Back up Hyper-V Virtual Machines in an Online State By default, DPM 2010 performs a backup of a Hyper-V Virtual Machine (VM) in an online state. However, DPM cannot back up a Hyper-V VM in an online state, if one or more of the following conditions are true: Backup (Volume Snapshot) Integration Service is disabled or not installed. VM has one or more dynamic disks. VM has one or more non-NTFS based volumes. The VM Cluster Resource Group in a cluster setup is offline. VM is not in a running state. A ShadowStorage assignment of a volume inside the VM is explicitly set to a different volume other than itself. These conditions are set by the Hyper-V writer. In such a case, the VM is put in a saved state before a snapshot of host volumes are taken (except when the VM is turned off) for a backup. The Hyper-V writer adds the VM in the following format: For offline backups: Backup Using Saved State<VMName> For online backups: Backup Using Child Partition Snapshot<VMName> Note During offline/online backups, the name of the data source remains unchanged even if the VM configuration changes to support online backups or for any further backups.
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