Quantum vmPRO 4000 User's Guide download pdf (Page 100)

Chapter 2: vmPRO Setup and Configuration

vSphere Changed Block Tracking Support

Quantum vmPRO User’s Guide 87

Enable CBT for Virtual Machine (VMs)

You must enable CBT for each VM on which you are performing differential backups from the VMs

Console–VirtualMachines tab.

For detailed steps on how to enable CBT for VMs, see Modifying VM Settings from the vmPRO appliance.

Schedule a CBT Cycle Reset

By default, the CBT cycle is reset each Sunday at 03:30. At this point, the vmPRO appliance performs a full

backup of all CBT-enabled VMs. After the full disk backups complete, the vmPRO appliance performs

differential backups of the VMs until the next Sunday at 03:30.

If needed, you can modify the CBT reset schedule from the ConfigureFolders dialog box. In addition, after

CBT is enabled for a VM, you can perform a one-time, immediate reset of a base disk's modified time from

the appliance's VMware vSphere Client console. A base disk's modified time is the last time the

vmPRO appliance completed a full disk backup for the VM.

Note:Do not reset your CBT cycle to the same time at which backups are occurring. Instead, reset

your CBT cycle to start a few hours before your backups to ensure that all CBT-enabled VMs have

been reset before backups begin.

ModifyaCBTresetschedule

1. Click the VMs button to display the VMs Console.

2. Click the Folders tab to display the FoldersTab view.

3. In the Folders table, locate the folder that contains the VM for which to modify the CBT reset schedule.

For the appropriate folder, click to display the ConfigureFolder dialog box.

Figure72:Configure Folder Dialog Box

5. In the Time drop-down lists, select the hour and minute at which to reset the CBT schedule.

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Quantum vmPRO 4000 User's Guide Page 100