NetVault Plug-in for VMware 13.1.3

Enable CBT on specific virtual machines: To enable CBT on specific virtual machines, you can use the Enable Change Block Tracking method, which can be accessed from the from the context menu for the plug-in on the NetVault Selections page. This section describes the procedure for enabling CBT on individual virtual machines.

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Enable CBT on all virtual machines included in a backup: To enable tracking automatically on all virtual machines that are included in a backup job, you can set the backup option “Enable Changed Block Tracking for VM. For more information, see Enable Change Block Tracking for virtual machine.

To enable CBT on a virtual machine:

Start the Backup Job Wizard, and click

next to the Selections list.

Open the NetVault Client on which plug-in is installed, and then open VMware Plugin.

Open the ESXi or vCenter Server and the other applicable container nodes — for example, Datacenter, Cluster, Resource Pool, and other nodes — to display the target virtual machine.

Click the virtual machine, and select Enable Change Block Tracking from the context menu.

This option is available to only those virtual machines on which CBT is disabled.

After the virtual machine is reconfigured, a message is displayed. To close the dialog box, click OK.

Important notes

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To create the first Full Backup of a virtual machine with Changed Block Tracking enabled, the target virtual machine must be turned off to enable CBT. For more information, see http://kb.vmware.com/kb/1031873.

The virtual machine can be restarted when the backup job starts transferring data. During subsequent Full, Incremental, or Differential Backups, the virtual machine can remain turned on.

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At the time of enabling CBT, no snapshots should exist on the target virtual machine. For more information, see http://kb.vmware.com/kb/1033816.

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The reconfiguration of Changed Block Tracking takes effect only after the virtual machine goes through a stun and unstun cycle. This cycle includes power-on, resume after suspend, migrate, or snapshot create, delete, or revert operations.

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After you enable CBT for a virtual machine, all subsequent Full, Incremental, and Differential Backups are performed as CBT-based backups for that virtual machine. You do not have to enable CBT for each job.

Disabling CBT on a virtual machine

After you enable CBT on a virtual machine, all subsequent Full, Incremental, and Differential Backups are performed as CBT-based backups for that virtual machine. To stop using CBT, you must disable this feature.

Start the Backup Job Wizard, and click

next to the Selections list.

Open the NetVault Client on which plug-in is installed, and then open VMware Plugin.

Open the ESXi or vCenter Server and the other applicable container nodes — for example, Datacenter, Cluster, Resource Pool, and other nodes — to display the target virtual machine.

Click the virtual machine, and select Disable Change Block Tracking from the context menu.

This option is available to only those virtual machines on which CBT is enabled.

After the virtual machine is reconfigured, a message is displayed. To close the dialog box, click OK.


	NOTE: By default, the CBT is enabled when the VMs are backed up using CDP, and cannot be disabled. If CBT is disabled, it will be enabled when the VMs are backed up using CBT.