Using VMware Data Recovery, backing up a VM created on a ESX3.5 host will take
longer than a VM created on a ESX4 host?

A.
True

B.
False

Explanation:
VMware Data Recovery Administration Guide Data Recovery 1.1, page 8.
For virtual machines created in vSphere 4.0, the Data Recovery appliance creates a
quiesced snapshot of the
virtual machine during the backup. The backups use the changed block tracking
functionality on the ESX hosts.
For each virtual disk being backed up, it checks for a prior backup of the virtual disk. It
uses the change-tracking functionality on ESX hosts to obtain the changes since the last
backup. The deduplicated store creates a virtual full backup based on the last backup
image and applies the changes to it.
NOTE These optimizations do not apply to virtual machines created with VMware
products prior to vSphere
4.0. For example, change tokens are not used with virtual machines created with Virtual
Infrastructure 3.5 or
earlier. As a result, virtual machines created with earlier VMware versions take longer to
back up