An existing EMC NetWorker customer has been backing up their VMware environment using
VMDKs to a CIFS-attached EMC Data Domain system. Recently, they have added another 80 TB
to their primary VM storage. While their deduplication rates have exceeded expectations, they are
starting to overrun their backup window.
Which solution compliments their existing infrastructure?
A.
Introduce a VTL configuration to the Data Domain system and transfer data over Fibre Channel
B.
Add additional NetWorker storage nodes into the backup environment
C.
Switch the NetWorker VMDK configuration to a NetWorker guest client configuration
D.
Use Change Block Tracking on the VMware side and introduce DD Boost into the NetWorker
and Data Domain configuration
I believe this should be “D” Use Change Block Tracking on the VMware side and introduce DD Boost into the NetWorker
and Data Domain configuration?
“NetWorker supports the use of Changed Block Tracking (CBT) with ESX 4.0 or later hosts with Virtual Hardware 7. On a virtual machine, the virtual disk block changes are tracked from outside of the virtual machine in the virtualization layer. When a backup is performed, NetWorker leverages CBT to quickly determine which files have changes since the last backup, and backup only those files.” p61 Network Solutions Design
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