EMC Proven Professional – PowerMax Solutions Expert — Question 4

A Dell EMC NetWorker backup administrator just installed a NetWorker Virtual Edition (NVE) server in their environment. The administrator wants to maximize performance of the NVE for initial backups.
Which configuration of the virtual disks will result in better initial performance?

Answer options

• A. Thin Provision
• B. Thick Provision Lazy Zeroed
• C. NFS datastore
• D. Thick Provision Eager Zeroed

Correct answer: D

Explanation

The correct choice, Thick Provision Eager Zeroed, pre-allocates all disk space and zeroes out the blocks, which improves performance during initial backups. Thin Provision and Thick Provision Lazy Zeroed can lead to performance overhead since they require additional processing during data writes. NFS datastore may not provide the same level of performance as a properly configured thick provisioned disk.