EMC Proven Professional – PowerMax Specialist — Question 148

When deploying virtual disks for a UnityVSA system, what is an EMC recommended Disk Provision Policy?

Answer options

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

Correct answer: A

Explanation

The correct answer is A, Thick Provision Eager Zeroed, as it ensures that all space is allocated upfront and all blocks are zeroed out, providing better performance for applications. Options B and C, while valid, do not provide the same level of performance guarantees, and option D, Thick Provision Lazy Zeroed, can lead to performance degradation due to the zeroing process happening on first write.