Dell EMC Specialist – Systems Administrator, Unity XT — Question 58

You are designing a two-tiered Dell EMC SC Series solution that will be optimized for performance. You gather the necessary data from Live Optics and find that the read/write ratio is 80:20.
What approach is recommended?

Answer options

• A. Size Tier 1 for 100% of the adjusted IOPS
• B. Use distributed adjusted IOPS for all tiers
• C. Use distributed adjusted IOPS for Tiers 1 and 2 only
• D. Size Tier 2 for 100% of the adjusted IOPS

Correct answer: A

Explanation

Option A is correct because sizing Tier 1 for 100% of the adjusted IOPS ensures that the higher performance demands of the read-heavy workload are met. The other options are not optimal in this scenario; for instance, sizing Tier 2 for adjusted IOPS (Option D) would not prioritize the performance needs adequately given the 80:20 ratio, while using distributed adjusted IOPS across all tiers (Option B) or just Tiers 1 and 2 (Option C) does not align with the requirement for maximum performance in Tier 1.