High Capacity SSDs are Driving the Shift to the All Flash Data Center
All Flash Arrays (AFAs) have had an impressive run of growth. From less than 5% of total array revenue in 2011, they’re expected to approach 50% of total revenue by the end of 2016, roughly a 60% CAGR. This isn’t surprising, really. Even though they’ve historically cost more on a $$/GB level (the gap is rapidly narrowing), they offer large advantages over hybrid and HDD-based arrays in every other area.
The most obvious advantage that SSDs have over HDDs is in performance. With no moving parts to slow them down, they can be over a thousand times faster than HDDs by some measures. Using them to eliminate storage bottlenecks, CIOs can squeeze more utility out of their servers. The high performance of SSD’s has allowed storage vendors to implement storage capacity optimization techniques such as thin deduplication within AFAs. Breathtaking performance combined with affordable capacity optimization has been the major driving force behind AFA market gains to date.
While people are generally aware that SSDs outperform HDDs by a large margin, they usually have less visibility into the other advantages that they bring to the table. SSDs are also superior to HDDs in the areas of reliability (and thus warranty), power consumption, cooling requirements and physical footprint. As we’ll see, these TCO advantages allow users to run at significantly lower OPEX levels when switching to AFAs from traditional, HDD-based arrays.
When looking at the total cost envelope, factoring in their superior performance, AFAs are already the intelligent purchase decision, particularly for Tier 1 mission critical workloads. Now, a new generation of high capacity SSDs is coming and it’s poised to accelerate the AFA takeover. We believe the Flash revolution in storage that started in 2011will outpace even the most optimistic forecast in 2016 easily eclipsing the 50% of total revenue predicted for external arrays. Let’s take a look at how and why.
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