Evolution of All Flash Arrays – Executive Summary
- March 17, 2017
In 2009, Wikibon projected that flash would be the lower cost alternative for active data. Figure 1 shows Wikibon’s technology projection for pure capacity data. It shows that flash (the blue line) will become a lower cost media than disk (the red line) for almost all storage in 2016, as scale-out storage technologies enable higher levels of data sharing, and lower storage costs.
The green line in Figure 1 shows the ratio between capacity flash and capacity HDD. The is -50% in 2015 (Flash is twice the cost). By 2016, flash will be 19% lower cost, and this will grow quickly from 2017-2020. The keys to achieving the lower costs of flash are:
This research discusses the key trends in flash and disk technologies in detail and the potential impact of new application design philosophies. Wikibon concludes that actions are require by all constituents of the ecosystem to make this happen:
The end-point of the adoption of flash-only persistent storage is a completely “electronic data center“, with no mechanical components except for a few pumps and fans. Within the electronic data center, electronic storage will allow logical sharing of the same physical data to be fully enabled. CEOs should be asking IT about definitive plans to move to an electronic data center, the timescale of the migration, and information about the first application(s) to employ the electronic storage to radically improve enterprise productivity and revenue.