The Library of Congress has posted 2017 materials from its wonderful
annual  invitational Storage Architectures meeting, which takes place
in September. This is a great snapshot of costs and projections across
a wide range of storage platforms. Of particular interest this year is
the (to some surprising) persistence of tape, which is still seeing
very considerable storage density improvements, and the emergence of
what look like reallly industrial grade and scale object storage
systems. It's also clear that while SSD is quickly replacing disk for
many purposes in consumer marketplaces, it's going to be a very very
long time before it is likely to do so in data center markets ----
though it clearly has a significant and growing place in those markets.

The materials are at

http://www.digitalpreservation.gov/meetings/storage17.html


This is a great thing that LC does for the community.

Clifford Lynch
Director, CNI