The phrase "vast archive" refers to a large collection of records, documents, or information. It suggests that there is a significant amount of material stored or preserved in one place. Full definition
On line services have become vast archives of cases. (slaw.ca)
Discovery and the parent org of Motor Trend, the automotive news and content provider, set a joint venture last summer that saw Motor Trend vast archive, Discovery's Velocity and more than two dozen other automotive - related brands combined into an entity known as The Enthusiast Network, or TEN. (variety.com)
Represented in the photography collections of many major museums around the world, including the Metropolitan Museum of Art and The Museum of Modern Art, New York, this is a rare opportunity to gain access to the photographer's vast archive while also having the potential to walk away with a piece of it. (artlyst.com)