One thought: before we switched to RAIS, we set the software up to serve TIFFs.  It was much faster than using JP2s, though it did require a lot of RAM, and could slow down tremendously when traffic spiked.  And it took a LOT of disk space, obviously, but it's an okay stop-gap if you need speed and don't have a huge number of images to serve.
From: Data, API, website, and code of the Chronicling America website <[log in to unmask]> on behalf of Mary K Willoughby <[log in to unmask]>
Sent: Monday, March 6, 2017 7:51 AM
To: [log in to unmask]
Subject: Using ChronAm with alternate IIIF compliant image server

Hi everybody,

Other than Oregon's RAILS server, is anybody out there in ChronAm land using a different IIIF image server? We're determining what our production setup is going to look like and are wondering about the cost/benefit of replacing the included server with a different one in the hope of getting faster rendering and possibly more flexibility in how we deploy everything.  Any success stories, horror stories, reflections, cautionary tales, etc. would be greatly appreciated.

Thanks very much,

Mary Willoughby
Digital Library Analyst
Digital Library of Georgia