Service Note: Library Catalog unavailable Wednesday, Jan. 20 Posted on January 14, 2021 by Melissa Cox Norris Service Note: The Library Catalog will be unavailable Wednesday, Jan. 20 as the two physical servers that house Sierra (UCLID/Catalog/ILS) will be replaced with new virtual servers. Thank you for your patience and understanding. Share on FacebookTweetFollow us Related posts: New Langsam Exhibit Features The Lucille M. Schultz Archive of 19th-Century Composition Join us for UC DATA DAY, Oct. 23 to examine World Changing Data: How Digital Data Will Change Our Future Sidney Gao takes on new role as digital collections manager Welcome to spring semester. Check out service updates and library location hours.