Several eresources will be unavailable due to scheduled downtime this weekend:

ProQuest® Databases
ProQuest® will be performing infrastructure maintenance on October 22, 2011. A twelve (12) hour maintenance window will be required for this maintenance. The window will take place from Saturday, October 22, 2011, at 7:00 PM PDT to Sunday, October 23, 2011 at 7:00 AM PDT.

The following products will be unavailable during these windows:

• Legacy ProQuest platform products, ProQuest Historical Newspapers, American Periodicals Series
• Chadwyck-Healey products with domain names ending with chadwyck.com
• Illumina products such as Sociological Abstracts and GeoRef
• UMI products including online dissertation products

Melvyl UC Santa Cruz (also known as WorldCat Local)
On Saturday, October 22 there will be a scheduled service downtime for the WorldCat Local service from 11:00 PM PDT to 3:00 AM PDT on Sunday, October 23. This temporary service interruption is required to perform an out-of-cycle maintenance procedure.  All of the UC instances (Melvyl UC Santa Cruz, Melvyl UC Berkeley, etc.) will be unavailable at this time.

CDL's XTF Website
Due to routine maintenance, the XTF website (http://xtf.cdlib.org/) will be unavailable from 7:00 to 11:00 PM  PDT on Sunday, October 23rd, 2011.