NOTICE DATE: July 21, 2009 NOTICE TYPE: M-A072109-01 Outage - Outage Scheduler SHORT DESCRIPTION: Outage of Outage Scheduler INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: July 21, 2009 LONG DESCRIPTION: After an EMMS (Energy & Market Management System) site failover, ERCOT experienced an outage of the Outage Scheduler from 10:55 AM until 11:41 AM on July 21, 2009. The outage was caused by an incorrect configuration file. The post failover script will be updated to help identify this type of issue in the future. CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via e-mail at [log in to unmask]<blocked::mailto:[log in to unmask]>. If you are receiving e-mail from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com<http://lists.ercot.com/> dh