NOTICE DATE:  September 21, 2015
NOTICE TYPE:  M-A092015-03 Unplanned Outage
SHORT DESCRIPTION:  Unplanned Outage of some ERCOT systems – Unplanned Fail-over
INTENDED AUDIENCE:  ERCOT Market Participants
DAY AFFECTED:  September, 21, 2015 17:00 to 20:00
LONG DESCRIPTION:  ERCOT will be performing a controlled fail-over at 17:00 this evening.  During this fail-over, the following market-facing systems will be intermittently impacted:
•         Components of the ERCOT Market Information System (MIS) including:

o   Report publishing to the MIS

o   Downloading of extracts and reports from MIS and External Web Services (EWS)


•         MIS and ERCOT.com dashboards and displays
•         MOTE
•         NMMS

·         Find ESI ID and Find Transaction

ADDITIONAL INFORMATION:  The potential for additional system issues was identified during testing and validation. As a precaution, ERCOT will perform a controlled fail-over and operate key systems in the alternate data center.  This will allow preventative maintenance to be completed on affected systems.
Missed report posting information will be sent in a follow-up Notice.
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 email at [log in to unmask]<mailto:[log in to unmask]>.
If you are receiving email 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.



mm