NOTICE DATE: August 17, 2009

NOTICE TYPE:  R-A081609-02 FINAL:  Outage – Retail Processing

SHORT DESCRIPTION: NAESB became unresponsive at approximately 4:25 AM on Sunday, August 16, 2009. ERCOT was unable to receive or send transactions from approximately 4:25 AM until 7:58 AM on Sunday, August 16, 2009.

 INTENDED AUDIENCE: CRs and TDSPs

DAY AFFECTED: Sunday, August 16 from 4:25 AM to 7:58 AM

LONG DESCRIPTION: NAESB became unresponsive at approximately 4:25 AM on Sunday, August 16, 2009. ERCOT was unable to receive or send transactions from approximately 4:25 AM until 7:58 AM on Sunday, August 16, 2009.

The NAESB, EDI, EAI, Customer Registration, and MarkeTrak databases had to be stopped and restarted.

Root cause has not yet been determined. Details will be provided in the monthly ERCOT IT Incident Market Notice Summary.

This will be the final notice regarding this incident.

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].

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.

JR/DP   

From: ERCOT Client Relations
Sent: Sunday, August 16, 2009 2:13 PM
To: [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]
Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; 1 ERCOT Client Service Reps
Subject: R-A081609-01 Outage - Retail Processing, Sunday, August 16 4:25 AM to 7:58 AM

NOTICE DATE: August 16, 2009

NOTICE TYPE:  R-A081609-01  Outage – Retail Processing

SHORT DESCRIPTION: NAESB became unresponsive at approximately 4:25 AM on Sunday, August 16, 2009. ERCOT was unable to receive or send transactions from approximately 4:25 AM until 7:58 AM on Sunday, August 16, 2009.

 INTENDED AUDIENCE: CRs and TDSPs

DAY AFFECTED: Sunday, August 16  4:25 AM to 7:58 AM

LONG DESCRIPTION: NAESB became unresponsive at approximately 4:25 AM on Sunday, August 16, 2009. ERCOT was unable to receive or send transactions from approximately 4:25 AM until 7:58 AM on Sunday, August 16, 2009.

The NAESB, EDI, EAI, Customer Registration, and MarkeTrak databases had to be stopped to do a restart. Root cause will continue to be investigated on Monday, August 17, 2009.

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].

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.

JR