NOTICE DATE: November 24, 2008 NOTICE TYPE: R-A112108-02 UPDATE - Unplanned Outage - Retail SHORT DESCRIPTION: ERCOT's Electronic Data Interchange (EDI) application experienced an outage on November 21, 2008 from 1:13 PM to 2:10 PM. INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: November 21, 2008 from 1:13 PM to 2:10 PM LONG DESCRIPTION: ERCOT's Electronic Data Interchange (EDI) application experienced an outage on November 21, 2008 from 1:13 PM to 2:10 PM. During an EDI application server failover on November 21, 2008, it was discovered that a scheduled maintenance activity performed during a planned maintenance outage on September 7, 2008 was not successfully completed for the EDI application. The failover on November 21, 2008 was the first failover on that server since the maintenance outage. In order to resolve this issue, the application was failed back to the original processing servers. Transaction processing was then returned to normal. As a result of the outage, there was a subset of transactions that were duplicated outbound (79 transactions) or the 814 response transaction was delayed. ERCOT is completing the transaction analysis and will have all reprocessing completed by the end of the day, November 24, 2008. Below are the counts of transactions requiring reprocessing. Transaction Type Count 814_01 11 814_09 9 814_12 1 814_13 8 814_21 7 814_24 3 814_25 180 814_28 16 814_29 3 Total 238 ADDITIONAL INFORMATION: ERCOT's Electronic Data Interchange (EDI) application is now operational. ERCOT will be notifying affected Market Participants by logging MarkeTrak issues with details of the transactions. 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 <http://lists.ercot.com/> . JR/DP/JA ________________________________ From: ERCOT Client Relations Sent: Friday, November 21, 2008 3:24 PM To: [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask] Cc: 1 ERCOT Client Service Reps; [log in to unmask]; [log in to unmask]; [log in to unmask] Subject: R-A112108-01 INITIAL NOTICE - Unplanned Outage - Retail NOTICE DATE: November 21, 2008 NOTICE TYPE: R-A112108-01 INITIAL NOTICE - Unplanned Outage - Retail INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: November 21, 2008 from 1:13 PM to 2:10 PM DESCRIPTION: ERCOT's Electronic Data Interchange (EDI) application experienced an outage on November 21, 2008 from 1:13 PM to 2:10 PM. ERCOT's Electronic Data Interchange (EDI) application is now operational. Additional information will be provided as it becomes available. 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 <http://lists.ercot.com/> . JR/DH/JA