Information Technology Report

Trey FeltonManager, IT Service Delivery

June 2013

ERCOT Public

2 ERCOT PublicJune 2013

Highlights

Service Availability – April Market Operations IT systems met all SLA targets Market Data Transparency IT systems met all SLA targets Retail Market IT systems met all SLA targets Grid Operations IT Systems met all SLA targets

May:

– Production data warehouse became corrupted during Disaster Recovery testing (5/3)• Database was rebuilt and validated on 5/6• Impacts:

– Delayed extracts– Find ESIID and Find Transaction taken offline Friday (5/3) at 7:43AM, and re-enabled at 11:04AM– Retail processing not affected, although initial Market Notice indicated it was down

• Root Cause: Human error during Disaster Recovery testing• Short Term Solution: Process change to data warehouse replication procedures

– MarkeTrak experienced a 57 minute degradation followed by a 10 minute outage due to slow performance (5/20)• Resolution: Restarted application server• Root Cause: Application ran out of threads during period of high utilization

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MarkeTrak

ERCOT PublicJune 2013

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Highlights

• SLA Exception Request– Customer Registration Management application upgrade– Scheduled July 27/28

– Due to the extensive changes with this release, ERCOT will request an early start time for the Release at June meeting.

ERCOT PublicJune 2013