Information Technology Report

Trey FeltonManager, IT Service Delivery

September 2011

ERCOT Public

2 ERCOT PublicSeptember 2011

Highlights

Service Availability: 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

•System maintenance of the Market Information System (MIS) database and applications to correct intermittent data posting errors to the public dashboards on ERCOT.com (8/10)

• Components of MIS affected for up to 30 minutes from 10:30pm until 11:00pm

•TML Report Explorer was unavailable for 50 minutes (8/23) and degraded for 100 minutes (8/24)

• Find Transaction and Find ESIID were affected; users may have received “System Not Responding”

• Enterprise Application Integration had to be restarted due to a configuration issue, which has now been fixed

•ERCOT experienced system issues that prevented reports from being downloaded from the Market Information page on ERCOT.com (8/24)

– Issue lasted for 159 minutes; the reports continued to be available through MIS

3

Digital Certificates

Background ERCOT’s digital certificate vendor has migrated public root certification to 2048-bit, which in

turn requires all MP’s to utilize 2048-bit certificates. Digital certificates are required to access, download, submit, and query ERCOT systems.

• Timeline and required action

– No later than Sept 30th, Market Participants must update their certificates to 2048-bit• Market Operations Test Environment (MOTE) has been configured for testing • MP technical staff can follow 5 steps in the ERCOT SSL Communications Standards

– After Oct 1st, all 1024-bit certs should be deleted from keystore, as they will no longer be of use

– ERCOT will send market notices and brief numerous market participant forums

4

Browser Standard Timeline

ERCOT currently supports Internet Explorer 6 and 7 browsers Other browsers are mostly, if not fully, compatible though not supported by ERCOT IT staff

(Firefox, Safari, Chrome, etc) ERCOT is planning to have all market facing applications compatible with Microsoft browser

IE8 (Internet Explorer v8) by April 1, 2012 The IE8 browser comes with the latest version of Microsoft Windows Operating

Systems (Windows 7) and contains improved security features.   Prior to April 1st, 2012 ERCOT will publish a list of recommended IE8 browser

configuration settings

• ERCOT’s support for IE8 will allow Market Participants to upgrade their browsers anytime after the effective date

– Any Market Participant that has a problem with IE8 after April 1, 2012, can report the issue to Client Services or to ERCOT’s Helpdesk

– ERCOT will continue to support Microsoft IE7 until mid-2014. No action is required from Market Participants at this time.

5 ERCOT Public

2011 Net Service Availability (Retail and Market Ops)

September 2011

2011 Net Service AvailabilityYear to Date

Retail & Market Operations

Transaction Processing SLA Target: - Business Hours (BH): 99.9%- Off Business Hours (Off BH): 99%Texas Market Link (TML) SLA Target: 99%

MarkeTrak SLA Target: 98%TML Report Explorer SLA Target: 99%Retail API SLA Target: 99%Congestion Revenue Rights SLA Target: 98%Market Information System SLA Target: 99%

99%

98%

97%

94%

95%

96%

93%

92% and below

100%

Transaction Processing

(BH)

TML MarkeTrak Retail API

TML Report Explorer

99.95% 99.86%99.92% 99.83% 99.79%

CRR

99.96%

Transaction Processing ( Off BH)

99.95%

MIS

99.88%

6

2011 Data Center Availability

ERCOT PublicSeptember 2011

2011 Data Center AvailabilityYear to Date

Outage prevented due to Tier 3 redundancy

Target – 99.982%

99.99%

99.98%

99.97%

99.94%

99.95%

99.96%

99.93%

99.92%

100.0%

Taylor 1 Austin Bastrop

100% 100%100%

Taylor 2

100%

7 ERCOT Public

August 2011 Net Service Availability

September 2011

99%

98%

97%

94%

95%

96%

93%

92% and below

100%

August 2011 Net Service Availability

Transaction Processing

(BH)

TML MarkeTrak Retail API

TML Report Explorer

100% 100%100% 100% 99.87%

CRR

100%

Retail & Market Operations

Transaction Processing ( Off BH)

100%

MIS

99.97%

Transaction Processing SLA Target: - Business Hours (BH): 99.9%- Off Business Hours (Off BH): 99%Texas Market Link (TML) SLA Target: 99%

MarkeTrak SLA Target: 98%TML Report Explorer SLA Target: 99%Retail API SLA Target: 99%Congestion Revenue Rights SLA Target: 98%Market Information System SLA Target: 99%

8

August 2011 Data Center Power Availability

ERCOT PublicSeptember 2011

Target – 99.982%

99.99%

99.98%

99.97%

99.94%

99.95%

99.96%

99.93%

99.92%

100.0%

Taylor 1 Austin Bastrop

100% 100%100%

Taylor 2

100%

August 2011 Data Center Availability

Outage prevented due to Tier 3 redundancy

9

YTD Availability – Retail Market IT Services

ERCOT PublicSeptember 2011

Retail Transaction Processing (Business Hours)

Target – 99.9%

99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.95%

June July Aug

Retail Transaction Processing (Off Business Hours)

Target – 99%99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.95%

JulyJune Aug

Texas Market Link

Target – 99%99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.92%

JulyJune Aug

MarkeTrak

Target – 98%

99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.86%

JulyJune Aug

10

YTD Availability – Market Operations

ERCOT PublicSeptember 2011

Retail API

Target – 99%99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.83%

JulyJune Aug

TML Report Explorer

Target – 99%99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.79%

JulyJune Aug

Market Information System

Target – 99%99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.88%

JulyJune Aug

Congestion Revenue Rights

Target – 98%

99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Jan Feb MayAprMar

YTD – 99.96%

JulyJune Aug

11 ERCOT Public

TML Report Explorer Availability

September 2011

August 2011 TML Report Explorer Availability Summary

Target – 99%

August 2011 TML Report Explorer Availability – 99.87%

99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

TML Report Explorer Availability

8/23 (50 minutes) – Enterprise Application Integration had to be restarted to restore service; Find ESSID and Find Transaction were unavailable.

12

MIS Availability

ERCOT PublicSeptember 2011

August 2011 MIS Availability Summary

Target – 99%

August 2011 MIS Availability – 99.97%

99.00%

98.00%

97.00%

94.00%

95.00%

96.00%

93.00%

92.00%

100.0%

Market Information System (MIS) Availability

8/10 (30 minutes) – Planned maintenance to correct intermittent data posting errors

13

Release Management Metrics (Releases)

ERCOT PublicSeptember 2011

Awaiting slide

14

Release Management Metrics (Changes)

ERCOT PublicSeptember 2011

Awaiting slide

15

ERCOT Public Website Metrics (August 2011)

ERCOT PublicSeptember 2011

Awaiting slide

0

500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000

4,000,000

4,500,000

www.ercot.com Page Views Rolling Summary

All Other Page Views CDR Display Page Views

16

ERCOT Public Website Metrics (August 2011)

ERCOT PublicSeptember 2011

Awaiting slide

0

500,000

1,000,000

1,500,000

2,000,000

2,500,000

3,000,000

3,500,000

4,000,000

12/30/2010 1/30/2011 2/28/2011 3/31/2011 4/30/2011 5/31/2011 6/30/2011 7/31/2011 8/31/2011

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