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ERCOT Project Update ERCOT Outage Evaluation Phase 2 (SCR745)

ERCOT Project Update ERCOT Outage Evaluation Phase 2 (SCR745). TDTWG May 7, 2008_updated. PR60006_01 Phase 2 ERCOT Update - Overview. Background: SCR 745: To achieve improved Market performance and reliability through a reduction of ERCOT Retail Systems unplanned outages.

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ERCOT Project Update ERCOT Outage Evaluation Phase 2 (SCR745)

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  1. ERCOT Project UpdateERCOT Outage Evaluation Phase 2 (SCR745) TDTWG May 7, 2008_updated

  2. PR60006_01 Phase 2 ERCOT Update - Overview Background: SCR 745: To achieve improved Market performance and reliability through a reduction of ERCOT Retail Systems unplanned outages. This effort was planned to be implemented in two subprojects; PR60006_01: ERCOT Outage Evaluation Phase I and Phase II • Phase I, NAESB and Proxy Clustered (Delivered 02/2007-Goal Achieved) • Phase II, Paperfree Clustered environment with File Server Redundancy and High Availability PR60006_02: Phase III, Database Clustered environment (Cancelled per recommendations at 04/02/2008 TDTWG) Phase II Status: 02/10/2007 – Implemented Veritas clustered solution resulted in rollback due to unsuccessful failover. 03/08/2008 – Implemented Polyserve clustered solution resulted in rollback due to performance and stability issues (This would have delivered Redundancy and Failover) 05/07/2008 – Seeking recommendations from TDTWG for Next Steps 2

  3. PR60006_01 Phase 2 ERCOT Update – Next Steps Next Steps: ERCOT received and reviewed recommendations from HP for Performance improvements. These recommendations will require architectural changes, server rebuilds, and testing. Additional funding will be required for this remaining efforts. Timeline Constraint: • Stabilization of San Switch Replacement Project (est. thru July to be complete) • Test Environment Window elapsed: Lock down thru December 2008 due to Ts and Cs (June), IDR Throughput (Nov), MarkeTrak (Dec), and Nodal (Dec) • Resource constraints due to Ts and Cs, IDR Throughput, MarkeTrak, and Nodal (est. same as above) Budget Constraint: Additional funding will be required for the remaining efforts. Total Project estimated at $1M approved by Board in 2005. Committed approximately $885K to date. Will require Board approval to proceed if budget >$1M. ERCOT seeking endorsement from TDTWG to place project “On Hold” until resources and environment are available. Will take recommendation to RMS for approval Place project “On Hold” and resume execution when ERCOT is capable (preferred): • Benefit 1: Eliminate additional Finance charges by placing project “On Hold” • Benefit 2: Allow to move forward as a 2009 Project delivery with a rank and priority (deliver remaining High Availability/Redundancy requirement of SCR) Alternative: Close project and complete effort as O & M under the ERCOT Project Team supervision • Benefit: Eliminate additional capital charges • Con: Indirect ERCOT departmental charges for effort no funding available for contract resources 3

  4. PR60006_01 Phase 2 ERCOT Update – Outages 4

  5. PR60006_01 Phase 2 ERCOT Update – Outages Based on IT incident Report and SCR 745 (Metrics listed in RMS Recommendations) 5

  6. PR60006_01 Phase 2 ERCOT Update – PF Outage Details (3yrs) PaperFree Availability Metrics Prior to March 2008 as a result of 2007 Intermediate Resolutions • Previous Logged incident for PaperFree file server – 02/2007. • Until March, 2008 – Paperfree Application was 100% available due to intermediate solutions (meeting SCR Goal for reliability). 6

  7. PR60006_01 Phase 2 ERCOT Update – TDTWG Recommendations • Discussion Notes (HP-05/07/2008) • Requested by TDTWG to bring back estimates for proceeding with the project on hold. This estimate will include: • Timeline • Costs • Impacts to RO PPL • Risks/Constraints • Assumptions • ERCOT to bring back information above to next TDTWG for endorsement prior to taking to RMS. 7

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