Improve - Six Sigma project - Database performance Improvement by Nirav Shah

1. 1.
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Nirav Shah (GB)
Improve UATIMNG
database performance
Dushyant Mohanty (TCS - sponsor)
V, Ms. Vijayalakshmi (MBB)
Nilesh Talele (BB)
Pierre Banroques (GE - sponsor)

2. 2.
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Time to implement Effectiveness Least Intrusion Budget Complexity Total
5 5 3 5 4
1 Follow Oracle Flexible Architecture 4 5 5 4 3 92
2 Data Restructuring to avoid Row
chaining & data fragmentation
5 3 4 5 4 93
3 Setting proper storage parameters
for objects
5 2 4 5 5 92
4 Database parameter settings 5 1 3 4 3 71
5
6
Chosen Solutions:Chosen Solutions:
1.1. Follow Oracle Flexible ArchitectureFollow Oracle Flexible Architecture
2.2. Defragmentation of database objectsDefragmentation of database objects
3.3. Set storage parameters for objectsSet storage parameters for objects
Criteria based MatrixImprove

3. 3.
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Proposed New ProcessImprove
Detailed Process Map for chosen solutionDetailed Process Map for chosen solution
Start
End
Identify current Table & Index allocation
Gather disk related Information
Apply OFA
• Table & Index data should reside
in different tablespace & disk partition
• Temp tablespace should on different disk
partition then undo tablespace
• System tablespace should on different
disk partition then user data
• distribute the data over disk
•Re organise table & Indexes sturcture Set appropriate storage parameter
Is data
fragmented?
yes

4. 4.
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Risk AnalysisImprove
Insert FMEA for the new process
FMEA Template

5. 5.
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Cost Benefit AnalysisImprove
Step 1 Summary Of Economic Benefits (Monthly)
Primary Savings : Time saved in running queries
Step 2 Methodology Used To Calculate
Primary Savings
1. Productivity gain based on time savings
Step 3 Key Assumptions Utilised
# Factor Assumption
1 Rate per day for productivity savings 110GBP per day per user
Step 4 Time Period
Annual Gross Benefits
(Economic)
CBA
Total Indirect savings: 9735 GBP

6. 5.
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Cost Benefit AnalysisImprove
Step 1 Summary Of Economic Benefits (Monthly)
Primary Savings : Time saved in running queries
Step 2 Methodology Used To Calculate
Primary Savings
1. Productivity gain based on time savings
Step 3 Key Assumptions Utilised
# Factor Assumption
1 Rate per day for productivity savings 110GBP per day per user
Step 4 Time Period
Annual Gross Benefits
(Economic)
CBA
Total Indirect savings: 9735 GBP