1. Vittal Dadi
Email: vittalapps@gmail.com mobile:+1 9256831938
Experience Summary:
• Over 12+ years of experience as an Oracle Database Administrator with Oracle 10g RAC
Certified and 11g Oracle Certified Professional.
• Expert in production support in Oracle 9i, 10g ,11G R2, with ASM on Operating Systems
viz. Linux, Sun Solaris 10/9/8/7/2.6, AIX, HP-UX, VMS and Windows platforms in 24x7
basis. This covers Finance, Banking, Trading, Pharmaceuticals, Manufacture, Information
Technology.
• Excellent experience in up-gradation, migration, performance tuning, cloning,
patching, space management, database security, RAC environment and production
support.
• Expertise in setup, installation, configuration, maintenance and troubleshooting of
several Oracle tools and utilities like Oracle Enterprise Manager (OEM), TOAD, Oracle
SQL Developer in various versions.
• Expert in Performance Tuning i.e. tuning applications, shared pool, I/O distribution,
rollback segments, buffer cache, redo mechanisms.
• Experience in Auditing and Capacity Planning, Configuring & Managing Hot Standby
Databases (Data Guard).
• Performed In-place and Out-of-place patch set Upgrades
• Implemented data transfer using Transportable Table Spaces (TTS), Data Pump
(Export/Import) utilities.
• Experience of Oracle Golden Gate (GG) installation, configuration and troubleshooting
Golden Gate EXTRACT and REPLICAT issues.
• Experience in Real Application Cluster (RAC) environment with Automatic Storage
Management (ASM).
• Installed and Monitored Oracle 11g/10g RAC software and experienced on Performance
Tuning on RAC.
• Migrated NON-ASM databases to ASM using RMAN.
• Creating Users, Roles and Profiles, Privilege management with role-based security.
• Hands on Experience in Space Management, Capacity Planning.
• Expertise in performance-tuning, SQL tuning services with EXPLAINS PLAN, TKPROF,
STATSPACK, SQL TRACE, AWR, ADDM to collect and maintain performance statistics
and improve the database performance.
• Patch Management and Version Control.
• Enterprise Manager Cloud/Grid Control 12c/11g/10gR2. Provided all monitoring and
tuning.
• Have strong analytic, administration and problem-solving skills dedicated to maintain
the high quality standards. Good communication skill, ability to work independently.
• Have experience in Oracle Support (raising SR) processes for technical requests through
METALINK.
• Experience in SQL Tuning, Optimization, cost based optimization and Hints.
• Experience in Migrating databases to Oracle Exadata Database Machine for different
clients.
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2. Technical Skills Expertise:
Operating System HP-UX, AIX, Sun Solaris, Red Hat Linux, V-Block VMware and Windows 2003/2008 R2.
Databases Oracle 8.x, 9.x, 10.x, 11.x, 12c.
Clusters Oracle Cluster ware, Oracle ACFS, OCFS, VERITAS Cluster and Windows Cluster.
High Availability Oracle 9i/10g/11g/12c RAC, Standby Database, Clustering and Data Guard Setup,
Golden-gate, Automatic Storage Management (ASM) and Configuration and Tuning.
Oracle Tools Oracle Enterprise Manager, GoldenGate, Export/Import, Datapump, RMAN, Toad,
BMC Patrol, VERITAS Netbackup, IBM TSM , Tivoli
Ticketing System BMC Remedy, LANDesk and ServiceNow
Application Servers &
Others
Oracle Application Server 11i/R12 – SYS ADMIN, AOL, GL, INV,
Oracle Workflow, Oracle Discoverer, Oracle Alerts.
Work Experience:
Estee Lauder, New York , Database Administrator (Apr 2013 to Till Date)
The Reader's Digest Association, Inc. (RDA) is a global media and direct marketing company, best
known for its flagship publication founded in 1922, Readers Digest The company is headquartered
in New York.
Environment: Oracle 9i/10g/11g/12c , Oracle Toad 9.1.0, iSQL*PLUS, Windows 2003, Windows
XP, Linux RHE 4.0, SUN 5.10.
Responsibilities:
• Establish/Implement/Planning/Maintain Backup/Restoring/Recovering the Fully Functional
Database Policies and Procedures.
• Involved in Installation of Oracle 10g on Linux, IBN-AIX, Solaris, HP-UX and windows.
• Worked on Multiple RAC clustered environments ranging from 2 nodes to 4 nodes per
cluster.
• Implemented Oracle 11g new features like Real Application Testing (RAT), RMAN new
compression algorithm and tested active standby data guard.
• Involved in fresh installation of 11.2.0.2 RAC databases ASM file systems.
• Installed and Configured Golden Gate for replication of production databases to
Reporting Databases and troubles hooted Golden Gate issues.
• Installed, configured and supported uni-directional and bi-directional
replicated environments utilizing Golden Gate 10.x and 11.x software and created
manager, extract, replicate trail files. Tested data is flowing from heterogeneous source
systems to oracle database.
• Setup and configured Oracle 10g/11g Physical Standby database (Data Guard) to
ensure high availability, where the standby database was used for disaster recovery as
well as to offload the running of huge reports and did switchover and switchback And
Troubleshooting archive log gap between primary and standby databases.
• Tested RMAN incremental and image copy backups in DEV, IST, UAT and
Production databases.
• Tested RMAN image copy restore in DR database.
• Worked on 11g Grid control and 12C Cloud control and intensively used for Diagnostic
& tuning activities.
• Analyzing database performance and tuning database on Oracle Exadata
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3. using Real Application Testing (RAT)
• Performed cloning using RMAN to set up development and test databases from
Production database and Automated the nightly RMAN backups for the Production in
control –m and development Databases in Crontab.
• Expertise in recovering the database. Performed complete recovery, data file
recovery, incomplete recovery.
Johnson & Johnson, Database Administrator- Newyork (May 2007 to March 2013).
Johnson & Johnson is an American multinational medical devices, pharmaceutical and consumer
packaged goods manufacturer founded in 1886. This Project involves maintain of overall 3500
Database Servers which are on different platforms (IBM-AIX, Sun-Solaris, HP-UX, Linux and
Windows) and in various environment starting from QA to Prod.
Environment: Oracle 9i/11gR2/10gR2 HP-Unix 11i 11.31, Oracle Enterprise Linux 5.2/6.4, AIX,
RAC, ASM, RMAN, OEM, Windows 2008R2 Servers.
Responsibilities:
• Installed, Configured Oracle 10g RAC Cluster for a 3 node multi instances hybrid cluster.
• Performed Oracle RAC Clusterware Installation of 10g (10.2.0.4) Cluster Ready
Services on 3 nodes Configuration, RAC Database Creation, and Node Administration.
• Cloned databases by using RMAN and Exporting and importing database using Data
Pump.
• Involved in implementing Load balancing and testing failover on 3 node RAC
Database.
• Wrote scripts to improve the performance of importing indexes.
• Worked on implementing cold/hot/logical backup procedures using shell (LINUX)
scripting and also using RMAN. Developing, testing & implementing strong backup and
recovery strategy. Also responsible for monitoring backups.
• Responsible for creating RMAN catalog Database and Registering the Databases in
Catalog Database and Cloned production RAC instances to development and QA
systems using RMAN duplication.
• Extensively worked in various areas of Dataguard i.e. Installation, Recovery, RTA (Real
Time Apply), Patching, Tuning, Switchover, Switchback and Failover
• Involved in checking and writing scripts for managing table space growth, monitoring the
data file growth and extents too and Monitoring of CPU usage, I/O contention,
memory paging and identify the resource and performance bottleneck and
reorganization for ensuring performance.
• Monitored queries with high response time and high disk read per execution (Top SQLs)
and tuning the same using Explain Plan, TKPROF and SQL tuning advisor.
• Involved in De fragmenting data blocks of table spaces for optimized performance. Also
partitioned large tables to increase performance.
• Applied patches whenever necessary by downloading them from Metalink.
• Automated Database refresh from the Host system to Oracle using, SQL and PL*SQL
procedures.
• Used 10g features such as Data Pump, Flash Back Recovery, ASM, AWR, and
ADDM.
Deutsche Bank, Database Administrator (Sep 2006 to May 2007).
Being a banking domain, organized huge volumes of data having max size of 27 Terabytes critical
data with requires more proactive approach as the data is non-reproducible. Maintaining
Deutsche Bank Data Centers Located in US & UK. Supporting 1800 Database Servers which are
on different platforms (IBM-AIX, Sun-Solaris, HP-UX, Linux and Windows) located at U.S, U.K &
Singapore.
Environment: Oracle 8i, Oracle 9i, Oracle 10g Sun Solaris, Linux, IBM-AIX, HP-Unix, Windows
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4. 2000 Servers, RMAN, Unix Scripting, PL/SQL, Remedy Ticket, Fog light, TSM.
Responsibilities
• Refreshing DEV/UAT databases using Export/Import, RMAN and NON-RMAN Hot and
Cold Backup’s.
• Creates and maintains all databases required for development, testing, education and
production usage.
• Restoration of backup’s from TSM Server‘s.
• Binaries installation, patching & upgrading databases.
• Plans and implements backup and recovery of the Oracle database.
• Implements and enforces security for all of the Oracle Databases.
• Tuning the Memory allocation.
• Repair corrupt databases (logical exports and imports, restore from backups).
• Performing Database Upgrade and migrations.
• Troubleshooting (analysis, escalation, follow-up) of technical problems (process, tool).
• Co-ordination with Primary DBA and System Admin people in London and New York.
Airport Information Management Systems – AAI, Govt of India (Aug 2005 to Sep 2006)
AIMS, a customized software package aimed at effective management of information generated
at various centers and to support a databank accessible from different local Clients and also
from remote nodes on Airports Authority of India (AAI) Intranet - with Centralized Server
located in the Corporate Headquarters, New Delhi. Navayuga provided comprehensive solutions
for Airports in all major cities in India.
Environment: Oracle 9i,10g on Sun OS 5.9, TOAD
Responsibilities
• Responsible for creating database at central server, which is located at their head
quarters.
• Solving database related problems by connecting to their machine.
• Responsible for optimizing application, which includes tuning complex queries,
creating indexes, partitioning tables, optimizing initialization parameters, optimizing
memory parameters, providing backup and recovery strategies.
• Responsible for supporting all development teams on call basis, installing Oracle and
creating database setup.
• Scheduling DBMS and Cron jobs as per the business requirements.
• Database Refreshes from Dev to Test & Prod.
• Plans and implements backup and recovery of the Oracle database.
• Working closely with developers and resolving their application
issues related performance.
Tecumseh Products India Private Limited, DBA & Applications DBA(Feb 2005 to July 2005)
Tecumseh Products Company's (TPC) global vision of providing comfort, health and convenience
to millions worldwide, gives an impetus for the company's steady diversification into new
frontiers. And today, this cooling giant's products are available in over a 100 countries across the
globe.
Environment: Oracle Applications 11.5.9, Red Hat Linux AS 3.0.
Responsibilities
• Install Oracle Applications 11.5.9 on RH Linux AS 3.0.
• Instance Cloning for functional, technical and testing teams.
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5. • Track all the Patch/Patch set levels for all applications.
• Clone application and database tiers after patches are applied.
• Maintain application data using System Administration module including users,
responsibilities, printers, registration of concurrent programs and requests, etc.
• Monitor Application performance using stats package and implement recommended
parameters to tune the application and boost performance.
• Backup and Recover required instances using RMAN.
• Tune SQL statements in custom applications when required and or requested by the
development team members.
POWER PROJECT, Database Administrator (Feb 2004 to Oct 2004)
This project is developed for computerization of power billing. It maintains the
Complete database of GESCOM consumers. The oracle database is very useful for Maintaining
maintain the database.
DBA Roles:
• Basic DBA activity- Creating and managing Oracle Database server, Performance Tuning,
Storage management and maintenance (Tablespace, Data file, table, indexes etc.),
Database security (User & Resources, User Privileges & Roles).
• Implement the Database Design. The DBA has ultimate responsibility for the physical
database design. Take care of the Database design and implementation.
Sales & Supply Chain Data Warehouse Implementation, Database Administrator (Jan 2003 to
Jul 2003)
This project has involved building an enterprise-wide data warehouse for Hindustan Lever
Limited - which is the Indian arm of Unilever Limited and is India’s largest FMCG Company –
from ground up.
Environment: Oracle 9i, Red Hat Linux AS 3.0 and Informatica 6.2.
DBA Roles:
• The work involves overall Installation, Maintenance, Performance Tuning, Backup,
Recovery and other database related activities.
• Performed daily maintenance tasks like space management, user management,
managed quotas etc.
• Worked with PL/SQL developers to write limited database code, Packages, Procedure,
functions and DB triggers to query bridge data.
Professional Certifications:
• Oracle 10g RAC Certified.
• Oracle 11g OCP Certified.
Education:
• MSC(Masters in Computer Science) from Andhra University, India
• BSC(Bachelors of Computer Science) from Andhra University, India
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6. • Track all the Patch/Patch set levels for all applications.
• Clone application and database tiers after patches are applied.
• Maintain application data using System Administration module including users,
responsibilities, printers, registration of concurrent programs and requests, etc.
• Monitor Application performance using stats package and implement recommended
parameters to tune the application and boost performance.
• Backup and Recover required instances using RMAN.
• Tune SQL statements in custom applications when required and or requested by the
development team members.
POWER PROJECT, Database Administrator (Feb 2004 to Oct 2004)
This project is developed for computerization of power billing. It maintains the
Complete database of GESCOM consumers. The oracle database is very useful for Maintaining
maintain the database.
DBA Roles:
• Basic DBA activity- Creating and managing Oracle Database server, Performance Tuning,
Storage management and maintenance (Tablespace, Data file, table, indexes etc.),
Database security (User & Resources, User Privileges & Roles).
• Implement the Database Design. The DBA has ultimate responsibility for the physical
database design. Take care of the Database design and implementation.
Sales & Supply Chain Data Warehouse Implementation, Database Administrator (Jan 2003 to
Jul 2003)
This project has involved building an enterprise-wide data warehouse for Hindustan Lever
Limited - which is the Indian arm of Unilever Limited and is India’s largest FMCG Company –
from ground up.
Environment: Oracle 9i, Red Hat Linux AS 3.0 and Informatica 6.2.
DBA Roles:
• The work involves overall Installation, Maintenance, Performance Tuning, Backup,
Recovery and other database related activities.
• Performed daily maintenance tasks like space management, user management,
managed quotas etc.
• Worked with PL/SQL developers to write limited database code, Packages, Procedure,
functions and DB triggers to query bridge data.
Professional Certifications:
• Oracle 10g RAC Certified.
• Oracle 11g OCP Certified.
Education:
• MSC(Masters in Computer Science) from Andhra University, India
• BSC(Bachelors of Computer Science) from Andhra University, India
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