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As a Exadata DBA, I worked on Moving the Standalone Databases to Exadata X-5 Machines using Dataguard and Rconfig Utility. Worked and involved in Patching of Exadata Machines. I have successfully setup Interdatabase IORM plans to govern I/O from different workloads in the Exadata Database Machine.Worked on configuring Exadata Storage setup and allocation of Griddisks, Flashdisk as per the client Requirement. Performed end-to-end monitoring and administration Exadata Machines.

I have administered Exadata Cell storage servers using Cellcli and Dcli utilities and migrated databases to the Exadata Database Machine via RMAN 11g and Rconfig. I've managed storage I/O on Exadata X5 Supercluster with IORM and DBRM Plans, and implemented EHCC for large databases. My experience includes installing Oracle 11g RAC databases on ASM, using SRVCTL and CRSCTL for high availability, configuring load balancing and SCAN, troubleshooting cluster and storage issues, and conducting cluster health checks and patching RAC databases to ensure continuous availability.

 Implemented Active Data guard, creating both Logical and Physical Standby databases in 11gRAC environment for the Production databases.  Monitored & performed Exadata Cell storage server administration tasks using Cellcli & Dcli utility. Worked on Exadata X4-2 Quarter rack Storage Server I/O Resource Management (IORM) to manage workloads within a database and across multiple databases. Implemented and used Exadata Hybrid Columnar Compression (EHCC) for large objects in a Multiterrabyte Databases. Improved SQL query performance on database machines by enabling Exadata Smart Scan and Storage index features. Applied patches to Exadata cell storage servers using patchmgr utility via rolling fashion method and to compute nodes using dbnodeupdate. Monitored Exadata Database machines from OEM12c Cloud control. Experienced in the installation of Enterprise Manager Cloud Control (12c) 12.1.0.4 and installing the Agents in all the production, test and development databases and configuring them. Experience in configuring OEM 12c cloud control load balancing by adding additional OMS using F5 Service Load Balancer(SLB). Experience in upgrading the old OEM agents to the new OEM 12c agents and configuring different targets in 12c cloud control. Created and setup rulesets for in OEM12c for user-defined metrics. Worked on setting up Active directory based authentication in OEM 12c for determining the User Identity Access to enterprise manager cloud control. Successfully configured and installed Oracle Golden Gate for Schema replication.

 Supported databases which include production Databases and Sandbox Databases. Installed, configured and managed 5 nodes RAC cluster on Linux Operating System. Configured & Installed Oracle RAC One Node databases and have experience working on moving Oracle ONE NODE RAC instance from one node to another (Instance Relocation) Using OMOTION Utility. Configured Oracle Restart feature to automatically restart the database, the listener, and other Oracle components for sudden hardware or software failures. Experience in Installing oracle 11g RAC databases using ASM file system and managing using server control utility (SRVCTL) and CRSCTL to achieve high availability. Configured high availability services TAF, FAN, Load balancing and SCAN features for clustered databases. Troubleshooting Cluster Startup Issues, Node Evictions, Network Issues and Storage Related Issues. Experience in Reviewing the Cluster Logs for troubleshooting and Implementing Cluster Health Check. Experience in patching RAC databases in rolling fashion to maintain high availability.

Worked as a Primary DBA at GE Appliances , involved in configuring and setting OEM12c Grid control and configuring different modules into 12c. Roles and responsibilities but not limited to :-11G DATABASE ADMINISTRATION.11GR2 Grid Infrastructure RAC.Golden gate Replication 11g database upgradeRMAN & Backup recovery ASMSQL Query Performance Tuning 11gEnterprise Manager Cloud Control 12cEnterprise Manager Grid control 11g .

 Installed RAC on Oracle 10g release1 and worked on ASM feature of Oracle. 24x7 Production database administration, support and monitoring to ensure a proactive problem recognition and resolution of database issues. Provided instance level performance monitoring and tuning for Event Waits, Sessions, Physical and Logical I/O and Memory Usage.  Performance Tuning i.e. Tuning RAC, tuning applications, shared pool, I/O distribution, rollback segments, buffer cache, redo mechanisms Oracle Grid Control Management Server Installation. Handling large database environments using Oracle Enterprise Manager (OEM) on daily basis observing the performance of the production database and constantly active regarding performance and space management issues and accordingly providing on-fly solutions to make database healthy and running. Monitoring and tuning using tools like Enterprise Manager 11G GRID, Oracle cost Based optimizer (CBO), SQL analyzer, automatic checkpoint tuning, SQL Advisors, Performance Manager, and Statspack. Performance analysis using AWR/ASH/ADDM reports and wait event analysis. Made performance improvements to the database by building Partitioned tables, Index Organized Tables, Materialized Views and Bitmap Indexes.  Supported development effort by providing SQL statement tuning and optimizing ETL procedures and removing load and query performance bottlenecks by using tools Explain Plan, SQL Trace, TKPROF, TOAD and Oracle Enterprise Manager.  Experience in Installing SQLServer 2008R2 to support certain Applications.

 24x7 Database administrations, support and monitoring to ensure a proactive problem recognition and resolution of database issues. Migration of Oracle databases from windows to Linux. Applied patches to Oracle Databases and Oracle Applications. Upgrading development and production databases to Oracle 10g. Proactive database monitoring using 10g grid monitoring tool. Database tuning using SQL-Trace, STATSPACK, EXPLAIN PLAN and TKPROF.  Extensive Performance Tuning, Memory (SGA) Tuning, net backup, EMC (Time finder and SRDF), RAID, RAW Devices. Performed database cloning to setup test and development databases. Responsible for optimizing the queries and application tuning.  Performed SQL tuning and assist developers with coding PL/SQL. Provided support to Application Database Administrators in designing the database.  Used RMAN for backup and recovery. Performed Hot, Cold and Logical backups. And performed backup validations using RMAN.