Responsibilities as DBA

• Cloned the production database for test using RMAN utility• Switch of PROD database to passive server on OS Cluster• Database cloning and renaming the databases using control file.• Creation of databases, users, roles and implementing security features• Logical Backup using exp/imp and Data pump• RMAN backup and recovery, Online and Hot Cloning using COLD backup and RMAN Duplication. Mirroringof Control Files and Redo Logs.• Monitoring Tablespaces, Mount Points and archive logs on Daily basis• Resolving Tables fragmentation issues• Troubleshooting Database server performance issues by various methods.• Monitoring DR (Physical Standby Database) for any Log gaps and other issues.• Monitering the Dialy Backup jobs scheduled for database to tape through various tools like Hp data protector,Ca Archserver.• Preparing Checklist of various things like RAM & CPU Utilization of database Server, Gaps in DR, Backupreport of servers.

• Logging service requests with Oracle Support for reported issues and taking appropriate measures forresolution in consultation with support team.• Applying Patches simple, CPU's and PSU's using opatch utility

o Installation of Oracle server and Client software, creating, upgrading and patching databases in UNIX(Solaris, HP), Linux and Windows environmentso Configuration of Oracle NET listeners for connection between client user desktops and Server machineo Experience in Upgrade and Migration of oracle database to higher version (from Oracle 8i/9i and 10G) inmulti platformso System Administration activities like Creation of users, Assigning roles and responsibilities, setting profilesfor users, privileges, table spaces etco Working with the Development team to fix the problems related to database in their applicationso Involved in UNIX tool administration tasks & Shell scriptso Administration of third party tools (plug ins) in oracle 11i like Kintana, Vistaplus and PVCS issueso Follow up with oracle product support through metalink for any issues those functional consultants raises,which require files, system log files. Etco Developed automated scripts in UNIX to make sure that scheduled back up jobs of all instances are onscheduleo Cleaning up of log files of different processes like Apache, concurrent mangers.o Procedures/functions/package moving and tickets solving with the users.o SFTP testing

✓ Develop SQL scripts to monitor the growth of the tables and available free space in the table spaces.✓ Setting up Standby database's, implemented/ administered Data Guard for higher availability and Disasterrecovery. Used the standby database for reports generating purpose.✓ Capacity planning for databases based for the future business growth requirements.✓ Responsible for setting up Setup and monitoring Oracle backups using export/import, cold/hot backups,Standby Database, RMAN, configuring Oracle Physical Standby database (Data Guard) and RAC

➢ Installed 11gR2 two node RAC and added new node.➢ RAC validation tests such as node up, failure, instance abort, interconnect failure, listener failure, load ofmaximum session and locked object on database.➢ Installing and maintaining Oracle database 11g.➢ Creating database using DBCA.➢ Excellent in Oracle 11g Database monitoring and administration.➢ Create user assign role and profile to the user.➢ Managing physical & logical structure of database.

➢ Backups (Cold backup, Hot backup & Logical)➢ Interaction with Oracle support for application and database issues.➢ Performance Tuning of database queries, long running.➢ Performing daily sanity checks - Checking DB processes, Application services, RAC services, alert logs,backups etc.➢ Responsible for gather schema, table statistics from backend and front end.➢ Monitoring mount points, tablespaces, CPU utilization and performing housekeeping.➢ Create user assign role and profile to the user.➢ Generating AWR Report.➢ Provide on call support for production issues.

✓ Created user, allocation of appropriate tablespace quotas with necessaryprivileges and roles for Oracle databases.✓ Monitored tablespace size, resizing tablespace, relocating data files for better disk I/O.✓ Managed archived redo files, DB-links & Partitions, loading data for users by using SQL*Loader and usesImport, Export.✓ Set up cron jobs to monitor file systems usage, archive logs, backup logs, periodically clean up these Filesystems, and also monitor RMAN Hot Backup Scripts.✓ Implemented Flashback Recovery for Oracle 11g Databases which helped in recovery of the data in thesystems several times.✓ Prepared documentation on HA system, recovery scenarios, data conversion, system setup, configurationfor Linux hardware, Oracle Software Installations, database creation and naming conventions.✓ Implemented Oracle 11g Dataguard for High Availability (HA) and maintained stand by database for reportingpurposes.✓ Testing Disaster Recovery solutions using RMAN hot backup & dataguard.✓ Automated refresh of oracle databases from production to test environments.✓ Performance tuning, troubleshooting & monitoring using ADDM and Automatic Workload Repository Advisorin Oracle and SQL Profiler in Oracle Server Database for very large OLTP databases (VLDB'S)✓ Used OEM Grid Control Diagnostic and tuning packs to tune the application and SQL queries.✓ Increased company's main application performance, by providing proactive tuning and setting databasemaintenance plan for mission critical application running.✓ Conducted optimization and performance tuning of database, SGA and SQL*Net/Net8.✓ Gathered Database Instance Statistics & generated reports using STATSPACK and DBMS_STATS.✓ Configuration of server with OLTP system, runtime connection & load balancing.✓ Perform DB patching, troubleshoot issues/errors/incidents and collaborate with Oracle support for bugs &issues resolutions and personal research.✓ Applied patches and migrated databases from one platform to another, along with upgrade from oracle 10gto 11g and maintain an updated platform matrix.✓ Designed and implemented Oracle Real Application Clusters (RAC) on Linux for an OLTP application withTransaction Application Failover, high transaction volume and server pool/s for Load Balancing.✓ Troubleshooting and performing RE-ORG of tables, archive logs and data files, etc in RAC environment.✓ Drawing software & hardware requirements for the new applications.✓ Worked on cross platform migrations for all Oracle versions.✓ Provide on call production database support (24*7), troubleshooting & problem solving Oracle 10g, 11gissues.

Responsibilities:• Responsible for supporting full oracle Applications 11.5.10.2 Instances support including Installation, CloningApplications system Administration and Troubleshooting on Linux platform• Involved in Installing Oracle Applications on Non Production Instances.• Monitoring the Health checks of Oracle Application Non-Production instance• Monitored and troubleshooting Oracle application issues• Monitored concurrent request• Performed Applications system administration tasks

• Analyzed and applied all kinds of patches like application patches, RDBMS patch, tech-stack patches in nonproductiondatabases• Performed cloning of Oracle applications Non-production instances using rapid clone and RMAN• Creating application user accounts and assigned responsibilities• Maintained backup's using RMAN utility.• Monitored space management including adding and maintenance of tablespaces.• Created database user and granting roles and privileges• Monitored alert log on regular basis• Creation of control files, Redo Log files and data files, table spaces.• Analyzed and applied Applications patches and RDBMS patches on various Non Production Instances• Database performance tuning using TKPROF, AWR report