Database Administrator Resume
Plano, TX
SUMMARY:
- A technocrat with over 8 years of experience in Database Build, Administration, Client Servicing and Troubleshooting/Technical Production Support.
- Experience in administrating MS - SQL, MySQL and MangoDB database servers.
- Excellent experience in production support, installation, configuration, upgrades Migrations, patches, performance tuning, backup and recovery, cloning, space Management, database security, auditing.
- Installed, configured and managed Golden Gate replication between both RAC and non-RAC environments.
- Hands on experience of MS-SQL Server 2008 & 2012 Enterprise servers on production, Test and Dev boxes.
- Refresh/Create database using RMAN Duplicate/Alternate host restores and perform data refreshes using Datapump utility, Transportable Tablespace, Traditional EXP/IMP.
- Troubleshooting of Performance and Tuning problems in Oracle database using tools like AWR, ASH, ADDM, SATSPACK, OEM Grid Control and manual scripts.
- Installed and configured Oracle 12c Enterprise manager to monitor and report the Database health for over 500+ databases.
- Applied Oracle Patches (CPU/PSUs and One-off patches).
- Installed and administered Oracle 10g and 11g Data Guard.
- Experience in administrating Exadata Machine.
- Strong analytical and problem solving skills, a very good team player and also has the ability to work independently when needed and a quick learner of new technologies.
- Oracle Support processes for technical requests through Metalink.
- Experience in administering various 24x7 On-Call Production Support for critical applications.
TECHNICAL SKILLS:
Operating system: Windows 2008, 2012, Sun Solaris 9, 10, Linux RHEL 5, 6, AIX 5.3, 6.1, Confidential UX 11.
Database: ORACLE 8i/9i/10g/11g/12c, MS-SQL and MySQL.
Tools: RAC, OEM Grid Control, SQL* Loader, ASM, SQL Server, Export/Import, RMANGoldengate, TOAD, Patch Management, Data pump, Data Broker.
Database: ORACLE 8i/9i/10g/11g/12c, MS-SQL and MySQL
PROFESSIONAL EXPERIENCE:
Confidential, Plano, TX
Database Administrator
Key Skills: Data Guard, EXP/IMP, Data Pump, RMAN Backup/Recovery, Golden Gate, RAC, OEM Cloud Control, TOAD
Responsibilities:
- Good knowledge and lot of hands-on experience in implementation of database servers (includes HA setup like RAC, Goldengate and data guard).
- Execution of scripts, user creation and management.
- Backup and restore using RMAN utility.
- Deploying the scripts in database on the advice of application team.
- Working on End User requests in the database.
- Regular monitoring of all DB environments (RAC, Goldengate, data guard & single instance).
- Creation of clone database using RMAN for testing.
- Logical Backup of Databases using Export and Import Utility as well as using Datapump. migrated databases using GG and RMAN for 2 node RAC
- Resolved replication issues in Goldengate
- Configured Goldengate on production servers.
- Worked on Golden Gate setup and issue tracking and resolutions with Oracle support.
- Worked with on RAC resolutions on hangcheck timer, split brain, RAC recovery, ASM, OCR corruptions, voting disk loss.
- Troubleshoot performance issues for the RAC instances (GC events)
- Severity I issues resolution with corruption of individual disk data blocks, loss of OS configuration files, net configuration files.
- Resolved/Diagnose Node Eviction.
- Upgrade of 11g R2 RAC to 12c RAC.
- Implementing OEM cloud control and installation of agent in servers.
- Maintained all existing databases and new installations at current and stable production levels.
- Applied patches, quarterly patch security updates to existing instances.
- Proactive analysis of systems by running AWR, ADDM reports and taking necessary measures.
- Experience in monitoring and tuning system resources associated with the database performance, hit ratios, I/O, lock and latch contention.
- Deploy and maintain MongoDB databases/DB projects
- Manage and maintain both MongoDB servers across multiple environments.
- Automation of Startup, Shutdown on all production and development databases.
Environment: Windows, Linux, UNIX, SunOS, AIX
Confidential, Jersey city, NJ
Database Administrator
Key Skills: Data Guard, EXP/IMP, Data Pump, RMAN Backup/Recovery, Golden Gate, RAC, OEM Cloud Control.
Responsibilities:
- Worked as a Team Lead for Oracle DBAs to support Production and various non-prod environment and maintaining Oracle databases 12c/11g/10g/9i on Solaris, Confidential -UX, AIX, and Linux.
- Lead onsite-offshore DBA team to provide round the clock Production and non-prod enhancement support of a team sized 15 DBA’s (Onsite & Offshore)
- Work allocation, Track the status and report the weekly, monthly metrics to the client on the tasks and enhancements
- Developing and Implementing Disaster Recovery (DR) Plan.
- Implemented DATAGUARD (Standby) for high availability/disaster recovery purpose
- Database cloning from Production to Test and Development environments
- Performance tuning for optimized results using tools like EXPLAIN PLAN, SQL*Trace, TKPROF, STATSPACK, AWR and ADDM reports.
- Experience in Identifying performance bottlenecks on high volume transaction systems.
- Creation of database maintenance plans, rebuild indexes and integrity checks
- Intensively involved in the area of installations of Oracle Software, Configuration for database and day-to-day routine works for database administration.
- Implemented database auditing, data security and Remediate high-risk violation in production environment.
- Developed PL/SQL programs (Functions, Procedures, Packages and Triggers) executing on Database.
- Database Management - Backup, & Recovery, Performance Tuning, Configuration of Database, Table space administration, User management, Index management
- Created Users, Roles and Managing Security & Concurrent Managers administration.
Confidential
Database Administrator
Key Skills: Data Guard, EXP/IMP, Data Pump, RMAN Backup/Recovery, Golden Gate, RAC, OEM.
Responsibilities:
- Creation and Maintenance of Oracle databases as per the specification provided by application team, taking care of disk space, memory and other available resources.
- Downloaded and apply patches.
- Installed Critical Patch Update (CPU) on Clustered (RAC), NON Clustered databases and ASM instances on versions of oracle release.
- Software Upgrade (10.2.0.3 to 10.2.0.4)
- Installed Oracle on Linux
- Created and maintained database using homemade UNIX (KORN) shell scripts.
- Database Refresh using RMAN.
- Managing Users by Creating Roles and Granting & Revoking privileges
- Created oracle objects on request
- Restored database using RMAN on request
- Space management
- Resolved performance issues reported on production database
Environment: Windows, Linux, UNIX, SunOS
Confidential
Database Administrator
Key Skills: Data Guard, EXP/IMP, Data pump, RMAN Backup/Recovery, Golden Gate, RAC, OEM.
Responsibilities:
- Production support 24/7.
- Determination of type of oracle server setup.
- Installation of Oracle Database servers (ASM, clusterware, grid and database software installation).
- Implementation of RAC database on ASM storage with node addition and deletion.
- Handling upgrade and patching of RAC databases.
- Handling node eviction and multiplexing clusterware files.
- Installed GoldenGate software in Test and dev instances
- Configured Goldengate on production servers
- Upgraded Oracle Goldengate v10 to v11
- Moving the RAC DB instances from non ASM to ASM and viceversa.
- Grid Infrastructure installation and configuration.
- Installation and configuration of ASM in all the servers.
- Patching the binaries with the latest PSU patches and Bundle patches.
- Patching the cluster software and database home with rolling upgrades.
- Creation of Database in all type of servers.
- Configuration and administration of Data guard.
- Execution of scripts, user creation and management.
- Backup and restore using RMAN utility.
- Data/Database migration using RMAN in various scenarios.
- Cluster configuration verification using Cluvfy utility.
- Database upgrade from 10.2.0.4 to 10.2.0.5, 10.2.0.5 to 11.2.0.1 and 10.2.0.5 to 11.2.0.3.
- Cluster upgrade from 11.1.0.6 to 11.1.0.7 and 11.1.0.6 to 11.2.0.4
- Worked on various scenarios of restore from tape independently.
- Scheduling backup policy and writing UNIX shell scripts for scheduling automated backup.
- Exporting and importing data in database using Data Pump utility.
- Deploying the scripts in database on the advice of application team.
- Working on End User requests in the database.
- Regular monitoring of all DB environments (RAC, data guard & single instance).
- Implementing OEM grid server and installation of agent in servers.
- Configuring server and database monitoring for all servers and database in OEM.
- Testing switch over and switch back in the servers in DR site and primary site.
- Database refresh in various servers using RMAN (both single instance & RAC setup).
- Installation of oracle client in the application server and also adding up tns entry and setting up database connectivity.
- Troubleshooting the problems and issues and finding a workaround and avoiding down time for all the environments.
- Hands-on experience in working on DR-drill activity various times and ensuring that activity is completed perfectly.
Environment: Windows, Linux, UNIX, SunOS, AIX
Confidential
Database Administrator
Key Skills: Data Guard, EXP/IMP, Data Pump, RMAN Backup/Recovery and RAC
Responsibilities:
- Worked on various scenarios of restore from tape independently.
- Installation of Oracle Database servers (ASM, cluster ware, grid and database software installation).
- Patching the binaries with the latest PSU patches and Bundle patches.
- Patching the cluster software and database home with rolling upgrades.
- Configuration and administration of Data guard.
- Execution of scripts, user creation and management.
- Backup and restore using RMAN utility.
- Cluster configuration verification using Cluvfy utility.
- Scheduling backup policy and writing shell scripts for scheduling automated backup.
- Exporting and importing data in database using Data Pump utility.
- Deploying the scripts in database on the advice of application team.
- Working on End User requests in the database.
- Regular monitoring of all DB environments (RAC, data guard & single instance).
- Implementing OEM grid server and installation of agent in servers.
- Configuring server and database monitoring for all servers and database in OEM.
- Testing switch over and switch back in the servers in DR site and primary site.
Environment: Windows, Linux, UNIX, SunOS, AIX
Confidential
Database Administrator
Key Skills: Providing support as L1, User ticket handling, EXP/IMP, Data pump, RMAN
Responsibilities:
- Creation of Tablespaces, data files, users etc., for the project requirement.
- Controlling the users operations by limiting the memory spaces and grant the necessary roles, privileges and profiles to the users.
- Performed regular RMAN backups to safeguard from User errors and Media failures.
- Creation of clone database using RMAN for testing.
- Using TKPROF, STATSPACK to find ways to improve the database’s performance.
- Creation of Clone database for the test database environment using RMAN.
- Logical Backup of Databases using Export and Import Utility as well as using Datapump.
- Recovery of lost objects and datafiles.
- RMAN Backup and recovery strategies.
- Datafile Consistency using DB Verify.
- SQL Loader and PL/SQL Object creation
- Implementation of DATAGUARD Physical Standby.
- Checking the Archive log shipping between the Primary and the standby (DR) databases and troubleshooting it by rebuilding the Standby databases.
- Transportable Tablespaces.
- Recovery Catalog using RMAN.
Confidential
L1 support for Linux servers and Oracle Database
Responsibilities:
- Handling incident queue and assigning to team members based on priority and criticality.
- Arranging conference call between respective team with customer to understand the current issue.
- Monitoring system generated alerts and raising incident based on priority.
- Assigning resources to change request CRQ on schedule window.
- Raising change request based on request from client and incident ticket.
- Performing basic health check on Server and Database, sending report to higher management.
- Follow up with respective team to resolve incident ticket which is SLA going breach.
- Managing customer service operations for rendering and achieving quality services.
- Responsible for resolving customer complaints on performance bottlenecks.
- Providing value added customer services by attending customer queries and issues.
