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About Me
Mallikarjun Ramadurg is an Oracle DBA and EXADATA administration Expert and has a deep knowledge in Oracle EBS APPS DBA, having more than 8 Years of experience and has got In-depth knowledge of database design, build, cloning and administration an...
I am currently leading a team as infrastructure lead.
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Positions
Portfolio Projects
Description
· Installation, Configuration, Monitoring and Administration of all Oracle Databases
· Installation and configuration of EBS applications and APPS DBA support.
· ZFS patching and EXADATA Administration, Platinum patching and H/W maintenance
· In-House datacenter migrations projects.
· OMC Log Analytics Setup
· SSO implementation
· Thin Clone/gDBClone - Project
· Tape Backup validations
· EXADATA OS backup
· Infrastructure support and backup management
· Handling the project activities for performance improvement.
· Exadata ASR and H/W maintenance and monitor
· DB and Linux OS User Audit
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· Installation, Configuration, Monitoring and Administration of all Oracle Databases
· On Exadata Manage Security & Privilege, DR & Replication, Backup & Recover and other daily operations and ensure performance and availability
· Hands on experience in Root cause analysis for business impacting issues
· Manage & Configure Exadata Machine (Network, OS, DB)
· CELL services monitoring and EM control monitoring.
· Troubleshooting the Exadata features.
· Giving L2/L3, 24/7 support to the client as DBA and leading the team in operations.
· Installing the RAC set-up in EXADATA boxes of 11g and 12c using OUI and GI infrastructure.
· Health checking of EXADATA system using exachk utility
· Monitoring the Nodes via ILOMs for checking performance and bringing up the nodes via ILOMs
· Collecting the diagnostic repost and CELL/DB node and ILOM snapshots
· IB Swicth patching using the patchmgr
· Installing or up grading existing databases over RAC environment.
· Upgrading the database with the data guard setup
· EXADATA administration and EXADATA CELL severs and DB server administration
· EXADATA engineering system patching, BP(Bundle Patch), YUM, CELL and IB switch
· Database up gradation from 11.2.0.3 to 11.2.0.4 or 11.2.0.4 to 12c or 11.2.0.3 to 12c so on. Have done more than 200+ upgradations
· SPOC responsibility for the sensitive EXADATA customer and meeting their satisfaction/expectation during pre-patch, patching and post-patch activity
· Installing the mgmt Database in 12c
· Clearing escalated and high severity tickets as part of team member.
· Grid infrastructure upgrade and database upgrade from 11.2.0.3 to 11.2.0.4 or 11.2.0.4 to 12c or 11.2.0.3 to 12c so on, have done more than 200+ upgradation.
· Exadata patching. (Compute nodes, Storage nodes, Infiniband Switches and Bundle patches on Databases).
· As Exadata System performance specialist, used to handle compute nodes and storage server administration.
· Software cloning.
· Experienced in troubleshooting and decision making knowledge on mission critical issues.
· Administration of Oracle 11gR2 RAC environments for multi-nodes based database.
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· 24x7 Remote Database Support
· Creation/administration of oracle database as per the requirement of Dev or QA team.
· Applying oracle Upgrade and Patches.
· Taking backup using RMAN.
· Creation and management of schemas as per user requirement.
· Taking EXPORT backups on daily basis, RMAN backups and Refreshing DBs.
· Installing ORACLE in RHEL 5.0/Win and Creating DBs and creating Users granting roles and managing DB links
· Monitoring listener availability. Managing SQL developer, monitoring and tracing user session and performance tuning
· Troubleshooting of the ORA errors.
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· Monitoring availability of Databases, Instances and its listeners.
· Monitoring Growth of Tablespaces, data files and Redo log files.
· Monitoring disk space and escalate to OS administrators for any disk space issues and also inform the Client regarding the consequences of it.
· Monitoring the existing DR site to make sure that they are in sync with production.
· Checking alert logs for errors and resolving them.
· 24 x 7 support for all database related incidents
· Creation of new databases and administration of existing databases
· Installation of Database related software
· Role creation, modification, deletion
· Proactively monitor and maintain database instances.
· Proactively analyze and eliminate reoccurring problems to reduce number of incidents.
· Disaster Recovery completed successfully by being in Bridge Call with the Clients and the other Vendors.
· Performed Cold Cloning of databases.
· Database Patching, Troubleshooting.
· Usage of OEM to maintain databases.
· Working on HP ticketing tool.
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