Db2 Udb Database Administrator Resume
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Waltham, MA
SUMMARY
- DB2 UDB/AIX/LINUX Administrator wif over 7 years of IT experience wif expertise as a Data Architect and Database Administrator on both OLAP and OLTP systems.
- Strong technical skills working as a DB2/UDB 9.7 DBA. Data architect capable in all phases of development and operations.
- Performing Database Analysis, Database Design, Creation, Performance Tuning, Security, Backup and Recovery, Installation and Upgrades.
PROFESSIONAL EXPERIENCE
Confidential, Waltham MA
Db2 UDB Database Administrator
Responsibilities:
- Installed and configured several DB2 9.5 DPF instances.
- Designed and Implemented the backup and recovery strategies for DB2 landscapes (Sandbox,Dev, Training, QAS and Production).
- Worked on Disaster Recovery and High Availabilty on Active - Active cluster mode using Db2 agents.
- Configured and performed daily Database backups on several Database servers in VLDB environment.
- Performed and actively monitored daily database house keeping jobs on DEV/TRN/QAS/PRD servers.
- Monitored the performance of productions servers on a daily basis and worked wif the development team through the issues to approach stability.
- Created physical data model using Erwin.
- Generated and maintained DDL’s from the data model and executed it across several database landscapes.
- Tuned and assigned bufferpools to largely growing table spaces in the databases depending on the tablespace growth to optimize database I/O operation.
- Worked on expensive SQL, Locks, database error longs, and Memory analysis.
- Established and Maintained DBA monitoring and reporting standards to ensure compliance wif applications at service levels.
- Managed Primary and standby databases in HADR environment using Confidential SUSE HA agents
- Created and maintained partition by range tables to store quarterly sales data.
- Used DB2 native utilities like db2pd, db2dart, to monitor and tune databases.
- Used DB2 Performance optimizer to monitor system performance, SQL activity tracing, file system maintenance.
- Used DB2 performance monitor to create event exceptions especially on application lock time out and deadlocks.
- Performed DB migration from Db2 V9.5 to Db2 9.7.
- Performed Pre/Post DB migration steps for a consistent database environment.
- Providing support to various SAP components including SolMan, CRM 7.0, JCRM7.0, ECC6.0, BINetWeaver 7.0, Portal 7.1, PI 7.1, CE 7.1, MDM7.1, BI JAVA.
- Used db2advis to recreate and tune indices against largely growing tables in the database.
- Managed and maintained appropriate database users profile by assigning them to proper groups/roles and giving access to appropriate views/ user defined tables.
- Executed performance traces on database servers during on/off peak hours to analyse system bottlenecks.
- Created physical data base model using ERWIN.
- Designed data marts for Enterprise data warehouse.
- Designed Perl /Ksh scripting to define database house keeping jobs.
- Created event monitors on database server instances to monitor application deadlocks and time outs.
- Performed routine database health checks on production servers and coordinated wif the application / OS team to facilitate changes.
- Designed and Performed database recovery strategies in development and sandbox environments to initiate database refreshes.
- Executed DB2trc to gather information for long and expensive SQL’s
- Scheduled several database house-keeping jobs using crontab facility.
- Worked on MQT and MDC and index creations for DPF database instances.
- Provided performance monitoring during all phases of the Application’s development lifecycle.
- Coordinated wif the onsite Data Center to include and configure the sizing of appropriate file systems on AIX servers.
- Provide daily development support to application teams including database connectivity, configuration (index creation, database layout, schema changes) and Data migration.
- Performed database migration of instances and databases from 9.5 to 9.7 LUW.
- Installed fix pack and patch upgrades for DB2 UDB 9.7.
- Configured STMM for DB2 9.5/9.7s LUW on AIX for optimized performance.
- Worked wif the Incident and Change control management team to facilitate production deployments and provide post production support.
- Assisted users to install Db2 runtime client at their work stations and make connection to DB2 server instances.
- Performed Q-Replication on unidirectional mode among source and target servers on several tables.
- Worked wif the MQ team members to configure the Q managers and Q subscriptions.
- Provided database and SQL Tuning expertise wif recommendations to application developers, vendors and other core Application teams
- Created and tuned bufferpools on a DPF environment by assigning certain table spaces based on date volume and I/O operation.
- Created and maintained several table spaces and tables in DPF database environment.
- Performed table space size analysis post major Insert/Update/Delete and schedule database housekeeping jobs to integrate the changes.
- Acted as a main point of contact on rotation basis responsible for onsite DBA support to critical production issues.
- Created and maintained Instances, databases, table spaces, schemas (both administrative and development) in DB2UDB for developers.
- Installed and configured new DB2 subsystems on AIX
- Setup and modified database manager configuration parameters and database configuration parameters post migration from V 9.5 to V 9.7.
- Configured active/standby database clusters and HACMP resources for HADR on Db2 9.5 using smitty
- Worked on Data modeling (logical and physical data modeling using ERWIN).
- Experimented wif Indexes and employed Index Advisor to improve user report and speed ETL runtime.
- Used REORGCHK, REORG and RUNSTATS to further performance goals.
- Designed ERD’s using ERWIN.
- Responsible for backup, restore and migrating data between different databases/servers.
- Performed Database sizing, tablespaces, indexes and log spaces design & implementation work.
- Set up DB2 UDB/AIX production and development environments.
- Database maintenance for development, and synchronizing it wif the production database.
- Database Clean up (development database) scripts (Unix Shell Scripts, Cron, & SQL) for automated clean up every week.
Confidential, MA
SAP UDB DB2 DBA
Responsibilities/Deliverables:
- Working as SAP Basis/DB2(9.7) DBA wif a 7-person Basis Team both on-shore and off-shore toprovide a 24x7 support to SAP operation (total of 56 SAP instances using DB2 running on56 servers) .
- Installing and configuring several SAP Landscapes including SolMan, CRM 7.0, JCRM7.0,ECC6.0, BI NetWeaver 7.0, Portal 7.1, PI 7.1, CE 7.1, MDM7.1, BI JAVA 7.0.
- Designing and Implementing the backup and recovery strategies for SAP landscapes (Sandbox,Dev, Training, QAS and Production).
- Configuring and performing daily Database backups on 56 SAP / database servers.
- Performing daily database house keeping jobs on DEV/TRN/QAS/PRD servers.
- Installed and Configured sap router to establish connection between local and remote SAP routers.
- Providing support to various SAP components including SolMan, CRM 7.0, JCRM7.0, ECC6.0, BINetWeaver 7.0, Portal 7.1, PI 7.1, CE 7.1, MDM7.1, BI JAVA.
- Proven expertise working wif DBA Cockpit.
- Worked on ABAP stack and Dual Stack archiving.
- Scheduled archiving jobs to clean up the mass data from the system.
- Performed database housekeeping jobs post archiving jobs to update the system.
- Prepared and published DB2 Installation/update plans and documents.
- Monitoring the performance of SAP PRD servers on a daily basis.
- Managing and Maintaining appropriate users profile by assigning them to proper groups/roles.
- Executing different kind of developer traces related to performance to analyse system bottlenecks.
- Working wif HA Implementation team to design and implement an active-active High Availability
- Clustering on SAP Systems(DB2(9.7) and SAP agents) using SLES HA Solution in QAS andPRD.
- Coordinating wif the Data Center Monitoring Team to include and configure SAP Filesystems and critical processes in the daily monitoring list.
- Using DBA Cockpit utility to monitor and tune the database in a daily fashion.
- Installed and configured CCMS agents on central systems to assign and manage automatic reaction for key processes on the servers.
- Monitoring SAP Servers daily on DEV/TRN/QAS/SBX/PRD using CCMS agents, Nimbus/Netcool and Perl/Shell Scripting.
- Installing and configuring SAPRouter for OSS connections between SAP and ACS SAP servers.
- Opening and maintaining OSS connections across all ACS SAP servers.
- Working wif SAP closely to fine tune the DBM, DB and environment configuration parameters for go live check
- Working wif SAP to support Pre/Post GO-LIVE checks on the Production System.
- Monitoring 56 HA SAP DB2 (9.7) Database Instances using DBA cockpit and other DB2- nativeutilites.
- Using SAP MDM Data Manager v 7.1 and SAP MDM Data Console to archive, un archive, load,unload, maintain and configure MDM Repositories.
- Importing ABAP/JAVA and NWDI transports in DEV/QAS/PRD.
- Working on BMC Incident and Change control management process to facilitate production deployments and providing post production support.
- Worked on ABAP stack and Dual Stack archiving.
- Worked wif the DB Enterprise team to design and implement HA solution on databases.
- Worked wif the Data center team to provide DR strategies.
- Scheduled archiving jobs to clean up the mass data from the system.
- Tuned and maintained bufferpools to optimize I/O operation against databases
- Performed database housekeeping jobs post archiving jobs to update the system.
- Creating and maintaining a heterogeneous Database connections and Data sources between
PROFESSIONAL EXPERIENCE
Confidential, MA
AIX - DB2 UDB Database Administrator
Responsibilities/Deliverables:
- Installed, configured and maintained DB2 database (500 GB) in AIX platform.
- Responsible to provide support to development team to develop New Account Opening and Online Account Opening applications and perform replication in cross platform (DB2 v9.5 - SQL SERVER 2005 Enterprise Edition) and maintain the database environment in daily fashion.
- Managed OLTP database for development activities to develop NAO and OAO applications in IBM Web sphere 6.0 Platform.
- Designed triggers for Data REPLICATION process from DB2 to SQL Server to capture delta changes in the database.
- Configured several Client workstations wif DB2 UDB ESE and Express C 9.5 for developers using response files / unattended installations.
- Configured and maintained Instances, Databases, Table spaces, Buffer pools in Windows and Unix environments.
- Configured OLEDB/ODBC driver to support various autantication types of DB2 and establishing the connection among databases.
- Migrated DB2 from version 8.2 to version 9.5 in AIX platform.
- Performed Pre and Post migration tasks by configuring database and instance management files.
- Configured Linked Server for pulling up the data from IBM DB2 v 9.5 to SQL SERVER using SERVER ENCRYPT mechanism.
- Performed Redirected Restore of the database to support table space container resizing.
- Monitored hit ratios for buffer pools, package cache, catalog cache using DB ARTISAN on a daily basis.
- Wrote Stored Procedures to support Application development activities.
- Used IBM Rational Architect suite to create and modify database domain models including table spaces and buffer pools and database partition groups.
- Resolved deadlocks by configuring DLCHKTIME, LOCKTIMEOUT, LOCKLIST, MAXLOCKS parameters.
- Configured the database monitor switches for DB (SYSADM, SYSMON) group to run the regular snapshots.
- Took daily Snapshots at regular intervals on applications, table spaces, buffer pools, dynamic SQL statements.
- Managed instance profile securities and user access to several database environments like Integration, Pre-Production and Production.
- Configured the DB2GOV configuration file to make it work wif the DB2 Query Patroller.
- Created Table Event Deadlock Monitors for monitoring and resolving deadlocks in databases.
- Configured WAS Server Application settings to support various ISOLATION levels in Application to minimize deadlocks.
- Shell scripting to automate the various phases of build deployment procedure for NAO/OAO application development.
- Wrote BATCH Scripts for WINDOWS environment to automate database deployment for application development.
- Performed PRE and POST deployment tasks after upgrading the UDB database FIXPACK level to 3a from 2a.
- Scheduled AIX CRON jobs for REORGCHK, REORG and RUNSTATS, Online/Offline BACKUP and DATA ARCHIVING.
- Configured database diagnostic logs, error logs, active and archived log space.
- Commissioned DB2 environment and registry variables to avoid Stale Connection Problems.
- Responsible for performing online and offline backup, restore and migrating data between different databases/servers.
- Used DB2 Visual Explain utility to create/analyze access plans and tweaked the DML’s accordingly.
- Performed Database sizing, tablespaces, indexing and log spaces design & implementation work.
- Prepared and deployed the DDL and DML scripts-build at regular basis to support NAO/OAO development activities.
- Configured DB2 Connect to integrate data from client server including Workgroup and LAN based architecture.
- Created the Partition by Range tables for Audit Logging Activities/Fraud Logging Activities.
- Performed Disaster Recovery Planning for the database using HADR methodology.
- Commissioned Production Database for Beta release of NAO and OAO applications.
- Managed diagnostic logs, error logs, active and archived log space requirements.
- Designed Indexes and employed Index Advisor to improve user report and speed ETL runtime.
- Worked on XML Query/XQUERY for Audit logging and Development activities.
- Performed Reverse Engineering of the Database Domain Model from database schema using Rational Data Architect.
- Management of multiple schemas in Integration/Preprod/Prod environments.
- Monitoring the applications connected to the database to evaluate the workload.
- Used DB2LOOK Utility to generate DDL for several database objects in a specific schema.
- Used DB2PD for database and instance level monitoring and tuned the database accordingly.
- Used IMPORT, EXPORT, LOAD utility to populate staging and production tables.
- Configured DB2GOV daemon property file to govern application loads at instance and database level.
- Administered AIX for Database maintenance activities.
- Used DB2 Query patroller to intercept queries and bench marked the results wif the DB2 Governor.
- Created and altered DMS table spaces and added/modified containers.
- Used DB2GOV utility using NICE to set the priority of the applications at database level.
- Monitored Table space and Buffer pools usage/hit ratios by running specific snapshots and modifying it.
- Configured DB2GOV utility rule to set the maximum number of rows selected and idle time and locks held for applications connected to the database for specific authorization ids.
- Used DB Visualizer 6.0 for database monitoring activities and provided support to development teams to use it.
Confidential, NYC, NY
RSolaris DB2 UDB Database Administrator
Responsibilities/Deliverables:
- Responsible to take care of DB2 database wif 3.2 TB in R/3 and BW environments on Solaris 9. I was also responsible to provide support to DBG SAP Basis team in performing day to day database activities.
- Worked on R/3 and BW environment (Development/Testing and Production).
- Supported database activities in implementing Dual Landscape in Production and Development phases.
- Maintained Instances, databases, table spaces, in DB2UDB for developers.
- Installed new DB2 subsystems on Solaris SAP based environments.
- Setup and modified database manager configuration parameters and database configuration parameters.
- Supported R/3 and B/W teams in performing day to day activities.
- Cleaned up Transaction log as and when needed.
- Used DBA cockpit to monitor and tune Staging and production Database in a daily fashion.
- Supported High Availability in Production and Quality Analyst Testing Environment through Failover Schemes.
- Performed Data modeling (logical and physical data modeling using ERWIN).
- Experimented wif Indexes and employed Index Advisor to improve user report and speed ETL runtime.
- Used REORGCHK, REORG and RUNSTATS to optimize system performance.
- Designed ERD’s using ERWIN.
- Migrated databases from V 8.2 to V 9.2 in UNIX environment.
- Tweaked the Instance level and Database level configuration parameters to optimize the system performance.
- Responsible for backup, restore and migrating data between different databases/servers.
- Executed shell scripts to perform redundant data base activities.
- Administered user groups to execute certain fenced routines and functions
- Performed Database sizing, table spaces, indexes and log spaces design & implementation.
- Provided Database security & Audit Design, test & implementation.
- Set up DB2 UDB/Solaris production and development environments.
- Database maintenance for development, and synchronizing it wif the production database.
- Administered Solaris for Database boxes.
Confidential
AIX- DB2 UDB Developer
Responsibilities/Deliverables:
- Installed, configured and provided support to production and development side using a 1.5 TB DB2UDB v 8.2 Enterprise Edition for AIX 4L .
- Also developed shell scripts for installing DB2 software, configuring instances, creating databases.
- Troubleshot and fixed both development and operational systems (Development/Testing and Production).
- Created and maintained Instances, databases, tablespaces, schemas (both administrative and development) in DB2UDB for developers.
- Setup and modified database manager configuration parameters and database configuration parameters.
- Worked wif Logical and physical data modeling group.
- Designed Data modeling (logical and physical data modeling using ERWIN).
- Experimented wif Indexes and employed Index Advisor to improve user report and speed ETL runtime.
- Used REORGCHK, REORG and RUNSTATS to further performance goals.
- Designed ERD’s using ERWIN.
- Analyzed user requirements to design star schema to implement Data Mart.
- Responsible for backup, restore and migrating data between different databases/servers.
- Worked on Database maintenance (Production 24 x 7) for web applications
- Performed Database sizing, tablespaces, indexes and log spaces design & implementation work.
- Provided Database security & Audit Design, test & implementation.
- Set up DB2 UDB/AIX production and development environments.
- Database maintenance for development, and synchronizing it wif the production database.
- Database House keeping jobs (development database) scripts (Unix Shell Scripts, Cron, & SQL) for automated clean up every week.
- Administered AIX, Windows for Database boxes.