Wei Liu(Gary)

Phone: +86 15051447464

Email:  liuwei4057@126.com

Personal Blog: http://space.itpub.net/628922

I have been working as an Oracle DBA for more than 7 years. Implemented quality solutions and maintained robust, mission critical databases. I have followed the industry’s best practices and adhered to and implemented processes which enhanced the quality of technical delivery.I am also A member of Independent Oracle Users Group and  All China Oracle Users Group.

• Over 6 years experience with Oracle DBA technology
• Over 7 years experience with Linux technology
• Member Independent Oracle Users Group
• Member All China Oracle Users Group
• Presents for advanced Oracle topics: RAC, DataGuard, Performance Tuning and Oracle Internal.

Summary of Skills and Experience

1. Oracle 9i/10G/11G Database Administration.
2. Oracle 9i/10G/11G Server Installation and Configuration.
3. Oracle Goldengate Configuration and Utilization.
4. Oracle-Sun Exadata-2 Machine Administrate,Utilization and Upgrade
5. Production DBA Support.
6. Sound Expertise in Database Backup and Recovery.
7. Strong RMAN skills.
8. Strong Skills in RAC configuration and architecture.
9. Database Migration, Cloning and Patching.
10. Support large development projects, support application releases in development, staging, integration and production environments.
11. Architecting multi terabyte/multi-node oracle RAC databases, designing schemas, solutions for data loading, data purging, replication, BCP setups. Identifying/recommending/testing required hardware (Interconnect, storage (NAS/SAN), server, CPU, memory) for large systems.
12. Research/Compare database technologies, determines business requirements, proposes changes, and develops migration and implementation plans.
13. Work along with Global DBA/Architect teams to develop and design best practices and processes.
14. Strong Skills in Operating System /Application Tuning /SQL tuning for High Performance.
15. UNIX System Administration /Shell Scripting for Database maintenance.

OPERATING SYSTEMS

Sun Solaris, IBM AIX, Windows NT Servers, Windows 2003, LINUX (Red hat,OEL)

LANGUAGES & SOFTWARE

C, Sql/PL-SQL, Unix Shell Scripting, Oracle, VERITAS backup for oracle DB

DBA Tools

TOAD, Spotlight, OEM,  SQL*DEVELOPER

Education Details:

Year	Name of Degree	Name of Inst.	Place
2003	Computer Science Bachelor	TUTE	Tianjin

Technical Trainings / Additional courses / Seminars attended:

Oracle Database 10g:Administration Workshop – Oracle University

Oracle 10g Data Guard Administration – Oracle University

Oracle 10g RAC Course – Oracle Corporation

Oracle 10g Backup and Recovery LWC – Oracle Universitry

Oracle 11g New Features for 9i DBA – Oracle Universitry

 

Work Experience:

Consultant Service(2007-2008)

1. Diagnosing, correcting and providing solutions for critical Database Administration related issues.
2. participate database design and build effort. Analyse existing database design, propose solutions and manage implementation activities.
3. Installation/configuring large oracle RAC databases, setting up services, load balancing, applying patches, resolving Oracle internal errors, and RAC related Bugs.
4. Set up monitoring using custom shell scripts and OEM Grid Control.
5. Setting up standby/data guard systems for production BCP.
6. Supporting new application releases/builds through various development environments, identifying slow performing sql, tuning the SQL/PL-SQL.
7. Production On-Call support for numerous oracle databases. Supporting databases for the size of 120TB.
8. Setting up RMAN, Export and snapshot backups for databases.
9. Work with application team during application design phase to help create robust and high performance applications. Helping with application turning, partitioning, data movement solutions etc.
10. Troubleshooting Oracle Server errors, analyzing internal errors (ora-600’s/7445’s) etc.
11. Analyzing stats pack/AWR reports for resolving performance issues.
12. Mentoring of Junior DBA Folks Technically for Managing the Environment Independently.
13. Proactively monitoring DB growth, and forecasting for future growth needs in terms of space, CPU, memory etc.
14. Hardware: Sun Fire Enterprise , Netapps & EMC storage, InfiBand Interconnect.
15. Operating System: Solaris 9/10
16. Tools: TOAD, OEM Grid Control, Putty

Tech(2008-2010)

1. Serve For both ShangHai UNICOM,China Mobile,ShangHai UNIONPAY Data Services and China Union Loyalty.
2. Provide advanced Tech Consultant
3. Coordinating with Oracle for bug fixes (iTars/SRs).
4. Tuning The telecom operators Boss Application.
5. Troubleshooting the data replicate software QUEST shareplex or oracle goldengate

Activities as System Administrator:

1. Installation of Solaris across systems, applying Sun recommended patches.
2. Creation of volumes, addition of new disks and hardware, maintaining the storage according to the requirements.
3. Machine-level tuning collecting server machine-level performance statistics to identify CPU, memory. Capacity planning of the server on 6 monthly basis.
4. Implemented security on UNIX as well as database and web server level.

Achievement:

1. TB size data migrated ,upgrade old system to NEW ERP arch
2. Patch more than 20 critical db from 9.2.0.x to 10g

Technologies Used: Veritas Volume Manager, Veritas Net Backup.

Hardware: Sun Sparc, IBM p570 p595 ,DS4800

Operating System: AIX 5.3/6.1 , Solaris 9/10

Tools: Toad, Spotlight for Oracle, Oracle DUL/AUL

Professional Certification: