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DB2 System Administration
Mainframe DB2 system support involves managing the DB2 database system on IBM z/OS platforms, encompassing aspects like installation, upgrades, configuration, performance tuning, and troubleshooting. It requires expertise in various DB2 technologies and tools to ensure the database’s continuous availability, scalability, and security.
Here’s a more detailed look at the aspects of Mainframe DB2 system support:
Key Responsibilities:
| Responsibility | Description |
|---|---|
| Installation and Configuration | Setting up new DB2 instances, configuring z/OS parameters, and ensuring the DB2 environment is properly configured. |
| Upgrades and Migrations | Applying DB2 updates, upgrades, and performing software migrations (e.g., from V12 to V13). |
| Backup and Recovery | Implementing backup and recovery strategies, including image copies, FLASH, and mirroring, to protect against data loss. |
| Performance Tuning | Identifying and resolving performance bottlenecks using tools like IBM Omegamon, CA Insight, and BMC Mainview, and optimizing DB2 system parameters. |
| Troubleshooting | Diagnosing and resolving DB2 system issues, including error handling and managing Problem/Program Analysis Records (PARs). |
| Security | Implementing and maintaining DB2 security measures, such as access controls and encryption. |
| Monitoring | Using monitoring tools to track the health and performance of DB2, including SMF, RMF, WLM, and performance reports. |
| DB2 Connect | Supporting applications that access DB2 data on z/OS using DB2 Connect clients or servers. |
| Utilities | Working with DB2 utilities such as REORG, RUNSTATS, LOAD, and UNLOAD. |
| Coding and Scripting | Utilizing languages like REXX and CLIST to automate tasks and manage DB2. |
| Interface with Other Systems | Working with CICS/IMS-DB2 interfaces and other related technologies. |