Db2 for z/OS: Systems Administration Eğitimi

A working knowledge of TSO/ISPF and a basic understanding of SQL and Db2 objects (databases, tables, indexes, etc.) used in Db2 systems.

• describe the address space structure and components of a Db2 subsystem
• understand the Db2 installation process
• identify Db2 functions that best suit the requirements of their site
• implement security for the Db2 system
• understand and implement Db2 system and data recovery and restart procedures
• understand the control and use Db2 trace information to perform system and application tuning
• understand the basic problem determination tools.

Db2 System Architecture

Architecture overview; Working Storage Areas; Buffer, Sort, RID & EDM pools; Buffer Pools - 64 bit addressing; EDM pool; Sort pool; RID pool; Db2 Attachments; System data sets & databases; Db2 objects; Object characteristics; SQL overview; Db2 Interactive (Db2); Basic Db2 operations; Db2 commands; Db2i commands panel.

Db2 System Installation, Migration & Modification

Definitions; Db2 modes: migration to Db2 10, migration to Db2 11; Installation / Migration steps; DASD storage requirements; Storage estimates: Db2 system, Db2 datasets; Virtual storage requirements; Buffer, Sort & RID pool storage; EDM pool storage; The major Installation / Migration tasks; Loading DB2 libraries (the SMP/E process); The installation CLIST; Invoking the installation CLIST; Updating the CLIST defaults (DSNTIJXZ); DSNTIPA1 - Installation CLIST Main Panel; DSNTIP0A - data sharing options (Type INSTALL); DSNTIP0B - data sharing options (Type MIGRATE); Installation CLIST Panels: Db2 10, Db2 11; DSNTIPC, DSNTIPC1 - CLIST calculations; The customised jobs; Migration considerations ; Pre-migration queries (DSNTIJPM); Migration compatibility; Migration tasks; Prerequisites & maintenance level of current system; Migration steps; Fallback; Enable New Function Mode jobs; Updating Db2 - using the installation CLIST; Updating Db2 - modifying job DSNTIJUZ; Invoking modified parameters; -SET SYSPARM command.

Connecting to Db2

Db2 Attachments; Db2 connections (Attachments); Universal Language Interface Module (DSNULI); DSNULI entry points; TSO Attachment; Job DSNTIJVC - Build the CLIST library; Make libraries available to TSO; Connect Db2i panels to main panel; Invoking TSO Attachment; CICS Attachment; CICS / Db2 connection; Defining Db2CONN; Defining Db2ENTRY; Defining Db2TRAN; Controlling CICS Attachment; IMS Attachment; IMS Subsystem Member (SSM); Subsystem Member relationships; Resource Translation Table (RTT); Controlling IMS attachment.

Db2 Security Administration

Security overview; Address space authorisation; Protected access profiles; Permitting RACF access; Protecting Db2 datasets; Security management (Db2 or RACF); Security strategy (Transaction Manager or Db2); Security management (centralised or decentralised); Traditional Db2 security mechanism; Security terminology; Authorisation id; Maintaining security; Data Control Language; Grouped privileges; Additional administrative privileges; Explicit & implicit privileges; Ownership considerations; Level of access; Using VIEWs; Multi-Level Security overview; Security labels; Row level granularity; Multi-Level Security and SELECT; Multi-Level Security and INSERT; Multi-Level Security and UPDATE; Multi-Level Security and DELETE; Multi-Level Security and utilities; Row and column access; Row permissions; Column masks; Db2 security using RACF profiles; RACF / Db2 External Security Module; Installation; Mapping DB2 authorisation checks; Scope of RACF classes; Multi-subsystem scope classes; Single subsystem scope classes; Customisation; Db2 objects and RACF classes; Profiles.

Db2 Logging

Db2 Logging; Db2 log processing; Unit Of Recovery; Two-phase commit protocol; Active Log parameters; Checkpoint parameters; Checkpoint records; Logging commands - SET LOG; Logging commands - DISPLAY; Logging commands - ARCHIVE.

Db2 Data Recovery

Backup & recovery components; Invoking online utilities using Db2i; Invoking utilities - dataset names; Invoking utilities - control statements; Controlling utilities using Db2i; COPY utility; COPYTOCOPY; MERGECOPY utility; QUIESCE utility; RECOVER utility; Point-In-Time recovery; REBUILD INDEX utility; REPORT utility; MODIFY utility; Other online utilities; Stand-alone utilities (service aids); Catalog & directory recovery; Catalog & directory point in time recovery; P-I-T recovery implications.

Db2 Shutdown, Startup & Recovery

Db2 command format; Starting Db2; Integrity - normal termination; Integrity - abnormal termination; Log Initialisation; Current Status Rebuild; Forward Log Recovery; Backward Log Recovery; Processing log records; In-doubt resolution; Deferred restart: effect on committed UORs, effect on in-flight UORs; Delaying backout of long running tasks; Effect of delaying backout; Conditional restart: Control Record, log Truncation / limit restart, bypass backout / cold start; Conditional restart implications; Maintaining data integrity with conditional restart; Stopping Db2; BACKUP SYSTEM utility; BACKUP SYSTEM control data; RESTORE SYSTEM utility; Restoring to a point in time.

Db2 Monitoring & Control

Db2 commands; Controlling the Db2 subsystem; Controlling the IRLM; Controlling the TSO Attachment; Controlling the CICS Attachment; Controlling the IMS Attachment; Issuing commands using Db2 Interactive; Controlling Distributed Data Facility; Controlling logging; Controlling buffer pools; Controlling data sharing; Controlling utilities; Controlling Resource Limit Facility; Controlling databases; Controlling threads; Controlling procedures; Controlling functions; Db2 traces; Trace classes; Controlling traces.

Problem Determination

Basic code structure; Db2 subcomponents; Db2 control block structure; Db2 page sets; Page set structure; Index structure; Index keys and pointers; Data navigation; RIDs, map ids, pointers and holes; Row headers; Row data format; Versions and system pages; OBDREC entries; Version examples; Identifying and handling problems; Basic dump analysis; Diagnosis tools: traces, utilities; Possible problem areas; Active log out of space; Active log I/O errors; Archive log I/O errors; BSDS errors; Forced single BSDS mode; Recovering BSDS; Data errors; Down level datasets.

Performance Overview

What is 'performance'?; Performance objectives; Workload categories; Service Level Agreements; Performance factors; System parameters; EDM pool size; Buffer pool sizes; Buffer pool thresholds; Buffer pool development; Database design factors; Application design factors; Db2 traces.