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MODULE 2DATABASE INSTALLATION AND CONFIGURATIONSection 1: DBMS Installation

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0DBMS INSTALLATION BASICS

Understand the prerequisites for the specific version of DBMS Version of the operating system Hardware components: cpu, memory, available

storage Related software: java, network

Read the installation guide Understand the installation process and

procedure Follow the explicit instructions

Mechanics of the installation process is a relative simple affair

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HARDWARE REQUIREMENTS

Basic CPU requirements: minimum processor speed

Storage requirements: available free space, backup DBMS software itself: 1 – 2 GB depending on OS Database: size of applications and data

Memory requirements: amount of memory Memory structures: data cache, data dictionary,

SGA Application data request -> read the data in the

disk -> copy the data to the memory -> process the data -> write the modified data from memory to disk

Available swap space

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DBMS CONFIGURATION

Understand DBMS components Installation user privilege: Windows –

administration role; UNIX – unlimited resource, a special group

Licensed DBMS components: partition, spatial, enterprise

Platform version requirement: Windows XP or higher, HP-UX 11, Solaris 10, AIX

Operating system requirement: patches, kernel parameters, message queue, DLL files

Program requirement: C++, Cobol, Perl Define the initial settings

Inputs during the installation process Installation configuration file

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0DBMS INSTALLATION

VERIFICATION

Ensure the clear understanding of all error messages or popup windows

Take screen shots of all questionable error messages or popup windows

Review installation log files Run tests if possible

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UPGRADE AND PATCH

DBMS version – major change, such as Oracle 11g or SQL Server 2008

Release – major function enhancement Patch – bug fixes Example:

Oracle 11.2.1 (Version 11, Release number 2, Patch release number 1)

SQL Server 2008 SP1 CU6 (Version 2008, Release of Service Patch 1, Patch of Cumulative Update package 6)

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DBMS CHANGE CONSIDERATION

Database structure changes, application features changes

Planning for DBMS changes Testing environment establishment Regression testing of applications: functions,

performance Downtime and lost business opportunities during the

DBMS change. Supporting software products may lack immediate

support: purchased applications, DBA tools, query tools, interface programs

Cost of Change Cost of the new version might be changed Planning, installing, testing, and deploying in both

DBMS and applications using databases

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DATABASE STANDARDS AND PROCEDURES

Standards – common practices that ensure the consistency and effectiveness of the database environment Database naming conventions

Names of database, data files, objects (table, index, procedure, trigger, etc.)

Length of names Abbreviation

Roles and responsibilities Database application development standards: coding

standards, performance tips and techniques Procedures – scripts and processes for handling

specific events Application migration procedures Design review process

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MODULE 2DATABASE INSTALLATION AND CONFIGURATIONSection 2: Oracle Installation

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OPTIMAL FLEXIBLE ARCHITECTURE (OFA)

Organize large amounts of complicated software and data on disk, to avoid device bottlenecks and poor performance

Facilitate routine administrative tasks such as software and data backup, which are often vulnerable to data corruption

Facilitate switching between multiple Oracle databases

Adequately manage and administer database growth

Help eliminate fragmentation of free space in the data dictionary, isolate other fragmentation, and minimize resource contention

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FILE NAMING STANDARDSFa

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FILE STRUCTURES FOR ORACLE

Windows – Take defaults as much as possible UNIX – Company standards, examples

Software - /u01/app/oracle/product/10.2.0Administrative files -

/u01/app/oracle/admin/hrdbDatabase files -

/u02/oradata/hrdb/control01.ctl

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FILE STRUCTURES FOR ORACLE

Path to Oracle software is called ORACLE_HOME containing Oracle binaries Defined as a variable within your system

E.g. ORACLE_HOME/bin/runnit.exe Each installation has its own ORACLE_HOME Examples:

C:\oracle\product\11.2.0\db1 c:\oracle\product\11.2.0\client1

Contains a bin directory that holds most of the executables

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ORACLE HOMEFa

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INSTALLING THE SOFTWARE

Advanced Installation Select Installation Type: Enterprise Edition Select Configuration Option: Install database

software only

Note: Some of the slides are from Oracle 10g Database Administrator: Implementation and Administration by Gavin Powell and Carol McCullough-Dieter

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