Module 9: Database Administration for Highly Available

Systems

Overview

Developing a High Availability DBA Team

Managing SQL Server 2000 for High Availability

Maintenance, Monitoring, Support, and Troubleshooting

Lesson: Developing a High Availability DBA Team

Building a Team Identity

Sharing Ownership

Promoting Credibility Influence, and Stability

Promoting Continuous Learning

Building a Team Identity

Collective Responsibility

Constant Quality Evaluation

Sharing Ownership

Rotation

Effective Use of Spare Time

Brown Bag Presentations

Communication

Promoting Credibility, Influence, and Stability

Alert Messages

Team Website

Promoting Continuous Learning

Encourage Continuous Learning

Use Small Frequent Learning Tasks

Make Resources Available

Budget for Conferences

Encourage Shared Learning

Lesson: Managing SQL Server for High Availability

Managing Service Level Agreements

Keeping a Operations Guide

Managing the Services

Handling Response Time

Dynamic Tuning

Managing Backups

Managing Change: Theory

Controlling Change: Practice

Managing Service Level Agreements

Service Level Agreement Contents

Measuring Service Level Agreements

Commitment

Vendor Agreements

Measuring Success

Keeping an Operations Guide

SQL Server Administrative Information

Analysis Services Administrative Information

Application System Information

Database Components

Storage Components

Server Components

Up-to-date Operations Guide

Managing the Services

Service Login

Managing Services

The Service

Handling Response Time

Send E-mail Alert Messages to a Pre-defined Group Alias

Forward Events to Another Server

Standardize Alert Message Content

Standardize Message Handling

Store Server Registrations in One Location

Set Up Server-based Rules to Prioritize Alerts

Dynamic Tuning

Usage-based Performance Tuning

Dynamic management

Administrative control

Accuracy and responsiveness

Dynamic Feedback and Analysis

Setting within 10 percent of absolute optimal value

Highly adaptive system

Managing Backups

Process, Schedule, and Documentation

Storing, Testing, and Rotating Backups

Accidental Data Loss

Capturing Statistics on the Backup Process

Thinking of All Contingencies

Network traffic is reduced by backing up to a separatesegment

Isolated segment for backup

Tapedrive

ServerServer

Server

Backing Up User Databases

After Creating Databases

After Creating Indexes

After Clearing the Transaction Log

Full Database Backup Strategy

Created Database and Performed Full Database Backup

Full Database Backup Full Database Backup

SundaySunday MondayMonday TuesdayTuesday

DataLog

DataLog

DataLog

Differential Backup Strategy

MondayMonday TuesdayTuesday

Full DatabaseBackup

DifferentialBackup

DifferentialBackup

............LogData

Log Log Log Log Log Log

LogData

Database File or Filegroup Backup Strategy

MondayMonday TuesdayTuesday WednesdayWednesday ThursdayThursday

DataFile 1

DataFile 3

DataFile 2

Full DatabaseBackup

LogData

Log Log Log Log Log Log Log Log

Managing Change: Theory

Types of Change

Reconfigurations Enhancements Maintenance of emergency fixes Unmanaged changes

Process of Change

Test changes outside of production Record what happens when testing is impossible Have a contingency plan

Controlling Change: Practice

Baselines and Test Scripts

Reconfigurations and Upgrades

Enhancements, Releases, and Fixes

Notification

Handling Unmanaged Change

Alternate System Access During Change

Documenting Change

Lesson: Maintenance, Monitoring, Support, and Troubleshooting

Maintenance Basics

Online Database Console Commands

Intrusive Maintenance

Baselines and Trends

Perceived Unavailability

Supporting a Data Warehouse

Supporting a Production Database

Maintenance Basics

Documentation

Online Maintenance

Standardized Automated Maintenance

Script Library

Online Database Console Commands

Console Command Checklist

Using Time Effectively

Considering Performance Costs

Intrusive Maintenance

DBCC Processes

UPDATE STATISTICS FULLSCAN

SHOWCONTIG WITH TABLERESULTS, ALL_INDEXES

CHECKDB with options other than physical_only

DBREINDEX clustered index WITH NO_INFOMSGS or Drop/Create Index

SHOWCONTIG WITH TABLERESULTS, ALL_INDEXES

Baselines and Trends

Monitoring System Behavior

Baselining Steps

Establishing a Performance Baseline

Factors That Affect Performance

Server Hardware

Operating System

Network

SQL Server

Database Application

Client Application

Perceived Unavailability

Perceived Downtimes

Application Usage Spikes

Supporting a Data Warehouse

ETLM System Design

Cubes in Analysis Services

Recovery

Supporting a Production Database

Troubleshooting

Specific Procedures

Useful Resources

Additional Support

Review

Developing a High Availability DBA Team

Managing SQL Server 2000 for High Availability

Maintenance, Monitoring, Support and Troubleshooting