Download Upgrading to SQL Server 2008

Upgrading to SQL Server
2008
Graeme Scott
Technology Solution Professional
Microsoft Corporation
CONTENT
Why Upgrade?
Upgrade Options
Upgrade Tools
Upgrade Planning
Why Upgrade?
Upgrade Options
Upgrade Tools
Upgrade Planning
WHY UPGRADE?
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Transparent Data Encryption
Extensible Key Management
Data Auditing
Pluggable CPU
Transparent Failover for
Database Mirroring
Policy Management
Server Group Management
Streamlined Installation
Enterprise System Management
Performance Data Collection
System Analysis
Data Compression
Query Optimization Modes
Resource Governor
Entity Data Model
LINQ
Visual Entity Designer
Entity Aware Adapters
SQL Server Change Tracking
Synchronized Programming Model
Visual Studio Support
FILESTREAM data storage
SQL Server Conflict Detection
Integrated Full Text Search
Sparse Columns
Large User Defined Types
Date/Time Data Type
SPATIAL data types
Virtual Earth Integration
Enterprise Reporting
Engine
Internet Report
Deployment
Block Computations
Scale out Analysis
BI Platform Management
Export to Word and Excel
Author reports in Word
and Excel
Partitioned Table Parallelism
Report Builder
Enhancements
Query Optimizations
TABLIX
Persistent Lookups
Rich Formatted Data
Change Data Capture
Personalized
Perspectives
Backup Compression
… and many more
MERGE SQL Statement
Data Profiling
Star Join
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Transparent Data Encryption
Extensible Key Management
Data Auditing
Pluggable CPU
Database Mirroring
Enhancements
Policy Management
Single Server Administration
Streamlined Installation
Enterprise System Management
Performance Data Collection
System Analysis
Data Compression
Query Optimization Modes
Resource Governor
Entity Data Model
LINQ
Visual Entity Designer
Entity Aware Adapters
SQL Server Change Tracking
Synchronized Programming Model
Visual Studio Support
FILESTREAM data storage
SQL Server Conflict Detection
Integrated Full Text Search
Sparse Columns
Large User Defined Types
Date/Time Data Type
SPATIAL data types
Virtual Earth Integration
Enterprise Reporting
Engine
Internet Report
Deployment
Block Computations
Scale out Analysis
BI Platform Management
Export to Word and Excel
Author reports in Word
and Excel
Partitioned Table Parallelism
Report Builder
Enhancements
Query Optimizations
TABLIX
Persistent Lookups
Rich Formatted Data
Change Data Capture
Personalized
Perspectives
Backup Compression
… and many more
MERGE SQL Statement
Data Profiling
Star Join
Why Upgrade?
Upgrade Options
Upgrade Tools
Upgrade Planning
UPGRADE OPTIONS
Upgrading from SQL Server 2000
2000 – 2005 - 2008
 A possible option if ISV
applications are not initially
supported on SQL 2008
 The upgrade delta to SQL 2008
is smaller from SQL 2005
compared to SQL 2000
2 upgrades needed
2000 - 2008
 Only 1 upgrade needed
 Latest capabilities and
security with SQL 2008
Major Changes for Dev/DBA
Deprecated Features now
removed
Upgrade Paths
Components
• Database Engine
• Reporting
Services
• Notification
Services not in
2008
• Analysis
Services
• Data
Transformation
Services/
Integration
Services
Editions
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Workgroup
Express
Standard
Developer
Enterprise
Platforms
• 32-bit
• 64-bit
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In Place Upgrade
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Updates an existing installation while
preserving user data
Instance name remains the same
Automated process
Similar to 20002005 upgrade
In Place Upgrade
Pros
Cons
• Easier, mostly automated
• Generally fast overall
process
• Requires no additional
hardware
• Applications remain
pointing to same
server/database name
• Instance name can
remain unchanged
• Less granular control
over upgrade process
• All databases on the
instance are upgraded in
one pass
• Instance remains offline
during part of upgrade
• Not best practice for all
components
• Complex rollback
strategy
Side by Side Upgrade
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Similar to 20002005 migrate (side-byside)
Install new instance of SQL Server 2008
Database objects are copied between
instances
Can be same server (named instance) or
different server
Mostly Manual process
Side by Side Upgrade
Pros
• More granular control over
upgrade process
• Can be used to perform test
migration
• Ability to run systems sideby-side for testing and
verification
• Relatively straightforward
rollback Strategy
• Can leverage
failover/switchover to
reduce downtime
Cons
• Usually require additional
hardware
• Server/database name
changes
• Not practical for VLDB
unless utilizing SAN
Upgrading Business Intelligence
2000 – 2005
2005 – 2008
2000 - 2008
Analysis Services
Different
architecture and
designer
Small refinements
Different
architecture and
designer
Reporting
Services
Issues with
custom IIS/ SSRS
settings
No dependency
on IIS
Issues with
custom IIS/ SSRS
settings
Data
Transformation
Services (DTS)
Runs natively
Runs natively
Runs natively
Integration
Services (SSIS)
DTS to SSIS
Small refinements
Everything has
changed
Everything has
changed
Everything has
changed
Why Upgrade?
Upgrade Options
Upgrade Tools
Upgrade Planning
UPGRADE TOOLS
Upgrade Advisor Overview
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Analyzes
− Configurations, databases, objects and components on
a SQL instance
− Trace files (captured using Profiler / SQL Trace)
− T-SQL scripts (any script file)
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Generates Detailed Issue Report:
− Before – potential showstoppers, must resolve before
upgrading
− After – should be resolved after completing upgrade
− Anytime, will prevent the upgrade process
− Advisory – notices and/or warnings
Upgrade Advisor
− Analyzes:
− SQL Server 2000/2005 databases
− Analysis Services databases
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Read-only operation, can be CPU intensive
Supports remote execution
Supports default and named instance
Requires .NET framework 2.0 sp1 or later
Download latest version from web!
Upgrade Advisor
DEMO
Running the Upgrade Advisor
Running the Upgrade Advisor
Running the Upgrade Advisor
Running the Upgrade Advisor
Running the Upgrade Advisor
Running the Upgrade Advisor
Running the Upgrade Advisor
Running the Upgrade Advisor
Upgrade Advisor has limitations
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Upgrade Advisor does not detect issues with:
− Dynamic SQL
− Meta-data driven applications (both during application
setup and regular use)
− Changes in system objects (stored procedures,
functions, tables, etc…) but uses the same name
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Upgrade Advisor does not have rules for all
known issues
− or any “yet to be known” issues
Application Compatibility Testing (ACT)
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Tool developed by the Scalability Experts
with the SQL Server product team
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Two separate tools available for SQL 2005 /
2008
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Focuses on workload performance on SQL
2008
ACT Process
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Capture a profiler trace of a realistic workload
from a production / pre-production environment
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Use the ACT tool to replay the trace in a preproduction environment to form a performance
baseline
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Either side-by-side or on separate machines, use
the ACT tool to replay the SQL trace file on a SQL
2008 instance to measure performance
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ACT Process
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View any performance differences in the ACT tool
Playback Results Analyzer (PRA)
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Can also be used to verify performance differences
when moving from 32Bit to 64Bit infrastructure.
ACT Output - (PRA)
Why Upgrade?
Upgrade Options
Upgrade Tools
Upgrade Planning
UPGRADE PLANNING
Outline Upgrade Plan
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Identify the SQL components to be upgraded
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Use the Upgrade Advisor / ACT tools
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Form an overall upgrade strategy
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Decide on the upgrade process for SQL Server
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in place / side by side
Identify post upgrade considerations
Pre Upgrade Preparation
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Document existing solution
Capture performance baseline data
Develop criteria and unit / verification tests
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Optional: capture query plans for complex queries
Ensure Clean Environment
Backup old instance / database and Verify it!
Loop in Windows Administrators, SAN
Administrators and Network Operations
Optional: Access to Support
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Performing the Upgrade
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Document EVERY step to the last detail and
follow the document
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Monitor upgrade progress
− Check upgrade timing and compare to tested timing
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Check database consistency
Immediate Post Upgrade Tasks
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Review all logs
Change the database compatibility level
Change the PAGE_VERIFY option
Revisit Upgrade Advisor recommendations
Update statistics to ensure performance
Reconfigure Log Shipping
Re-populate Full-Text catalogs
Verify Agent jobs and maintenance tasks
Verify security settings, especially cross server
and/or cross-domain access privileges
Longer Term Post Upgrade Tasks
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Re-evaluate statistics
Check Optimizer Hints
Database Tuning Advisor
Leverage New ‘Low Cost’ Features
− Backup compression
− Transparent Data Encryption
Make use of schemas
Plan DTS Migration
Summary
Upgrades are not rocket science but…
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The smallest detail missed can break the entire
upgrade
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Use the Upgrade Advisor / Application
Compatibility Testing tools
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A tested rollback plan is essential
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Don’t jump to conclusions if performance issues
are encountered
Call to Action
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SQL Server 2008
http://www.microsoft.com/sql/2008/default.mspx
SQL Server 2005 Upgrade Advisor
http://www.microsoft.com/downloads/details.aspx?familyid=1470e86b7e05-4322-a677-95ab44f12d75&displaylang=en
SQL Server 2008 Upgrade Advisor
http://www.microsoft.com/downloads/details.aspx?FamilyID=f5a6c5e94cd9-4e42-a21c-7291e7f0f852&DisplayLang=en
Application Compatibility Testing tool
http://ssua.scalabilityexperts.com/
DTS Migration Tool
http://dtsxchange.com/
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