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Published byArlene Stafford Modified over 9 years ago
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SQL Server 2005/8/R2 Instance SQL Server 2014 Instance
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SQL Server 2005: SP4 is required SQL Server 2008: SP2 is required SQL Server 2008 R2: SP1 is required SQL Server 2012: SP1 is required Sufficient disk space must be available for SQL Server 2014 Not supported: 32-bit to 64-bit (x86 to x64) versions and vice versa Supported version of the Windows operating system
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Compare and Verify SQL Server 2005/8/R2/2012 Instance SQL Server 2014 Instance Verified!
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Pros Easier, mostly automated Generally fast overall process System data upgraded May require no additional hardware Applications remain pointing to same server/database name Cons Less granular control over upgrade process – all or nothing Instance remains offline during part of upgrade Not best practice for all components Complex rollback strategy
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Pros More granular control over upgrade process Database level Can be used to perform test migration Document process & gather metrics Ability to run systems side-by-side for parallel runs May require 3 rd party application to keep both in-sync Relatively straightforward rollback strategy Can leverage failover/switchover to reduce downtime Upgrade over time Cons Usually require additional hardware Additional resources required if on same server Server/database name changes Not practical for VLDB unless utilizing SAN (hybrid approach) Beware of “loss of quick roll-back”
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1. Before upgrade, make a backup of the user databases and data 2. Upgrade complete, perform backups 3. After configuration changes, take full database backups 4. After user acceptance and validation, take full database backups
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Check the legacy SQL Server versions Make sure that installation requirements are met Preinstall.NET and Windows components Preinstall Visual Studio 2008 SP1 or a later version Preinstall SQL Server 2014 common components Select the optimal side-by-side upgrade strategy Use new service accounts Check data consistency Back up data before and after the upgrade
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Upgrading each node, one at a time Hardware and software upgrade, do a side-by-side Upgrade passive cluster nodes first Upgrade at least half of the passive cluster nodes Stop all traffic for the SQL Server instance, to ensure a consistent state Brief outage is required to upgrade
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StepTaskComputerSQL Server Version 1Create a Test EnvironmentBaselineSQL Server 2005/2008/2008R2/2012 2Capture a PlaybackBaselineSQL Server 2005/2008/2008R2/2012 3Setup Playback Baseline SystemBaselineSQL Server 2005/2008/2008R2/2012 4Run Upgrade AdvisorBaselineSQL Server 2005/2008/2008R2/2012 5Replay Trace on SQL Server 2005/2008/2008R2/2012 BaselineSQL Server 2005/2008/2008R2/2012 6Setup Playback Test SystemBaseline to TestSQL Server 2005/2008/2008R2/2012 7Upgrade to SQL Server 2014TestUpgrade to SQL Server 2014 8Run Test Trace PlaybackTestSQL Server 2014 9Compare and AnalyzeTestSQL Server 2014
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Wizard to deploy DB to SQL Server in Azure VM Wizard to deploy DB to Azure SQL Database
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DB on-premise Backup to Azure SQL Server Backup to URL Automated SQL Server Backup Policy DB on-premise Auto backup to Azure Agent decides when do backups Simple configuration Manage at database level or instance level
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