Cost: You can save costs by offloading software and hardware maintenance.This option is best for new applications or existing on-premises applications that want to use the latest stable SQL Server Database Engine features and that are migrated to the cloud with minimal changes. SQL Managed Instance is a collection of system and user databases with a shared set of resources that is lift-and-shift ready, and can be used for most migrations to the cloud. A managed instance closely resembles an on-premises SQL Server, without having to worry about such things as hardware failure, or patching. If you'd like to take advantage of offloading maintenance and cost, but find the feature set of an Azure SQL Database single database too limiting, you can move to SQL Managed Instance. Query Tuning Assistant can help to tune workloads that may experience adverse effects when upgrading the database compatibility.įor more information about new features in SQL Server 2022 (16.x), see SQL Server 2022 comparison.Data Migration Assistant can help detect compatibility issues that can affect database functionality in your new version of SQL Server. Database Experimentation Assistant can help evaluate the target version of SQL Server for a specific workload.Upgrade SQL Server using Installation Wizard.In-place OS upgrades aren't supported on failover cluster instances for Windows Server 2008 or Windows Server 2008 R2.Ĭluster OS rolling upgrades are available starting with Windows Server 2016. There's added risk during the OS upgrade process, so doing a side-by-side migration may be the more prudent, yet more costly, approach. There's also an inherent risk of running into issues during an in-place upgrade process.Ĭomplexity: If you're on an unsupported version of Windows Server, you also need to upgrade the OS as the newer versions of SQL Server may not be supported on those Windows versions. You have to buy, maintain, and manage your own hardware and software.ĭowntime: There could be downtime depending on your upgrade strategy. For more information, see Compatibility Certification.Ĭost: This approach requires the biggest up-front investment and the most ongoing management. An application only needs to be fully recertified when it needs to use features that are gated by a newer database compatibility setting. Low risk for database applications: When the database compatibility is at the same level as the legacy system, existing database applications are protected from functional and performance changes that can have detrimental effects. Wide applicability: Applicable for database applications of any kind, including OLTP systems and data warehousing. Latest technology: New SQL Server versions introduce innovations that include performance, scalability, and high-availability features, and improved security.Ĭontrol: You have the most control over features and scalability, because you manage both hardware and software.įamiliar environment: If you're upgrading from an older version of SQL Server, this environment is the most similar. This option gives you environmental consistency, allows you to use the latest feature set, and adopts the new version's support lifecycle. Once your SQL Server has reached the end of support, you can choose to upgrade to a newer and supported version of SQL Server. This article describes the benefits and considerations for each approach, with more resources to help guide your decision-making process.
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