As a result, it is important to examine is a workload's expected read patterns to the deduplicated volume. What do my workload's I/O patterns to its dataset look like? What performance do I have for my workload?ĭata Deduplication optimizes files as a periodic job, rather than when the file is written to disk. Space savings percent (no compression): 4 Optimized files size (no compression): 11.47MB Running DDPEval.exe will return an output similar to the following: Data Deduplication Savings Evaluation ToolĬopyright 2011-2012 Microsoft Corporation. DDPEval can evaluate the potential for optimization against directly connected volumes (including local drives or Cluster Shared Volumes) and mapped or unmapped network shares. After installing Data Deduplication, you can find this tool at C:\Windows\System32\DDPEval.exe. If you're unsure about a workload, consider doing a pilot deployment of Data Deduplication on a test dataset for your workload to see how it performs.ĭoes my workload's dataset have enough duplication to benefit from enabling deduplication?īefore enabling Data Deduplication for a workload, investigate how much duplication your workload's dataset has by using the Data Deduplication Savings Evaluation tool, or DDPEval. To determine whether a workload works well with deduplication, answer the following questions. If you are running a recommended workload, you can skip this section and go to Enable Data Deduplication for your workload. For example, the following workloads could work well with deduplication, but you should evaluate the benefits of deduplication first:Įvaluate workloads for Data Deduplication Workloads that might benefit from deduplication, but aren't always good candidates for deduplication.Virtualized backup applications, such as Microsoft Data Protection Manager (DPM).Virtualized desktop infrastructure (VDI) servers.General purpose file servers (GPFS) serving shares such as team shares, user home folders, work folders, and software development shares.We recommend that you always enable Data Deduplication on these workloads: Recommended workloads that have been proven to have both datasets that benefit highly from deduplication and have resource consumption patterns that are compatible with Data Deduplication's post-processing model.There are two classes of workloads to consider: Before enabling deduplication, it is important that you understand the characteristics of your workload to ensure that you get the maximum performance out of your storage. Install-WindowsFeature -Name FS-Data-Deduplicationįrom a server running Windows Server 2016 or later, or from a Windows PC with the Remote Server Administration Tools (RSAT) installed, install Data Deduplication with an explicit reference to the server name (replace 'MyServer' with the real name of the server instance): Install-WindowsFeature -ComputerName -Name FS-Data-DeduplicationĬonnect remotely to the server instance with PowerShell remoting and install Data Deduplication by using DISM: Enter-PSSession -ComputerName MyServerĭism /online /enable-feature /featurename:dedup-core /allĮnable Data Deduplication Determine which workloads are candidates for Data Deduplicationĭata Deduplication can effectively minimize the costs of a server application's data consumption by reducing the amount of disk space consumed by redundant data. To install Data Deduplication, run the following PowerShell command as an administrator: Install Data Deduplication by using PowerShell Click Next until the Install button is active, and then click Install.In the Add Roles and Feature wizard, select Server Roles, and then select Data Deduplication.Install Data Deduplication by using Server Manager KB4025334 contains a roll up of fixes for Data Deduplication, including important reliability fixes, and we strongly recommend installing it when using Data Deduplication with Windows Server 2016.
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