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Introductie Windows Server 2016

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76 C H A P T E R 3 | Storage Scenario 4: Storage node restart or maintenance In this scenario, Storage Spaces does not automatically retire physical drives from the storage pool for the reasons described earlier in scenario 3. When the storage node comes back online, Storage Spaces automatically updates all extents that are not up to date with the copies that were unaffected by the restart or maintenance. Scenario 5: Permanent storage node failure In this scenario, Storage Spaces requires the administrator to retire all of the affected physical drives from the storage pool, add additional storage nodes to the storage system if needed, and then begin repair. This is not an automatic process because Storage Spaces does not know if the failure is temporary or permanent. It is not desired to initiate a repair that could potentially result in significant repair activity. Learn more You can find more details about Storage Spaces Direct in Windows Server 2016 Technical Preview from Microsoft TechNet (https://technet.microsoft.com/library/mt126109.aspx). The guide includes a detailed walkthrough using Windows PowerShell showing you how to install and configure Storage Spaces Direct in the Windows Server 2016 Technical Preview. Deduplication In Windows Server 2016 Technical Preview Deduplication, the core focus is to have significant impact on the scale and performance that you can address with this technology. With this shift in focus, you can now use Windows Server 2016 Technical Preview in the following scenarios: Volumes up to 64 TB File sizes up to 1 TB Virtualized backup Nano server support Rolling cluster upgrades Since deduplication was introduced in Windows Server 2012, the core principles for getting the data to a chunked state have remained the same, now let us address what has changed that makes these new scenarios possible. The optimization engine has been upgraded from single thread to multiparallel thread using multiple I/O streams, as shown in Figure 3-12.

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