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Dell Storage with Microsoft Storage Spaces Best Practices Guide

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Deduplication

Deduplication is a method of reducing storage needs by eliminating redundant data. Deduplication is supported on SOFS, however, there are some important caveats including the fact that it is not supported on Hyper-V hosts or hosts running SQL server. The only exception is VDI VHDs.

Great candidates for deduplication:
  • Folder redirection servers
  • Software deployment shares
  • SQL Server and Exchange Server backup volumes
  • VDI VHDs
Deduplication must be evaluated based on the following content:
  • Line-of-business servers
  • Static content providers
  • Web servers
  • High-performance computing (HPC)
Not good candidates for deduplication:
  • Hyper-V hosts
  • WSUS
  • Servers running SQL Server or Exchange Server
  • Files approaching or larger than 1 TB in size

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