9 Advanced features for storage  efficiency IBM Spectrum Virtualize running inside the IBM Storwize V5000 offers several functions for  storage optimization and efficiency.  This chapter introduces the basic concepts of those functions. It also provides a short  technical overview and implementation recommendations.  For more information about planning and configuration of storage efficiency features, see the  following publications. Some of these publications are dedicated to SAN Volume Controller  and Storwize V7000, but are still applicable to Storwize V5000 because it uses the same  principles: This chapter includes the following topics: ' Copyright IBM Corp. 2 019. All rights reserved. 435 GLYPH<SM590000> 9.6, “Saving estimation for compression and deduplication” on page 462 GLYPH<SM590000> 9.5, “Compression with standard pools” on page 460 GLYPH<SM590000> 9.4, “Data Reduction Pools” on page 452 GLYPH<SM590000> 9.3, “Unmap” on page 450 GLYPH<SM590000> 9.2, “Thin provisioned volumes” on page 448 GLYPH<SM590000> 9.1, “Easy Tier” on page 436 GLYPH<SM590000> Implementing IBM Easy Tier with IBM Real-time Compression , TIPS1072 GLYPH<SM590000> Implementing IBM Real-time Compression in SAN Volume Controller and IBM Storwize  V7000 , TIPS1083 GLYPH<SM590000> IBM System Storage SAN Volume Controller and Storwize V7000 Best Practices and  Performance Guidelines , SG24-7521 GLYPH<SM590000> IBM Real-time Compression in IBM SAN Volume Controller and IBM Storwize V7000 ,  REDP-4859 GLYPH<SM590000> Introduction and Implementation of Data Reduction Pools and Deduplication , SG24-8430