10 Advanced features for storage  efficiency IBM Spectrum Virtualize running inside the IBM SAN Volume Controller 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: This chapter includes the following topics: GLYPH<SM590000> IBM System Storage SAN Volume Controller and Storwize V7000 Best Practices and  Performance Guidelines , SG24-7521 GLYPH<SM590000> Introduction and Implementation of Data Reduction Pools and Deduplication , SG24-8430 GLYPH<SM590000> IBM Real-time Compression in IBM SAN Volume Controller and IBM Storwize V7000 ,  REDP-4859 GLYPH<SM590000> Implementing IBM Real-time Compression in SAN Volume Controller and IBM Storwize  V7000 , TIPS1083 GLYPH<SM590000> Implementing IBM Easy Tier with IBM Real-time Compression , TIPS1072 GLYPH<SM590000> Easy Tier GLYPH<SM590000> Thin-provisioned volumes GLYPH<SM590000> Unmap GLYPH<SM590000> DRPs GLYPH<SM590000> Compression with standard pools GLYPH<SM590000> Saving estimation for compression and deduplication GLYPH<SM590000> Data deduplication and compression on external storage ' Copyright IBM Corp. 2011, 2019. All rights reserved. 427