Storage Spaces Direct with the CSV in-memory read cache


Storage Spaces Direct with the CSV in-memory read cache

  • Storage Spaces Direct is compatible with the Cluster Shared Volume (CSV) in-memory read cache. Using system memory to cache reads can significantly improve performance for applications like Hyper-V, which uses unbuffered I/O to access VHD or VHDX files.
  • Because the in-memory cache is server-local, it improves data locality for hyper-converged Storage Spaces Direct deployments:

 

Configuring the in-memory read cache

  1. (Get-Cluster).BlockCacheSize
    1. To see how much memory is being used for CSV in-memory read cache
  2. (Get-Cluster).BlockCacheSize = 2048
    1. To change how much memory MB

 

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