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What is the maximum configurable SSD cache size on E-Series storage systems?

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Applies to

  • NetApp E-Series
  • Flash Read Cache (FRC)
  • SANtricity OS 11.80GA or later

Answer

Maximum amount of configurable SSD cache for an array is related to the controller's primary cache size. This chart shows the amount of SSD cache configurable for various primary cache size of the controllers:

 

SANtricity OS 11.80GA or later
Controller Cache Size Configurable SSD Cache Size
Up to 2 GB 1 TB
> 2 GB to 4 GB 4 TB
> 4 GB to 8GB 5 TB
> 8 GB 10 TB

 

SANtricity OS 11.70.5R1 or earlier
Controller Cache Size Configurable SSD Cache Size
Up to 1 GB 1 TB
> 1 GB to 2 GB 2 TB
> 4 GB to 8 GB 4 TB
> 8 GB 8 TB

Additional Information

  • Controller's primary cache size will be smaller than the controller installed memory size
  • The size difference will vary depending on the release version and array configuration.

 

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