Skip to main content
NetApp Response to Russia-Ukraine Cyber Threat
In response to the recent rise in cyber threat due to the Russian-Ukraine crisis, NetApp is actively monitoring the global security intelligence and updating our cybersecurity measures. We follow U.S. Federal Government guidance and remain on high alert. Customers are encouraged to monitor the Cybersecurity and Infrastructure Security (CISA) website for new information as it develops and remain on high alert.
NetApp Knowledge Base

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

Last Updated:


Applies to

E-Series Systems with SSDs to be used with SSD cache.


  • 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:
Controller Cache Size Configurable SSD Cache Size
< 1 GB 1 TB
 > 1 GB - 2 GB 2 TB
> 2 GB - 4 GB 4 TB
> 4 GB 5 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.
  • Current maximum is 5TB of SSD cache for any system configuration.
  • Primary cache size is equal to the cache of one controller in a redundant array.
  • Example: An array with two 2600 controllers with 2 GB of cache each will only be able to configure 2 TB of SSD cache.


Scan to view the article on your device