Search the VMware Knowledge Base (KB)
View by Article ID

ESXi fails to identify a device as SSD (2008938)

  • 3 Ratings


The message is received when an ESXi host fails to identify a storage device as a Solid State Disk (SSD). Typically, this happens when your storage array does not support an automatic SSD device detection provided by ESXi.


If the ESXi host does not automatically identify a device as SSD, the device cannot be used to allocate space for host cache.


You can use PSA SATP claim rules to tag SSD devices that are not detected automatically. For information on how to tag devices as SSD, see the Tag Devices as SSD  topic in the vSphere Storage documentaiton.

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


  • 3 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.

What can we do to improve this information? (4000 or fewer characters)

Please enter the Captcha code before clicking Submit.
  • 3 Ratings