You might need to remove a virtual flash resource on a local SSD to use the device for another resource, such as Virtual SAN.
You cannot remove a virtual flash resource if it is configured with host swap cache or if the host has virtual machines configured with Flash Read Cache that are powered on.
- In the vSphere Web Client, navigate to the host that has virtual flash configured.
- Click the Manage tab and click Settings.
- Under Virtual Flash, select Virtual Flash Resource Management and click Remove All.
After you remove the virtual flash resource and erase the SSD, the disk is available for other operations.