When testing Storage Service in Strategy 2021, the test connection attempt can fail with "The storage location could not be connected" error message.

Alternatively, "Failed to create package" error message can be thrown when attempting to create a new migration package.

This can occur due to the storage location not being available to the Unix user running Tomcat. It is possible the directory itself does not exist or the user does not permissions to the directory.
Strategy Library Log Sample:
{...RestError [code=ERR021, iServerErrorCode=0, message=The shared folder location can not be found, or the location is not a directory., httpStatusCode=400, ticketId=ef9e4e27f5d145618d8c6c1814b96a7f]"...}Coordinate with system admin of machine running Tomcat to ensure the directory exists and the user running Tomcat has the proper privileges.