Time Deviation
In the very unlikely event that there is a time deviation greater than five minutes between the client and the server, the authentication of the client fails for security reasons. In this case an error message is displayed and working with ZEN Data Storage is not possible. You have to fix the system time of the client and/or server before a retry.
In ZEN core, you can store your data on your computer's file system in your local archive, or you have the option to save your data in a database called ZEN Data Storage.
ZEN Data Storage is an additional product which has to be installed. For more information, refer to the installation guide of ZEN Data Storage. You also need configure ZEN Data Storage as your archive, see Configuring a ZEN Data Storage Archive.