Restore Caveats
Restoring data from previous snapshot on same instance:
  If JIRA data (Testcase, version, project, component etc) changed since the snapshot is taken, this is likely to create orphaned references
Restoring data from previous snapshot from a another JIRA Server instance:
  This data can’t be restored.
Restoring data from a another JIRA OnDemand instance:
  This functionality is not supported.
Restoring data from previous snapshot with imported project:
  Because imported JIRA data has different identifiers, restore process will result in bad or orphan references.
Starting Release 8.2, Zephyr Enterprise documentation is moving from its current location on Atlassian to a dedicated, standalone Zephyr Enterprise Documentation page. https://support.smartbear.com/zephyr-enterprise/docs/en/welcome-to-zephyr-enterprise.html