User's Guide Understanding STA Data Drive Analysis Identify Drives that Had a Health State Change Identify Drives that Had a Health State Change Get a snapshot of drives whose health state have changed. In the left navigation, expand Tape System Hardware, select Drives and then Messages. In the Device Serial Number column, click the Sort Ascending or Sort Descending arrow. Errors and statuses are grouped by drive. Visually scan the list for changes in the device state of individual drives.