Heard back from Synology and they indicated I should click the “Repair” option to fix the System Partition Failed error message seen previously.
I did that and our data is now accessible again. However, all the user account info, scheduled tasks (e.g. Glacier backups, notebook backup script), IP configurations, mail configurations, etc. have all been reset.
I downloaded/installed the various packages needed to have the server accessible via the web and configured the IP address settings.
Have a note out to Synology to see if the configurations can be restored somehow. Once I hear back, we’ll get user accounts re-established.
Below is a chronological set of screen caps of the repair process: