Raghav's instructions weren't clear to me, but they did point me in the direction needed.
In SASD, click on the Alert button to open the Duplicate Alert Centric WorkSpace.
Once there I modified the Dynamic Filter to only show Alert Severity Critical items and then right clicked on each of them and acknowledged, then closed the alert. Using shift to select multiple events did not work for me.
I would have never thought to look at the SASD console for the ability to clear these health notifications. I have always looked at the VSOM admin interface to do this. Not exactly intuitive for someone who has had this product since the 6.x days. We only give the SASD to security guard stations to monitor the cameras in their area. I have never thought of it as an administrative tool.
