Want to check all the alerts on the cluster? Need to resolve them all at once?
On the Nutanix web console, you can view a large number of alerts (up to 1000) AND resolve them by navigating to the alerts page from the drop-down on the home screen. 

But do you want to go the old school way?
The Nutanix CLI is designed to display a max number of 100 alerts. You can modify it to show as many alerts as you like and choose how you want to resolve them.

For details on how to count the total number of alerts and how to resolve them all in just one command, see KB 1402 in the Nutanix Support Portal.