How many impact policy levels are available when configuring Isilon jobs?

Where does Endurant Cache stage its write cache?

Which feature of OneFS is used in the Home Directory and File Share vertical to monitor storage and media clients for optimal performance?

A customer plans to deploy N+2:1 protection on a 5-node Isilon cluster. How much capacity will be used to store a 1024 KiB file?

A customer is able to see some performance metrics in the Isilon OneFS dashboard or by using
CLI. Other performance metrics will require InsightIQ.
What will require a licensed version of InsightIQ?