Sparse-root Zone Support

A sparse-root zone configuration supports multiple Policy Server instances running on multiple sparse-root zones. Specifically:

Only one Policy Server instance is supported on each sparse-root zone.
Concurrent Policy Server instances are supported on sparse-root zones and whole-root zones, so long as there is only one Policy Server instance on each sparse-root or whole-root zone.
Policy Server instances are not supported running concurrently on the global zone and on sparse-root zones.

Example: Sparse-root zone support

Sparse-root and whole-root example

Note: Web Agents, however, may run concurrently in any zone.