Run Levels in Solaris OS

Different Runlevel in Solaris OS:

There are 8 runlevels in solaris. Following are the runlevel and their function.

Runlevel    Function

0             System is running the PROM monitor.

s             Solaris OS single-user mode with critical file systems
mounted and accessible.

1             The system is running in a single-user administrative state
with access to all available file systems.

2   Multi user.The system is supporting multiuser operations.
Multiple users can access the system. All system daemons
are running except for the Network File System (NFS) server
and some other network resource server related daemons.

3              The system is supporting multiuser resources and sharing NFS resources and other network resources available
4              This level is currently not implemented.

5             A transitional run level in which the Solaris OS is shut down
and the system is powered off.

6             A transitional run level in which the Solaris OS is shutdown and is reboot to default run level