You can download the following PDF which you can use it for a quick start on Solaris:
the PDF file taking about the following outlines:
OBP
Packages
Devices
Networking
User Management
Service Management Facility
Files
Inspecting the system
Tasks
Sun Volume Manager
ZFS
Performance Monitoring
Backup
NFS
Zones
Other
Additional Help
Ref.
http://www.tablespace.net/quicksheet/