A Solaris patch is a collection of files and directories that replaces or updates existing files and directories that are preventing proper execution of the Solaris OS or other software. The Solaris Plug-In enables you to use the N1 Grid Service Provisioning System to install a Solaris patch on multiple servers. For more information about Solaris patches and how to acquire them, see Chapter 18, Managing Solaris Patches (Overview), in System Administration Guide: Basic Administration.