Sun Update Connection - Enterprise 1.0 Administration Guide

Using Master Groups and Custom Groups

A group is a set of managed hosts to which you can send jobs simultaneously. There are two types of groups:

Master Group. Contains the master host and all its sharing hosts. A job cannot be sent to only one of the hosts in a Master Group; the entire group must receive any job.
Custom Group. Contains any set of master hosts that you choose. If the hosts do not have sharing hosts, the group can run and successfully deploy jobs. If any one of the hosts in a Custom Group has sharing hosts, jobs cannot be deployed on this group.

When you create privileged users with Permitted Groups, the groups must be complete Master Groups. You cannot assign a Custom Group as a permitted group, even it contains only hosts without sharing hosts.

The Hosts window displays icons to indicate the type of the groups and the type of managed host.

Table 5–1 Hosts Window and Groups Tab Icons


Icon	Name	Description
	Default Group	All Hosts group, or distribution groups.
	Custom Group	User-defined logical group of managed hosts. Use Custom Groups to organize the system for easy management. Custom Groups can contain the following: A host list of any master hosts you choose Nested Custom Groups
	Master Group	Automatically created group of master host and the sharing hosts that have read-only access to the master’s resources. To maintain synchronization, use the Master Group. The Master Group must meet the following requirements: Contain only the master and sharing hosts Cannot contain nested Custom Groups
	Master Host	An individual Linux operating system with full access to all its directories, with an installed agent, and maintaining an operational connection to the dependency manager.
	Unsynchronized Master Host	Master host has at least one sharing host that is not synchronized Click Synchronize to fix this problem.
	Disconnected Master Host	Master host that has lost its connection to the DM.
	sharing host	A minidisk with read-only access to the directories of a master host that is configured to share its resources with this minidisk.
	Disconnected Sharing Host	A managed host that is not currently connected to the dependency manager.

Note –

Sun Update Connection – Enterprise creates a Master Group only after a master host has at least one sharing host. Every Master Group contains at least two managed hosts: the master host and the sharing host.

The Hosts window also shows a new button: Synchronize. Use this feature to create a job that runs only on sharing host, to synchronize it with its master host. This button is available only while Sun Update Connection – Enterprise is in Sharing Mode; it is enabled if you select a sharing host that is not synchronized with its master.

In the Hosts window, when you have selected either a sharing host or a Master Group, the New and Properties buttons are disabled.