This topic describes the workspaces that report the status of user DASD groups space. This topic also describes the dialog boxes that you use to add, edit, and delete a user DASD volume group.
A user DASD group is a user-defined logical grouping of DASD volumes. Volumes within a user DASD group are typically related according to some criteria. You can define a user DASD group based on volume name, device address, SMS storage group, or one or more DASD volume attributes (for example, Fragmentation Index, Response Time, and other attributes). After you define a user DASD group, you can use the User DASD Group Performance and User DASD Group Space workspaces to view aggregated performance and space metrics for the group as a whole. From these two workspaces, you can drill down to other workspaces that display performance and space metrics for each volume in the group.
You dynamically allocate user DASD volume groups. You access these workspaces through the User DASD Groups Space node in the Tivoli® Enterprise Portal.
See Workspaces for general information on predefined workspaces and a list of all nodes that are included in the OMEGAMON for Storage on z/OS product. Each node corresponds to a specific area of storage resource monitoring. And each node includes links to a unique set of storage resource workspaces. See Workspaces to learn about navigating among workspaces. Also see Workspaces to learn about linking to the workspaces of other IBM Tivoli Monitoring products.
In addition, with OMEGAMON for Storage on z/OS Version 4.2.0 Interim Feature 3 or later, you can issue volume-level Storage Toolkit commands from the User DASD Group report level. To access these commands, open the User DASD Groups Space workspace from the Navigator, right-click a row on the table view and select the Volume Actions... menu item, then select the action you want to perform.