This topic describes the workspaces that report the performance of user DASD groups. This topic also describes the dialog boxes that you use to add, edit, delete, and migrate user DASD volume groups.
A user DASD group is a user-defined logical grouping of DASD volumes. Volumes within a user DASD group are typically related according to specific 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 and Response Time). 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 can now dynamically allocate user DASD volume groups. This new feature of Tivoli OMEGAMON XE for Storage on z/OS Version 4.2.0 Interim Feature 2 replaces the functionality that was previously included in the Configuration Tool. User DASD groups are no longer defined within Configuration Tool. You access the user DASD workspaces through the User DASD Groups Performance 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 Tivoli OMEGAMON XE 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 Accessing workspaces to learn about navigating among workspaces. And see Integration with other products to learn about linking to the workspaces of other IBM Tivoli Monitoring products.
In addition, with Tivoli OMEGAMON XE 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. From the User DASD Groups Performance item in the navigation tree, right-click on the Volume Actions... menu item and select the action you want to perform.
This topic describes the main components of the principal workspace for this node.
The following sections describe various components of this workspace.
Learn how to navigate among workspaces here: Accessing workspaces. Also see Integration with other products.
See Workspaces for a list of all nodes provided in Tivoli OMEGAMON XE for Storage on z/OS.
This section lists the views and related attribute groups for the workspaces of the User DASD Groups Performance node.
See Workspaces for general information on predefined workspaces and a list of all nodes that are included in the Tivoli OMEGAMON XE 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 Accessing workspaces to learn about navigating among workspaces. And see Integration with other products to learn about linking to the workspaces of other IBM Tivoli Monitoring products.
See User DASD Groups Performance workspace for more information on the primary workspace for this node.
User DASD Groups Performance workspace | ||
View | View type | Attribute group |
User DASD Groups Performance Report | TABLE | Volume Group Summary |
High Volume Response Time > 25 | BAR | Volume Group Summary |
User DASD Group Volume Performance workspace | ||
View | View type | Attribute group |
Volume Performance Report | TABLE | DASD Volume Performance |
Volume Response Time > 25 | BAR | DASD Volume Performance |
User DASD Group Volume Cache workspace | ||
View | View type | Attribute group |
Volume Cache Report | TABLE | Cache Devices |
Read Hit Percent < 55 | BAR | Cache Devices |
Write Hit Percent < 30 | BAR | Cache Devices |
User DASD Group Performance Trend workspace | ||
View | View type | Attribute group |
User DASD Groups Performance Trend Report | TABLE | Volume Group Summary |
High Volume Response Time | BAR | Volume Group Summary |