# Monitoring SMS storage groups performance

This topic describes the workspaces that monitor the status of SMS storage groups performance. You access these workspaces through the SMS Storage 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.

## Navigating the workspaces of the SMS Storage Groups Performance node

This section summarizes the workspace links that are available through the Navigator node. Depending on your monitoring goal, you follow a specific series of links to get detailed information about storage resources.

You start in the SMS Storage Groups Performance node to navigate to the workspaces that you see in Table 1. You can access the workspaces in this table using the standard path and method for navigating workspaces.

Table 1. SMS Storage Groups Performance node: bulleted list showing the hierarchy of linked workspaces
SMS Storage Groups Performance SMS Storage Group Volume Performance Dataset Performance Summary 1 Volume Performance Trend Dataset Historic Performance Summary Dataset Performance Historical Detail Physical Volume Group Performance Dataset Performance Summary 1 Volume Performance Trend Dataset Historic Performance Summary Dataset Performance Historical Detail Device Performance Details Cross System Volume Performance Dataset Performance Summary 1 SMS Storage Group Volume Cache Dataset Performance Summary 1 Physical Volume Group Cache Dataset Performance Summary 1 Device Performance Details Cross System Volume Performance Dataset Performance Summary 1 Volume Cache Trend Cross System Group Summary Cross System Volume Performance Dataset Performance Summary 1 Storage Group Performance Trend SMS Storage Group Historical Volume Performance Dataset Historic Performance Summary Dataset Performance Historical Detail SMS Storage Group Historic Volume Cache Performance Dataset Historic Performance Summary Dataset Performance Historical Detail These workspaces list the volumes with the least favorable readings for the attribute within the SMS storage group selected for navigation: Highest Volume Response Time (Top 10) 2 Highest Volume MPL (Top 10) 2 Highest Volume I/O Rate (Top 10) 2 Highest Volume Busy Percent (Top 10) 2 Lowest Volume Connect Percent (Top 10) 2 Highest Volume Group Response Time (Top 10) 2 Highest Volume Group MPL (Top 10) 2 Highest Volume Group I/O Rate (Top 10) 2 Highest Volume Group Busy Percent (Top 10) 2 Lowest Volume Group Connect Percent (Top 10) 2

Footnotes for Table 1:

1. This group of workspaces is organized in the following nested pattern:
   - Dataset Performance Summary
     - Dataset Performance Detail
       - Dataset Details
       - Dataset Performance Detail Trend
     - Dataset Details
     - Dataset Performance Summary Trend
       - Dataset Performance Historical Detail
2. This workspace links to the following set of related workspaces:
   - Dataset Performance Summary (See the preceding note (1) for details.)
   - Physical Volume Group Performance
     - Dataset Performance Summary 1
   - Device Performance Details
   - Cross System Volume Performance
     - Dataset Performance Summary 1
   - Volume Performance Trend
     - Dataset Historic Performance Summary
       - Dataset Performance Historical Detail

Access the following linked workspaces by selecting the SMS Storage Groups Performance node in the Navigator. Right-click the node. Select the workspace that you want to access in the pop-up menu.
  These workspaces list the volumes with the least favorable readings for the attribute across the z/OS image.
  - Highest Volume Response Time *
  - Highest Volume MPL *
  - Highest Volume I/O Rate *
  - Highest Volume Busy Percent *
  - Lowest Volume Connect Percent *
  Each of the workspaces in the preceding bulleted list link to the following set of related workspaces:
  - Dataset Performance Summary
    - Dataset Performance Detail
      - Dataset Details
      - Dataset Performance Detail Trend
    - Dataset Details
    - Dataset Performance Summary Trend
      - Dataset Performance Historical Detail
  - Physical Volume Group Performance
    - Dataset Performance Summary 1
  - Device Performance Details
  - Cross System Volume Performance
    - Dataset Performance Summary 1
  - Volume Performance Trend
    - Dataset Historic Performance Summary
      - Dataset Performance Historical Detail

## SMS Storage Groups Performance workspace

This topic describes the main components of the principal workspace for this node.

The direct situation analysis feature is available for this workspace. The feature can help you analyze and understand a problem that is displayed in this workspace. See Directly monitoring situations.

Views
  This workspace provides the following views. For a description of the attributes used as column headings in the workspace table view, review the attribute group definitions for this workspace in the online help. The help resource includes attribute descriptions that are displayed when you hover with the mouse pointer over a column heading.
  SMS storage groups performance table view
    The table view contains one row of data for each SMS storage group defined in the reporting LPAR. The view contains the following information:
    - The name of the group
    - The type
    - The SMS status
    - The number of volumes in the group
    - The current highest response time for any volume in the group
    - The current high busy percent for any volume in the group
    - The device multi-processing level
    - The low read and write hit percents among all volumes in the group
    - The highest DFW retry percentage in the group
  High volume response time > 25 bar graph
    This graph contains one bar for each SMS storage group with a highest volume response time that exceeds 25 milliseconds. The height of the bar indicates the actual response time for that volume.
Workspaces that are linked to this workspace
  See Navigating the workspaces of the SMS Storage Groups Performance node.

  Learn how to navigate to 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.

## Summary information for the workspaces in this node

This section lists the views and related attribute groups for the workspaces of the SMS Storage 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 SMS Storage Groups Performance workspace for more information on the primary workspace for this node.

SMS Storage Groups Performance workspace
View | View type | Attribute group
High Volume Response Time > 25 | BAR | Volume Group Summary
SMS Storage Group Performance Report | TABLE | Volume Group Summary

SMS Storage Group Volume Performance workspace
View | View type | Attribute group
Volume Response Time > 25 | BAR | DASD Volume Performance
Volume Performance Report | TABLE | DASD Volume Performance

Dataset Performance Summary workspace
View | View type | Attribute group
Dataset Performance Summary Report | TABLE | Dataset Performance
Datasets with MSR > Storage Class Objective | TABLE | Dataset Performance

Dataset Performance Detail workspace
View | View type | Attribute group
Dataset Performance Detail Report | TABLE | Dataset Performance
Component Percent of Dataset MSR for All Jobs | PIE | Dataset Performance

SMS Storage Group Volume Cache workspace
View | View type | Attribute group
Read Hit Percent < 55 | BAR | Cache Devices
Write Hit Percent < 30 | BAR | Cache Devices
Volume Cache Report | TABLE | Cache Devices

Volume Performance Trend workspace
View | View type | Attribute group
Volume Performance Trend Report | TABLE | DASD Volume Performance
Response Time Analysis | PLOT | DASD Volume Performance

Physical Volume Group Performance workspace
View | View type | Attribute group
Volume Response Time > 25 | BAR | DASD Physical Group
Physical Volume Group Performance Report | TABLE | DASD Physical Group

Physical Volume Group Cache workspace
View | View type | Attribute group
Read Hit Percent < 55 | BAR | DASD Physical Group
Write Hit Percent < 30 | BAR | DASD Physical Group
Physical Volume Group Cache Report | TABLE | DASD Physical Group

Dataset Details workspace
View | View type | Attribute group
Dataset Space Attributes | TABLE | Dataset Space
Dataset Users | TABLE | Dataset Users
Dataset SMS Constructs | TABLE | Dataset SMS
Dataset Performance Summary | TABLE | Dataset Performance

Device Performance Details workspace
View | View type | Attribute group
Volume Cache Performance Details Report | TABLE | Cache Devices
Volume Status | TABLE | Volume Status
Volume Details | TABLE | DASD Volume Performance
Volume Performance Details Report | TABLE | DASD Volume Performance
Volume Users | TABLE | Volume Users

Device Performance Details workspace
View | View type | Attribute group
Volume Cache Performance Details Report | TABLE | Cache Devices
Volume Status | TABLE | Volume Status
Volume Details | TABLE | DASD Volume Performance
Volume Performance Details Report | TABLE | DASD Volume Performance
Volume Users | TABLE | Volume Users

Cross System Group Summary workspace
View | View type | Attribute group
Device Contention Index | BAR | Cross System Vol Summary
Cross System Performance Report | TABLE | Cross System Vol Summary

Cross System Volume Performance workspace
View | View type | Attribute group
Response Time | BAR | Cross System Volumes
Percent Busy | BAR | Cross System Volumes
Cross System Volume Performance Report | TABLE | Cross System Volumes

SMS Storage Group Performance Trend workspace
View | View type | Attribute group
High Volume Response | BAR | Volume Group Summary
SMS Storage Group Performance Trend Report | TABLE | Volume Group Summary

Group Volume Historical Performance workspace
View | View type | Attribute group
Volume Performance Report | TABLE | DASD Volume Performance
Volumes with Response Time > 25 | BAR | DASD Volume Performance

Dataset Performance Summary Trend workspace
View | View type | Attribute group
Dataset Performance Summary Trend | TABLE | Dataset Performance
Response Time Analysis | PLOT | Dataset Performance

Dataset Historic Performance Summary workspace
View | View type | Attribute group
Dataset Performance Summary History Report | TABLE | Dataset Performance
Datasets with MSR > Storage Class Objective History | TABLE | Dataset Performance

Dataset Performance Historical Detail workspace
View | View type | Attribute group
Dataset Performance Detail Report | TABLE | Dataset Performance
Component Percent of Dataset MSR for All Jobs | PIE | Dataset Performance

Dataset Performance Detail Trend workspace
View | View type | Attribute group
Dataset Performance Application Trend | TABLE | Dataset Performance
Response Time Analysis | PLOT | Dataset Performance

Dataset Performance Event workspace
View | View type | Attribute group
Dataset Performance Summary Report | TABLE | Dataset Performance
Dataset Response Time | BAR | Dataset Performance

Highest Volume Response Time workspace
View | View type | Attribute group
Highest Volume Response Time Report | TABLE | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume MPL workspace
View | View type | Attribute group
Highest Volume MPL Report | TABLE | DASD Volume Performance
Volume MPL | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume I/O Rate workspace
View | View type | Attribute group
Highest Volume I/O Report | TABLE | DASD Volume Performance
Provide summary performance information for the datasets on a specified volume. | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume Busy Percent workspace
View | View type | Attribute group
Highest Volume Busy Percent Report | TABLE | DASD Volume Performance
Volume Busy Percent | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Lowest Volume Connect Percent workspace
View | View type | Attribute group
Lowest Volume Connect Time Percent Report | TABLE | DASD Volume Performance
Volume Connect Time Percent | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume Group Response Time workspace
View | View type | Attribute group
Highest Volume Performance Report | TABLE | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume Group I/O Rate workspace
View | View type | Attribute group
Highest Volume I/O Report | TABLE | DASD Volume Performance
Volume I/O Rate | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume Group MPL workspace
View | View type | Attribute group
Highest Volume MPL Report | TABLE | DASD Volume Performance
Volume MPL | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Highest Volume Group Busy Percent workspace
View | View type | Attribute group
Highest Volume Busy Percent Report | TABLE | DASD Volume Performance
Volume Busy Percent | BAR | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance

Lowest Volume Group Connect Percent workspace
View | View type | Attribute group
Volume Connect Time Percent | BAR | DASD Volume Performance
Lowest Volume Connect Time Percent Report | TABLE | DASD Volume Performance
Volume Response Time | BAR | DASD Volume Performance