Application details

View detailed information and charts about the capacity and space usage of applications and application subcomponents. You can also view and access charts and information about the performance of the applications and the application subcomponents.

The Overview page also contains a list of all the top level applications. Click the application name from the list to go directly to the details for that application. The application list enables you to quickly navigate from application to application and add resources and subcomponents.

View the following charts to see the capacity trends, the space usage, and the performance of the storage resources that are assigned to the application:

Capacity

Historical charts that show capacity information for resources that currently belong to the application:
Block Capacity
The block capacity chart shows the capacity of volumes from block storage systems that currently belong to the application. It includes data that was collected over the previous 30 days.
Object Capacity
The object capacity chart shows the amount of storage space that used by all the vaults that currently belong to the application. It includes data that was collected over the previous 30 days.

Capacity by Tier

Use the capacity by tier chart to view the used and available space by tier.

For each tier of storage, the following information is shown:
Available Capacity
The unallocated capacity remaining in the pools.
Used Capacity
(Previously known as Allocated Space) The capacity that is allocated to the volumes that belong to the application.

Most Active Volumes

A historical performance chart that shows the top volumes that are related to the application:
Response Time
A historical performance chart that shows the response rate of the volumes with the largest overall response time. The response rate represents the average number of milliseconds that was required to service each I/O operation (read and write) for a volume.
I/O Rate
A historical performance chart that shows the total I/O rates of the most active volumes. The I/O rate represents the average number of I/O operations per second for nonsequential read and write operations on the volume.
Data Rate
A historical performance chart that shows the data rate of the most active volumes. The data rate represents the average number of mebibytes per second that were transferred for read and write operations on a volume.
Read Cache Hits
A historical performance chart that shows the volumes with the smallest read cache hit percentage when the I/O rate is greater than 0. The read cache hit percentage represents the percentage of cache hits for sequential and nonsequential read operations on a volume. Each volume is represented by a line on the chart.
Volume Utilization
A historical performance chart that shows the approximate utilization percentage of a volume over a specified time interval (the average percent of time that the volume was busy).

Aggregated Workload

A historical performance chart that shows the aggregated I/O or data rates from the perspective of the application, specifically, the throughput of the primary volumes that are members of the application. The data is aggregated in real time for the member volumes that are part of the application at the time the chart is run. The criteria for including or excluding volumes for aggregation is as follows:
  • Member volumes are included.
    • The target copy of member volumes in a remote copy relationship is excluded.
    • VDisk mirrors are excluded.
  • Related resources volumes are excluded.
  • Volumes that are part of multiple subcomponents are counted only once.
The volume data is aggregated to the largest interval of the participating volumes. For example, if Volume A is set to record at 5-minute intervals and Volume B is set to record at 15-minute intervals, the chart displays the data at 15-minute intervals. The data from Volume A is recalculated to match the 15-minute interval requirement.
The metrics available in the chart are as follows:
I/O Rate
A historical performance chart that shows the aggregated I/O Read Rate and the I/O Write Rate for the application represented by two lines on the chart.
Data Rate
A historical performance chart that shows the aggregated Read Data Rate and the Write Data Rate for the application represented by two lines on the chart.
Note: This feature isn't available to all IBM Storage Insights users. Look for news from IBM® about when this feature will be available to you.

Alerts and Alert Definitions

You can define application alerts for the following resource types:
  • Hosts
  • Volumes
  • Filesets
  • Shares

View the alerts that were generated when certain conditions were detected in an application on the Alerts page. Alerts are generated when the conditions that are specified on the Alert Definitions page are detected. To edit the alert definitions, click Alerts Definitions in the General section.

Learn more about alerts

Members

View the resource types that were added to the application or subcomponent. The number next to the resource type, for example, Hosts (2), shows the number of resources of that type in the application. To view information about the resources, click the resource type, for example, Volumes (10).
Important:

When you add a resource to an application, only that resource is added as a member. The resource is displayed in Members and Properties. The related resources of a member resource are not included as members or shown in Properties of the application, but are displayed in Related Resources. To add related resources as members to the application, you must manually add them or set up a specific filter.

For example, when you add a host to an application, you can see only that host as a member and in Properties of that application. The related volumes of that host are not added as members or shown in Properties of the application. Instead, they will be listed in Related Resources.