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Measures reported by VmgAppVolumeTest

In some virtual desktop infrastructures, hosting of applications is performed using VMware App Volumes to remove, update, or install applications for users in real time. A VMware App Volume is a real-time application delivery system that enterprises can use to dynamically deliver and manage applications. Applications are bundled in AppStacks and delivered by attaching a standard VMDK file to a virtual desktop. The Appstacks are provisioned to the target VDI server using App Volumes Manager (Web-based interface) that is integrated with Active Directory (AD) and vSphere. The App Volumes Manager centrally manages the applications, Appstacks and App Volumes. The 24x7 availability of the App Volumes Manager is imperative to ensure that users have uninterrupted access to the AppStacks that are attached when a user logs in to the target VDI server. If the App Volumes Manager is inaccessible or an AppStack is not attached on time or not attached properly, then, the user experience in accessing the AppStack may seriously suffer. This in turn can impact the productivity of the users and overall user experience with the VDI server. To avoid such inconveniences, it is important for the administrators to continuously monitor the availability of App Volumes Manager and Appstacks attachment to the VDI server. This can be easily achieved using the VmgAppVolumeTest test.

This test instantly reveals the inaccessibility of the App Volumes Manager which helps administrators to quickly resolve the issue and restore the availability of the App Volumes Manager before the users complain. In the process, this test also reports whether/not all the Appstacks are attached to the VDI server. This way, the test informs administrators of non-attachment of Appstacks (if any). In addition, this test reports the number of Appstacks attached, the applications attached with the Appstacks and the time taken for attaching the Appstacks. By analyzing these measures, administrators can figure out if the Appstacks attachment took longer time than expected, and if it too long, initiate remedial measures to fix the same.

Note:

This test will report the measures only if the applications are provisioned to the target VDI server through VMware App Volumes Manager.

Output of the Test: One set of results for the target virtual server that is being monitored.

Measurement Description Measurement Unit Interpretation
Status Indicates whether the App Volumes Manager is currently accessible or not.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Numeric Value Measure Value
0 No
1 Yes

Note:

By default, this measure reports the above-mentioned Measure Values listed in the table above to indicate the current accessibility status of the App Volumes Manager. The graph of this measure however, is represented using the numeric equivalents only.

The detailed diagnosis of this measure reveals the details of the Apps Volume Manager.
No_of_app_stack Indicates the total number of AppStacks attached to the VDI server. Number Appstack is a read-only volume containing one or more Windows applications. Once provisioned, an individual AppStack or multiple AppStacks can be mapped to a user, a group of users, or computers at login, or in real-time and to computers only at the time of startup.

The detailed diagnosis of this measure displays the details of the Appstacks attached to the App Volumes Manager.
No_of_application Indicates the total number of applications attached in the AppStacks that have been attached to the target VDI server.   The detailed diagnosis of this measure displays the details of the applications bundled in the Appstacks.
Vol_attch_state Indicates whether/not all the appstacks are attached to the the target VDI server.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Numeric Value Measure Value
0 UnAttached
1 Attached

Note:

By default, this measure reports the above-mentioned Measure Values listed in the table above to indicate whether all Appstacks are attached to the App Volumes Manager or not. The graph of this measure however, is represented using the numeric equivalents only.

No_of_writable Indicates whether/not a writable App Volume is attached to the target VDI server.   The values reported by this measure and its numeric equivalents are mentioned in the table below:

Numeric Value Measure Value
0 No
1 Yes

Note:

By default, this measure reports the Measure Values listed in the table above to indicate the availability of the writable App Volume attached to the VDI server. The graph of this measure however, is represented using the numeric equivalents only.

Tot_vol_attch Indicates the total number of App Volumes attached to the target VDI server. Number The detailed diagnosis of this measure reveals the name of the AppStack and application, the version of the application and the name of the application publisher.
Vol_attch_time Indicates the time taken for attaching the App Volumes to the target VDI server. Seconds The detailed diagnosis of this measure reveals the details of the App Volumes attached to target VDI server.