eG Monitoring
 

Measures reported by AppVolStorgeGrpTest

By default, a number of datastores can be grouped together into a storage group. There are two types of storage groups:

  • AppStack storage groups

  • Writable volume storage groups

AppStack storage groups replicate single AppStacks across multiple datastores. Writable volume storage groups distribute writable volumes across datastores.

When using AppStack storage groups, the App Volumes Manager manages the connection to the relevant AppStack, based on location and number of attachments across all the datastores in the group. Writable volume storage groups are used to distribute volumes across datastores for I / O and file distribution. Sometimes, when a user connects to the virtual desktop provisioned through the VMware App Volumes Manager, he/she may experience unexpected delays while the AppStacks and Writable volumes are being attached to the user. This may be due to the lack of storage space in the storage group. To avoid such unexpected delays and to improve the user experience on the VMs/desktops provisioned through the VMware App Volumes Manager, it is essential for the administrators to monitor the space utilization of the storage groups at all times. The AppVolStorgeGrpTest helps administrators in this regard!

For each storage group on the target VMware App Volumes Manager, this test reports the number of datastores and the space utilization. Using this test, administrators can figure out potential space crunch (if any) on the storage groups.

Outputs of the test :One set of results for the events generated for each event type on the target VMware App Volumes Manager being monitored.

Descriptor:Event Type

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
No_of_datastore Indicates the total number of datastores in this storage group. Number  
Total_storage Indicates the amount of space allocated to this storage group. TB Ideally, the value of this measure should be low. If this value grows close to that of the Total storage space measure, then you may consider adding more storage to the storage group, or free up the space in the storage group by deleting unnecessary data.
Used_storage Indicates the amount of space that is already utilized by this storage space. TB

Comparing the value of this measure across storage groups will help you identify the storage group that is utilizing the maximum amount of storage space.

A high value is desired for this measure.
Free_storage Indicates the amount of space that is available for use in this storage space. TB A sharp/consistent decrease in the value of this measure is an indication for the administrators to add more free space to the storage group before the storage group runs out of free space.
Storage_usage Indicates the percentage of space utilized by this storage space. Percent A value close to 100% indicates that the storage group is currently running out of space.