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Measures reported by VsanHealthTest

In a Virtual SAN enabled cluster, you can use the vSAN health checks to monitor the status of cluster components, diagnose issues, and troubleshoot problems. The health checks cover hardware compatibility, network configuration and operation, advanced vSAN configuration options, storage device health, and virtual machine objects. The vSAN health checks are divided into categories. Each category contains individual health checks.

Health Check Category	Description
Hardware Compatibility	Monitor the cluster components to ensure that they are using supported hardware, software, and drivers.
Performance Service	Monitor the health of vSAN performance service.
Physical disk	Monitor the health of physical devices in the vSAN cluster.
Data	Monitor vSAN data health.
Cluster	Monitor vSAN cluster health.
Capacity utilization	Monitor vSAN cluster capacity.
Online health	Monitor vSAN cluster health and send to VMware’s analytics backend system for advanced analysis. You must participate in the Customer Experience Improvement Program to use online health checks.
vSAN Build Recommendation	Monitor vSAN build recommendations for vSphere Update Manager.
vSAN iSCSI target service	Monitor the iSCSI target service, including the network configuration and runtime status.
Encryption	Monitor vSAN encryption health.
Stretched cluster	Monitor the health of a stretched cluster, if applicable.
Hyperconverged cluster configuration compliance	Monitor the status of hosts and settings configured through the Quickstart workflow.

The health checks in the above-table are periodically executed on the vSAN cluster for health testing and performance guarantee. By continuously tracking the health checks on the cluster, administrators can find out current health of the cluster and quickly identify the alerts on unhealthy conditions in time. This way, administrators are enabled to act on the health check alerts that indicate failure conditions or hardware incompatibility with the highest priority. To help administrators in this regard, eG Enterprise offers the VsanHealthTest test.

This test monitors the tests under all the health check categories on the vSAN cluster and reports the count of tests in each health check category at different states. The revelation helps administrators to proactively identify the failures and warnings during health checks and reduces the pain involved in troubleshooting the failure conditions.

Note:

This test is applicable only for the vSAN enabled clusters in the VMware vCenter server.

Outputs of the test : One set of results for VMware vCenter server that is being monitored.

The measures made by this test are as follows:

Measurement	Description	Measurement Unit	Interpretation
Passed	Indicates the number of tests under this health check category that returned the Passed state.	Number	The detailed diagnosis of this measure, if enabled using DDForPassedandInfo flag, reveals the name of the tests under each health check category that returned the Passed state, detailed message and health status of the tests.
Skipped	Indicates the number of tests under this health check category that returned the Skipped state.	Number	The detailed diagnosis of this measure lists the name of the tests under each health check category that returned the Skipped state, detailed message and health status of the tests.
Info	Indicates the number of tests under this health check category that returned the Info state .	Number	The detailed diagnosis of this measure, if enabled using DDForPassedandInfo flag, reveals the name of the tests under each health check category that returned the Info state, detailed message and health status of the tests.
Warning	Indicates the number of tests under this health check category that returned the Warning state.	Number	The detailed diagnosis of this measure lists the name of the tests under each health check category that returned the Warning state, detailed message and health status of the tests.
Failed	Indicates the number of tests under this health check category that returned the Failed state.	Number	The detailed diagnosis of this measure lists the name of the tests under each health check category that returned the Failed state, detailed message and health status of the tests.
Unknown	Indicates the number of tests under this health check category that returned the Unknown state.	Number	The detailed diagnosis of this measure lists the name of the tests under each health check category that returned the Unknown state, detailed message and health status of the tests.