VMware vSAN is a software-defined storage solution that provides a highly available, resilient, and scalable storage platform. It’s important to regularly monitor and maintain the health of your vSAN cluster to ensure optimal performance and availability. One way to do this is by using vSAN health check commands. In this blog, we will explain basic vSAN health check commands with examples.
1. Run vSAN Health Check
The vSAN Health Check is a built-in feature that helps to identify potential issues with your vSAN cluster. It runs a series of tests to verify that your vSAN configuration is correct and that the system is healthy.
To run the vSAN Health Check, log in to the vSphere Web Client and navigate to the vSAN Health Check tab. From there, you can run the health check and view the results.
2. Check vSAN Disk Health
It’s important to regularly check the health of your vSAN disks to ensure that they’re functioning properly. You can do this by using the esxcli command.
To check the health of a vSAN disk, run the following command:esxcli vsan storage list
This command lists all the disks that are being used for vSAN storage. The output will show the status of each disk, including any errors or warnings.
3. Check vSAN Network Health
The network is a critical component of a vSAN cluster, and it’s important to ensure that it’s functioning properly. You can use the esxcli command to check the health of your vSAN network.
To check the health of the vSAN network, run the following command:esxcli vsan network list
This command lists all the network adapters that are being used for vSAN traffic. The output will show the status of each adapter, including any errors or warnings.
4. Check vSAN Cluster Health
The overall health of your vSAN cluster is important to monitor regularly. You can use the RVC (Ruby vSphere Console) tool to check the health of your vSAN cluster.
To check the health of your vSAN cluster using RVC, run the following command:rvc -M <vCenter Server>/vc/<vSAN Cluster Name> vsan.health.cluster_status
This command will display the overall health status of your vSAN cluster, including any warnings or errors that need to be addressed.
In conclusion, vSAN health check commands are crucial in monitoring the health and performance of your vSAN cluster. By regularly checking the health of your vSAN disks, network, and overall cluster, you can ensure that your system is functioning properly and that potential issues are addressed in a timely manner.
Note: RVC commands are deprecated in newer version of vSphere. But it is Good to know info.