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VMware vSphere Troubleshooting by Muhammad Zeeshan Munir

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Failing heartbeat datastores

What do humans usually do if they find an irregular or missing heartbeat? They consult with the doctor to cure it. When a vSphere cluster misses a heartbeat, you are required to troubleshoot it before it leads to the disaster of a failing cluster.

A vSphere host's HA management traffic is usually separated from other networks by using a dedicated management network. In a vSphere cluster, the master vSphere host uses the management network to interconnect with a slave vSphere host. The datastore heartbeat is used when a slave vSphere host fails to respond to the calls of its master host. The master host tries to establish communication using a datastore network partition and tries to find the slave host's heart beating ...

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