You can use ESXi Dump Collector to configure and dump a host's kernel core to a network server on the datacenter when the system fails. ESXi Dump Collector is installed and enabled by default on the VMware vCenter Server Appliance.
ESXi Dump Collector does not support vSphere distributed switches in ESXi 5.0.
Install the VMware vCenter Server Appliance and configure the database. See Configure Database Settings for the VMware vCenter Server Appliance and the vSphere Installation and Setup documentation.
- Log in to the VMware vCenter Server Appliance.
- On the vCenter Server tab, click Services.
- Type the size in the ESXi Dump Collector repository max size text box to specify the maximum core dump repository size in GB.
- Click Test Settings to verify that your changes are valid.
- Click Save Settings.
- Restart ESXi services.
What to do next
Configure hosts to dump kernel memory to the network server. See the vSphere Installation and Setup documentation.