Starting with vSphere 6.0, vCenter Server monitors all certificates in the VMware Endpoint Certificate Store (VECS) and issues an alarm when a certificate is 30 days or less from its expiration. You can change how soon you are warned with the vpxd.cert.threshold advanced option.

1

Log in to the vSphere Web Client.

2

Select the vCenter Server object, the select the Manage tab and the Settings subtab.

3

Click Advanced Settings, select Edit, and filter for threshold.

4

Change the setting of vpxd.cert.threshold to the desired value and click OK.