Time synchronization is critical for the core functionality of vRealize Log Insight. By default, vRealize Log Insight synchronizes time with a pre-defined list of public NTP servers.

Configure consistent NTP sources on all systems that send log data (vCenter Server, ESXi, vRealize Operations Manager, and so on). See Time Synchronization in the VMware Validated Design Planning and Preparation documentation.

Table 1. Design Decision about Time Synchronization for vRealize Log Insight

Decision ID

Design Decision

Design Justification

Design Implication


Configure consistent NTP sources on all virtual infrastructure and cloud management applications for correct log analysis in vRealize Log Insight.

Guarantees accurate log timestamps.

Requires that all applications synchronize time to the same NTP time source.