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

NTP Configuration

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

Table 1. Design Decision on Time Synchronization in vRealize Log Insight

Decision ID

Design Decision

Design Justification

Design Implication

ROBO-OPS-LOG-025

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

Guarantees accurate log timestamps.

All applications must synchronize time to the same NTP time source.

ROBO-OPS-LOG-026

Configure NTP sources that are located in the ROBO site.

  • Co-location of NTP sources to the vRealize Log Insight cluster guarantees time accuracy across the nodes if a WAN outage occurs.

  • Co-location of NTP sources to the vRealize Log Insight cluster ensures time synchronization between all nodes is as accurate as possible.

You must have NTP sources located in your ROBO site.