We are also working with syslog-ng.

vRealize Log Insight is a component that is designed for a VMware environment.

Because you have a VMware environment, you must maintain those things. 

syslog-ng is for everyone, regardless of which vendor you use. 

You can use vRealize Log Insight if you have a VMware environment, and if you don't have that, you can use syslog-ng.

It's different components and different integrations.

vRealize Log Insight has very limited integration and is primarily designed for VMware environments. While syslog-ng can be integrated and used in any environment. No matter how many vendors you use, you may be in a multi-vendor environment, but VMware is a single vendor.

The Prism console and Aria Operations are both competent enough. However, I prefer Prism. The Acropolis hypervisor is preinstalled in Prism. We just have to integrate the Prism console. All the performance analytics will appear on the central pane of the Prism console. Nutanix Prism is more user-friendly compared to VMware Aria Operations.

Prism is a great tool to have a central visibility for everything. We don't need to log in to another console to visualize something. For example, if we want to do heartbeat monitoring of a virtual machine, everything appears on a central dashboard. We don't need to go to VM to see the performance.

We didn't previously use a different solution.

We used to have HP OpenView monitoring. Then we moved to Centreon monitoring. Then we moved to Splunk. Then later we changed again to using Log Insight. 

The reason for changing finally to vRealize was it based on the fact that we got a vRealize site license site. Log Insight is a part of the vRealize Suite. With this product, we did not need to buy an additional license for log monitoring. 

We're also using Elastic's X-Pack. There aren't too many differences between the solutions. To me, they are almost the same in terms of offering and functionality. The biggest difference is that Log Insight has some items built-in and Elestci requires you to do a few things yourself.

We did not previously use a different solution.