What is most valuable?
It's ability to monitor a good range of services out of the box and it's extensibility with the use of plug-ins, with an active user community sharing community contributed plug-ins to cover monitoring for a very wide range of services and components.
How has it helped my organization?
It's helped us to improve our incident management, problem management, and capacity management.
What needs improvement?
The web interface is perfectly fit for purpose but isn't up there with the best modern admin panels. There is scope for improvement to make it more dynamic and responsive.
For how long have I used the solution?
I've been using it for three years.
What was my experience with deployment of the solution?
Nagios XI ships as a virtual appliance and is easily deployed.
What do I think about the stability of the solution?
There have been no performance issues.
What do I think about the scalability of the solution?
Clear instructions are provided on how to expand the disk capacity of the appliance and the solution can be scaled to allow several distributed Nagios monitoring instances to work together.
How are customer service and technical support?
Customer service is excellent. Technical Support
I haven't needed any technical support.
Which solution did I use previously and why did I switch?
We previously used the free version of Nagios and decided that the commercially packaged version Nagios XI was well worth the cost and reduced the admin overhead significantly.
How was the initial setup?
Initial setup is straightforward and allows monitored hosts to be added one-by-one using a wizard or added in bulk using the bulk add tool.
What about the implementation team?
An in-house implementation was done. I would advise that you need to understand the overall basic architecture of Nagios before implementing it.
What's my experience with pricing, setup cost, and licensing?
In my view this product is very good value for money when compared with other commercially provided monitoring solutions.
What other advice do I have?
Implementation is best done by people with a good general Linux/open source skill set. If you have these kinds of people then implementing Nagios should be fairly straightforward. If you have a bunch of Window admins who've never touched a Linux system, then implementation could be a challenge.
Which version of this solution are you currently using?