Nagios Core Scalability should be a serious concern for IT professionals responsible for overseeing their unique hosting environments.

Presently, my stand-alone Nagios Core engine monitoring 1000+ nodes but from the scalability point of view, I'm going to perform a distributed monitoring environment in HA (High Availability) mode. Single Nagios Core stands of SPOF (Single Points of Failure) having high RTO & RPO.

Nagios Core, being an open source, contains limited measures you can take to increase the scalability of the product. As it said, a free monitoring tool will simply not be able to handle the volumes of a more flexible, robust system.

That's why keeping Nagios Core due to the $0 price tag may seem like a cost-efficient approach, but eventually, it becomes mandatory to scale it without impacting productivity.

The solution is scalable with no issues. 

I would rate the scalability a ten out of ten. In my environment, only I am using the solution. But we definitely plan to increase the usage. 

The solution is scalable but we are still familiarizing ourselves with tool and have not scaled largely yet.

Nagios is appropriate for companies of all sizes, but a larger enterprise might require a bigger IT team. The largest team I've seen was 50 people. You can easily scale Nagios up, but I've never done it. 

Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers. However, it is scalable in sizing, allowing for easy updates and upgrades without much complication. Just need to adjust settings in the software during the process. I would rate the scalability as a six out of ten.

Nagios Core is scalable for our purposes.

I rate Nagios Core ten out of ten for scalability.

I would rate the scalability at five out of ten.

So far, it has met our needs. As far as I know, from reading blogs and the like, it can go to many more servers and even multiple data centers. It seems like it's pretty scalable.

Nagios Core is scalable for our needs. We don't have many servers and network activity, we have approximately 200 nodes, and it's fulfilling our requirements.

We do not have plans to increase our usage of the solution this time but maybe in the future.

It's highly scalable and will scale according to your needs.

It seems to be all right at the moment. We don't seem to be having any problems with that. We have upwards of 20 users, and it is being used on a daily basis.

No scalability issues, though it is a bit slow due to latency. However, after tweaking the Nagios and off-loading the graphing to NPCD, I was able to scale the Nagios to more than 5000 services checks with 0.5s latency.

The scalability of Nagios Core is very good. We can add as many hosts as we like, and we can work with the concept master and client. It's very scalable and we have added the SentryOne as another layer. It's become very easy to use.

This solution is used by two engineering and three technicians. It is not used for end-user.

We're only currently using Nagios Core on one to ten servers. In the future, we may add more nodes.

We are monitoring under 200 devices and less than 1200 services so I do not need this availability yet.

There have been no issues scaling it.

No.

We haven't had any issues with scalability. If a company needs to expand it, it should be able to.

We have about 100 hosts and about 10 servers at this point and maybe 19 at the point of sale.

It's been able to scale for our needs.

There have been no issues scaling it for our needs.

It does not scale horizontally. We had to wrote our own web interface and puppetry to manage/view all the hosts managed by various, indipendent Nagios hosts.

We have had no scaling issues.

I've not had to scale it.

There's been no issues having it monitor our entire infrastructure.

My old instance still runs on a Esxi VM with zero support on the hypervisor or the Nagios system its just a 2GB vRAM and single vCPU with about 40 GB storage and handles about 70 odd hosts and runs just fine apart from the log files maintenance its easy

This solution is not scalable at all. If you want to add an AI, or if you wanted to monitor different types of metrics, you won't get the most out of it.

It's not scalable, which is important these days when you want to see more data and how your network is performing.

It's been able to scale for our needs.

I currently do not need to scale on my network.