Microsoft System Center Operations Manager (SCOM) vs. OpenNMS Meridian

More appropriate for:

• Pure Microsoft ecosystem environments (Windows Server and SQL server) and the most common Linux and UNIX platforms.
• Environments where cost is less of a factor than settling on a single platform for monitoring
• Environments where the administrators are familiar with the setup and installation of SCOM.

Less appropriate for:

• Pure UNIX/Linux shops, especially versions not supported out of the box by SCOM.
• Shops that cannot afford the engagement to setup/configure and maintain on a continuous basis.
• Shops that cannot dedicate personnel to the care and feeding of SCOM, especially when supporting larger environments.

Incentivized

I would recommend all system administrators use some form of network monitoring if they are not already doing so, and I'd definitely recommend people consider OpenNMS if they're shopping around. Small businesses will benefit from the low-cost of entry (it's free!), whilst getting all the enterprise features. Larger businesses can benefit from paid support plans.

However, there's no getting around the fact that you will require some advanced networking and sysadmin knowledge to get the most out of OpenNMS, or at least, be prepared for a steep learning curve. If you don't have the resources to devote this time initially, you may struggle.

Incentivized

• Allows us to visualize our systems in a single interface and see the status of health as well as relevant performance metrics.
• A flexible and powerful interface with active alerting covering domain controllers, SQL servers, etc...
• Allows you to customize your views and workspaces for specific tasks and needs.
• Reporting is powerful and flexible.

Incentivized

• Report on SLA
• Group network areas
• Discovery of elements

Incentivized

• One of the biggest drawbacks to SCOM is the sheer scope and complexity of the system. This can be a pro and a con. The system is very customizable, what you put into it is what you'll get out of it. That said, the learning curve is fairly steep. An organization needs to be committed to putting time and resources into SCOM to get the most out of it. I've heard stories from colleagues of several different companies that invested in SCOM and then abandoned it due to the excessive time and care required.
• SCOM is expensive. Not only is the enterprise licensing costly, SCOM requires it's own servers, operational and warehouse databases to be maintained.
• The OOB SCOM reports are a bit clunky and feel outdated.

Incentivized

• We've had a few issues with delayed alerting.
• I haven't quite figured out how to make topologies work yet, but I haven't spent a ton of time on it either.
• We've also had a bit of trouble importing some MIBs, but that usually boiled down to working with the vendor to make sure we had the right MIBs and dependencies.

Incentivized

Hard to get support. The product is not being actively developed anymore, so it is hard to get new features for the product.

Incentivized

We used Altiris and WSUS and in the beginning Altiris had the better admin interface than SCOM, but it is no longer the case as SCOM has refined their admin interface. Altiris still has better and more robust group assignments for management roles and those two other tools can better manage non Windows OS devices than SCOM but for a large enterprise Windows shop, if you can afford it, SCOM is the way to go.

Incentivized

OpenNMS's more attractive GUI and its price break were the main reasons our company chose to explore and use this product. However, it never managed to actually replace Nagios which had a much more established hold within the company. Perhaps we were over-monitoring, but our company claimed a $100k loss per hour of downtime.

Incentivized

• It has allowed us to provide an Enterprise Event/Alert management solution to the Global company
• It has taken a long time to get it to provide valuable alerts and information, lots of user resources and investment.
• It assists with 24/7 monitoring and out of hours support

Incentivized

• Initial adoption required quite a lot of resources and time to get everything right. Totally worth it for us; just be prepared for a gradual process that will get better and better with time.
• Once setup and running smoothly, it provides us with all the reporting we could hope for, at near zero cost.
• With OpenNMS, we're able to offer a much more reliable service to our customers, and spend a lot less time dealing with issues.

Incentivized