Microsoft's System Center Operations Manager (SCOM) is a monitoring and application performance management option, with the core datacenter and cloud-based systems monitoring.
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Oracle Enterprise Manager
Score 6.8 out of 10
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Oracle’s Enterprise Manager is an on-premises monitoring and management tool. The console is designed primarily to manage other Oracle products, it but can integrate to manage non-Oracle components as well.
OEM is very well suited for all Oracle products, especially Oracle databases and Exadata machines; even not Oracle hardware, it is very good and displaying high level details. OEM is not well suited for older hardware vendors like AIX, HP-UX, DEC/Digital, Microsoft (sql server). This is a big negative as most large companies have a heterogeneous environment with many different vendor hardware and (database) software products.
Database status. Being able to see which databases are up/down, at a glance, allows us to quickly react to issues.
Reporting. We report on last backups, daily status, a host of metrics, and compliance levels of all our databases. With reporting we come into the office with a set of "status" reports and we know instantly if a database has issues.
Metrics. We have a number of KPI's and SLA's we need to meet. Metrics applied to the databases allow us to stay on top of those requirements as well as fix common issues without a DBA needing to log in to assess the issue.
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The OOB SCOM reports are a bit clunky and feel outdated.
We also use OEM to monitor SQL Server. However, OEM only provided limited features for SQL Server. It would be nice if we can schedule backup jobs for SQL Server in OEM.
The ability to run SQL queries. You can't run queries in OEM. I have to go to SQL Developer or SQL PLUS to run. queries.
I still rate OEM as a must-have tool for central management of Oracle fleet. The pros and cons of the product is prominent. Meanwhile, I also acknowledge that OEM was design about a decade ago. At that time, it did not have the landscape we have today, such as cloud, DEVOPS, machine learning, etc. I hope in future releases, the design will incorporate those features.
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.
Toad for Oracle is more suited for individual users who have a strong focus on database development, and it is not as comprehensive as Oracle Enterprise Manager. While it is quite decent in logical database layer tasks, such as schema objects and SQL, it lacks visibility into host level and I/O layer performance stats.
