Infrastructure Manager does not support the database provider. NIS features will be disabled.
Legacy SLM and NIS/Availability components are not supported against MySQL and Oracle.
You need to use the new RIA (Rich Internet Applications)/portlets through the UMP (Unified Monitoring Portal), NimsoftRemoteAdmin, AccountAdmin, etc.
In the case of MySQL, we cannot and will not add MySQL support to the Infrastructure Manager. IM has also been declared end-of-life (see end-of-life pdf on Nimsoft Support site Downloads page), and is considered feature complete. But most important, in practical terms this is not possible to achieve.
You will still be able to use the Infrastructure Manager from a Windows workstation to manage your hubs/probes, but it will not be able to interact with the database.
SLM (Service Level manager) is a portlet you can access and use in UMP.
NIS = NimsoftRemoteAdmin portlet and works in conjunction with USM (Unified Service Manager) portlet both in UMP.
AccountAdmin portlet and other available portlets provide features/functions you can use via the web.
You still have to install Infrastructure Manager on a Windows system to most easily manage your hubs/probes.
Since the backend is MySQL instead of MS SQL Server, there are some components which are not available on UNIX platforms and that's the expected message.
You can ignore the message. It comes up when you are running MySQL on Linux or UNIX because certain services aren't available on this systems. It's considered normal.