AIX NMON Data (and other)
LEM can take data from AIX syslog, and we have an AIX Agent for some IBM platforms. For others, you'll need to look at a third-party agent like Patrick Townsend. I don't see any reader for NMON in particular.
Unstructured Data
LEM parses data using "connectors," which is our term for "an XML file loaded with regex to parse and classify specific vendor or product log types and formats." We include a lot of connectors out-of-the-box, and as part of maintenance as a LEM customer you can request new connectors or improvements to existing connectors. You log line (which is terrible, btw: if this is a custom app, can you make it use the syslog RFC?) could be parsed, but when requesting a connector for a homebrew app (or anything) I think it's safe to say we consider the following:
- Is this a request that will benefit more than a single customer? (ie, if you noticed that your Cisco device was sending a log we didn't normalize, we'd want to help you out because it helps the whole customer base. Or, if you buy a new device or software from Wodget Corp, but it looks like Wodget Corp will eventually sell to thousands of people, we want to add Wodget Corp to our library)
- Is this a request that we can use pre-existing work to complete? If your logs follow a format we already have general readers for (like syslog or the Windows Event Log format), it makes a new connector a lot easier for us to build. If not, that can cause a longer dev cycle
- And this one is an open secret: Solarwinds is in this business to make money, so if this connector is holding up the sale or renewal of a million dollar LEM license, that helps it's priority
First thing based on that: is this app something that will ever be in the wild? Or is this just an internal application?
The other red-flag in your example is 'it might be single or multi-line,' and I can tell you that logs that jump back and forth between formats are a nightmare to normalize for LEM, especially if (as I suspect) your multi-line logs don't include indexes to link the multiple line together.