I’ve written a series on creating an “Application Profile” for your organization, which allows you to create a strategic plan on everything from Business Continuity to Disaster Recovery, but many of us just don’t have the time to do that much work.
But that doesn’t mean you shouldn’t do *something*. There is one very important bit of information to have – the names of the applications that run against your SQL Servers and who wrote them. Versions would also be useful; but at least know the applications you have and whether they are from an Independent Software Vendor (ISV) or whether your developers wrote them (also called in-house). In an emergency or in Business Continuity planning, and even in sizing and licensing, this is invaluable.