Typical Database Size

I already know the answer I’m going to get to this question but I told our IT department that I’d ask so I apologize ahead of time for the dumb question… :wink:

We run a clustered instance MS SQL server setup at our plant and it’s usually a good idea to get a database size roughed out ahead of time for new projects so the DBA’s can assign the appropriate amount of hard drive space to each database. That being said, is there some kind of standard to figure out a starting database size for a project with about 1000 historical tags, mostly real values, logging at about 1/second? I’d rather oversize the database right off the bat but not give them some ridiculously huge number and since I’m not a database guy I don’t know what’s reasonable. Any advice would be much appreciated. Thanks!