TM1 Forum

This is one that comes up occasionally, usually coincident with unexplained server crashes and glitches. I thought that I'd add it in as a post for search purposes.

It's long been a rule of thumb that the TM1 data directory should be excluded from virus scans. The results if a virus scanner has a lock on a file that TM1 is trying to write to can be... unfortunate.

Yesterday IBM published a more expansive technote on this point which can be found here.

In a nutshell the folders that they recommend excluding are:

- The TM1 data directory
- The TM1 logging directory (if not in the data directory)
- The directory where the tm1s.cfg file is located (if not in the data directory)
- The directory where any Excel sheets (or other docs) are located and uploaded to the TM1 server as a reference
- The directory where any flat files may be written to (output from a TI process, for example) or pulled from (import into a TI process, for example)
- Any other databases being used by a TM1 process (Oracle, SQL Server, MSAS, etc.)
- The TM1Web/TM1WebEx files - by default located at: C:\Inetpub\wwwroot\

I'm not sure that a lot of IT departments would be crazy about excluding all of these, and I suspect that the exclusion of the databases scan is more an issue of performance than stability.

Thanks for this Interresting update.
Another area to be looked at in case of perf / stability issues...

I can't imagine any sensible security wonk agreeing to exclude a folder (}Externals) holding Excel workbooks from a periodic virus scan. What tripe.