ODS changes after server upgrade?

Hi

I will be upgrading one of our servers currently running 5.0.8.

It has 414gb of databases on it, and I would like to leave the ODS at 41 if possible, and then run fixup, compact and updall at the weekend to bring everything up to 43.

The time window for completing this task is short (4 hours), so in order to save time I need to know if I disable compaction in the NOTES.INI, will the server still attempt to upgrade everything, or even worse, retain ODS 41 and build extra indexes in all the dbs meaning we run out of disk space (maybe panicking a bit here, 172gb remains free on the drive).

Thanks! - Suzie

Subject: ODS changes after server upgrade??

Forgot to add, we are making a new installation of 6.5.2 and then moving the databases into the data directory.

Suzie