So I've been investigating my environment and have noticed that another admin built ~20 lpars without any paging space in rootvg, and without a paging space called hd6 - the boot scripts were not modified either. I've been looking for information on why this isn't a good idea and whether or not this is a supported configuration by AIX support and so far haven't found anything useful.
Has anyone run into this before? What issues did you encounter during updates, migrations, booting, any performance impact?
Does anyone have any official documentation from IBM going either way (required paging in rootvg, not required)?
This was done on AIX 6.1 if it matters.