petermoe
It really seems not an easy question to get answered = how do I find out if a system can run 3 TB drives?
Based on comments in those links I provided:
Your 3Tb drive (and anything larger than 2Tb) will not be addressed correctly by the sme (Anaconda) installer which uses fdisk which has a 2Tb format limit, so sme will only see the first 2Tb of any larger drive.
Due to lack of upstream support in the base OS, you cannot install sme server to a GPT partitioned drive (which does support drives larger than 2Tb).
So the idea is to keep your install drive less than 2Tb, and add other drives/partitions (that are using GPT partition table) which can be larger than 2Tb.
The upper possible storage limit is very high ie 10's of Tb's, which I think depends on which base OS version you use & whether 32 bit or 64 bit architecture.
Note: you need to prepare (ie partition) your larger than 2Tb drives appropriately before installing sme server, either manually for single drives, or using a drive controller software for multiple drive arrays that use a hardware controller.