Our database structure is so that 95% of the storage is used by 1 table. This table Is partitioned and indexed. This is working fine and we can handle big volumes with datbases over 5-6 TB.
Now one of our customers is worried that MDF-files over 2TB will be unstable and cause performance degradation in SQL Server. We claim the opposite - that one file is better - but since we don´t have benchmarking based on multiple files, we´re not getting ahead in the discussion.
Grateful for all hard facts and studies I can point towards.
/Johan