In the section entitled "Calculate Storage Sizing" in the technet article here:
there are a number of useful formulas for calculating various aspects of the search system. However, in the section that describes how to calculate the search administration database size, the formula is:
Multiply number of items in the index (in millions) by 0.3. This is the SearchAdminDBSize.
Frankly, that doesn't make much sense to me. Is that in KB? MB? GB? How does the number of items get translated into a size? Is it widely known that each item in the index is a certain size? What size is that?
Anyone out there have any insight into this, or know the real formula?