I've been tasked with calculating the rate of data change across all of our servers that are to be backed up with Backup Exec 2012. We need this information to determine the size of the deduplication volume that we need for this to work. We have purchased the dedupe option already.
I've tried to do my due dilligence in researching this, grilling Symantec support reps and "sales engineers" ( who are useless and exist only to sell the product - indeed, this experience has taught me the true meaning of the title "sales engineer" - a waste of space. One of these..."engineers" even went so far as to ask me during a conference call WITH MY BOSS, "did you do your research?" ), but I'm at a loss as to how to prepare this analysis.
I suspect that this requires a historical account, broken down weekly or monthly, of disk space used up across all of the servers / partitions / folders that we desire to back up.
Well I don't have that! So...what now? Do I bust out my business Calculus book for this?