> In my case, i have a 1.2TB filesystem which is currently holding 312GB > of mail. According to the values present earlier, i can have up to > 1268272861184/8192 (1.2TB/2^13) files/dirs. The magic number in my case > is 154818464. > > As i said, currently i have 312GB of used space on a single filesystem, > which holds aprox 16000 user maildirs. The total number of files+folders > on that filesystem is 7106571, which represents only 4.59% of the > maximum possible number of files/folders. The current occupancy rate is > 28%. Using this ratio as sample, i'd say that i'm pretty much safe ... > as i'm sure you'll be.
What kind of hardware are you running this on? 16K email accounts? Matt