[Dovecot] mailbox size limit

[Matt]

> 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