this particular section of the venti man page
formats particularly poorly unless man is given the
-P option.

(maximum 512MB, 2\s-2\u32\d\s+2 bits).
.PP
The bloom filter should be sized so that
.I nhash
\(mu
.I nblock
\(<=
0.7 \(mu
.IR b ,
where
.I nblock
is the expected number of blocks stored on the server
and
.I b
is the bitmap size in bits.
The false positive rate of the bloom filter when sized
this way is approximately 2\s-2\u\-\fInblock\fR\d\s+2.
.I Nhash

- erik

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