Re: [Qemu-devel] [RFC V4 00/30] QCOW2 deduplication

[Dietmar Maurer]

> > Venti is an example of an existing system where hash collisions were
> > ignored because the probability is so low.  See 3.1. Choice of Hash
> > Function section:
> >
> > http://plan9.bell-labs.com/sys/doc/venti/venti.html
> 
> 
> If you believe that it's 'extremely low', then please provide either:
> 
> * experimental evidence to prove your claim
> * an insurance underwriter who will pay-out if data is lost due to a hash
> collision.
> 
> What I have heard so far is a lot of theoretical posturing and no experimental
> evidence.

Venti is a well-known system, in use for more than 10 years - isn't that enough 
experimental evidence?

- Dietmar