Sa?o Kiselkov <skiselkov...@gmail.com> wrote: > On 07/11/2012 10:47 AM, Joerg Schilling wrote: > > Sa??o Kiselkov <skiselkov...@gmail.com> wrote: > > > >> write in case verify finds the blocks are different). With hashes, you > >> can leave verify off, since hashes are extremely unlikely (~10^-77) to > >> produce collisions. > > > > This is how a lottery works. the chance is low but some people still win. > > > > q~A > > You do realize that the age of the universe is only on the order of > around 10^18 seconds, do you? Even if you had a trillion CPUs each > chugging along at 3.0 GHz for all this time, the number of processor > cycles you will have executed cumulatively is only on the order 10^40, > still 37 orders of magnitude lower than the chance for a random hash > collision.
This is not how chance works. Jörg -- EMail:jo...@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin j...@cs.tu-berlin.de (uni) joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily _______________________________________________ zfs-discuss mailing list email@example.com http://mail.opensolaris.org/mailman/listinfo/zfs-discuss