On Tue, 30 Sep 2008 13:48:52 -0700 "Jeffrey Baker" <[EMAIL PROTECTED]> wrote:
> > Practically all of them. Here is a good paper on various checksums, > their failure rates, and practical applications. > > "Parity Lost and Parity Regained" > http://www.usenix.org/event/fast08/tech/full_papers/krioukov/krioukov_html/index.html > In a related article published in Login called "Data Corruption in the storage stack: a closer look" they say: During a 41-month period we observed more than 400,000 instances of checksum mistmatches, 8% of which were discovered during RAID reconstruction, creating the possibility of real data loss. They also have a wonderful term they mention, "Silent Data corruptions". Joshua D. Drake [1] Login June 2008 > -jwb -- The PostgreSQL Company since 1997: http://www.commandprompt.com/ PostgreSQL Community Conference: http://www.postgresqlconference.org/ United States PostgreSQL Association: http://www.postgresql.us/ -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
