On Tue, 30 Sep 2008 13:48:52 -0700
"Jeffrey Baker" <jwbaker@gmail.com> 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/
