Tuesday, September 30, 2008

Re: [HACKERS] Block-level CRC checks

Alvaro Herrera wrote:
> A customer of ours has been having trouble with corrupted data for some
> time. Of course, we've almost always blamed hardware (and we've seen
> RAID controllers have their firmware upgraded, among other actions), but
> the useful thing to know is when corruption has happened, and where.
> So we've been tasked with adding CRCs to data files.

Maybe a stupid question, but what I/O subsystems corrupt data and fail
to report it?

Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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