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Re: Block-level CRC checks

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Block-level CRC checks
Date: 2008-09-30 20:41:59
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Lists: pgsql-hackers
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(at)momjian(dot)us>

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

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