Alex Ignatov wrote:
> Hello everyone!
> Today in Big Data epoch silent data corruption becoming more and more issue
> to afraid of. With uncorrectable read error rate ~ 10^-15 on multiterabyte
> disk bit rot is the real issue.
> I think that today checksumming data must be mandatory set by default.
> Only if someone doesn't care about his data he can manually turn this option
> off.
In principle I support the idea of turning data checksums by default,
but can you provide some numbers on how it affects performance on
various workloads? That's a critical point in the discussion.
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Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
