Thread: CRC protection of data?

CRC protection of data?

From
Henrik Jönsson
Date:
Hi,

Is there any built-in support in Postgresql to calculate and verify a
checksum of the data read to and from the disc?
I found some posts regarding this that said there was some code
developed. But I can't see if this is in any release of pg.
http://postgresqlorg.blogspot.com/2008/09/re-hackers-block-level-crc-checks.html

Regards
Henrik

Re: CRC protection of data?

From
Tom Lane
Date:
=?ISO-8859-1?Q?Henrik_J=F6nsson?= <hjoensson@gmail.com> writes:
> Is there any built-in support in Postgresql to calculate and verify a
> checksum of the data read to and from the disc?

No.  It's been looked at; the costs would be far out of proportion
to the benefits.

            regards, tom lane