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Archives of the TeradataForum
Message Posted: Fri, 22 Oct 2004 @ 08:01:27 GMT
| Subj: | | Re: V2R5 Upgrade and CHECKSUM |
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| From: | | Victor Sokovin |
Mark,
| | Today's high speed processors, memories and advanced caching make it reasonable to perform a checksum in software, trading data integrity
protection for a moderate performance impact. This tradeoff can be fine tuned through the advanced controls offered by the Teradata Disk I/O
Integrity Check Feature. First, the feature is optional. Second, the feature may be enabled on a table by table basis. Third, the checksum may
be applied to some or all of the data corresponding to each disk sector. | |
I recently had a chance to look at some CRC calculations (outside of Teradata but that's aside) and am now convinced that it is not a
luxury thing to calculate them on a regular basis. Thanks for the heads up on this new feature in TD. Could you explore a bit more on the last
part you mentioned, i.e., the disk sector level?
Regards,
Victor
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