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Archives of the TeradataForum
Message Posted: Thu, 28 Sep 2006 @ 17:53:43 GMT
| Subj: | | Re: RAM Increase |
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| From: | | Anomy Anom |
<-- Anonymously Posted: Thursday, September 28, 2006 13:40 -->
Hi Bill,
It is my understanding that all new Teradata features introduced starting with V2R5.0 rely on a larger node memory availability for best
performance, for instance Cylinder Slots/AMP may improve I/O throughput significantly, because a single read operation loads a complete cylinder
of data to node memory, instead of performing multiple I/Os, one for each data block in the cylinder. You need to dedicate reserved memory buffers
for this feature, the default is 4 buffers per AMP, but you may tune this in order to improve performance for your specific workload. Being a DSS
shop probably you have many FTS (Full Table Scans) that could run faster.
Cylinder Slots/AMP is just an example, I think it's a very good investment to increase memory to 4 GB in older MP RAS nodes if you would like
to take the best advantage of all the new functionalities released during the last two or three years.
Regards.
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