Where is the proof of Exadata load rates of 5Tb/hour

I ask this because we cant come close to this.. Is it just a theoretical exercise? Or something that is very restricted?
ie. if you load 5Tb of data consisting of 1 column of 10 characters, you can complete this in 1 hour?
Whats the real world expectations for load times into the db (assuming the data already resides in DBFS - if that makes things any better)
Oracle says ...
Optimized for real-world data loading
•Only Oracle provides multi-version read consistency with the ability to load at up to 5TB/hr
Pg 41.
http://www.google.com/url?sa=t&source=web&cd=11&ved=0CBEQFjAAOAo&url=http%3A%2F%2Fioug.itconvergence.com%2Fpls%2Fapex%2FNJOUG.download_my_file%3Fp_file%3D521.&rct=j&q=exadata%205tb%20dbfs&ei=Iwp3TJX_O83PngeSqM2dCw&usg=AFQjCNGD6h7WdPg9TsV2_TO0HEVfmt3ZVA&cad=rja
Daryl.

Hi Daryl,
-exadata full rack
- dbfs
time sqlldr direct=true control=random.ctl parallel=true
Let me try ...
So my test ..
8.2g in 400s, or 73G / hrYou have a full rack!!!!
You should use the whole "power" that You have for processing this load. First of all, I suggest You to change the load strategy from sqlloader to ITAS (insert /*+ APPEND .... from select ... )or CTAS ( create table .... as select .... ) reading from External Tables. The main reason is, even if You are using the parallel=true clausule on sqlloader, We are talking about only one server, it's not dividing the load amog all servers, using slaves on all servers available for that.
A "starting shot" on new load strategy would be changing the degree from external table to default ( create or alter the external table to parallel ) and also for the table table will be loaded. After that, before starting the load, You should enable parallel dml or parallel ddl ( depends on what You've choosen... in case of CTAS "alter session force parallel ddl", for ITAS "alter session force parallel dml") and verifying if the plan is using parallelism for both operations, load and select.
As I don't have an idea of how is the workload of Your machine... If default degree consumes a high CPU time from those servers and due to that will impact the behaviour of the other sessions, I'd advise You to test the load with 32, 64 and 128 ( changing the parallelism from ET and also the loading table to those values).
Test this and give us the results...My guess is the results will be better than what You can imagine... :)
Regards,
Cerreia

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