What is meant by " Activation in Parallel"in DSO

Hi,
After loading the data into DSO , when we R.C> manage> rEQUEST TAB> select the request and click on activate .We get a screen with different options Like...Activation in parallel,Generation of SID's,start..etc
now my query is
What are these options meant for
1) activation in paralle.
2)Generation of sid 's
Can you please tell me why and when we use them.?Because ,we will Already set this options in setting of DSO.
Thanks in Advance,
Naresh.

Hi,
Activation in parallel means morethan one request gets activated at same time.When you have multiple requests which do not have overlapping data selection, you can activate such requests in parallel.This setting allows you to break up the activation process into mulitple background or dialog processes. Dialog are usually recommended but could depend on your system.By default in BI 7.0, it comes configured to perform 3 parallel processes. but you can check to see how your system is configured. Tran RSDSO_SETTINGS lets you change the setting for a specific DSO (ODS) where as RSBATCH covers a variety of systemwide parallel settings, e.g. rollup, aggregate fill,etc.
Regards
CSM Reddy

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