We would like to test old deltas from the source system( copied to new)

Question

Hi Gurus,
The scenario is
They will make a DB copy of the Prod system onto a QA system, the Copied system will have
its system ID changed(SID) to a new one.
There will be deltas available in the RSA7, as this is a copy of the  3 weeks old prod
system. Now the delta's will be available on the Copied system pointing to the BW Prod system.
We would like to test these delta's to BW Dev. why we would like to do the delta's to the
BW dev system is to check whether we can do system copies without clearing the delta's on
the source system.
After the system copy we will do all the activities necessary to reflect the system changes
a. Like BDLS, We20, we21,ALE checks, RFCDES, RSLOGSYSDEST, RSBASIDOC, etc on the source system to
reflect the changes of the BW Prod system to BW Dev system.
b. Likewise, we will perform all the above activities on the BW dev system by changing the
existing source system to the new source system( performing BDLS,we0, we21, etc)to reflect
the new Source system with the new (SID).
c. We will check the source system connection
d. Replicate the datasources on the new source system
e. Activate the Transfer rules for the new source system.
Now for us to do delta's from the new source system to the Bw dev system we need to change
underlying tables in source system to point the delta's, arfc TID's etc to the BW dev system.
We can change the entries in the TRFCQOUT, ARFCCSTATE, ARFCDATA tables to point the LUW's and
destination to the BW dev system.
What I presume is if we run the BDLS on the Copied system to change the BW prod system to BW
and also  the underlying Tables for the LUW's and etc will still be pointing to BW Dev. I would
like to know if this is the case .
Lastly, appreciate if anyone can say if this is possible to do without having to clear the
BW delta queue on the source system.

Answer 1

Hi Ramesh,
Appreciate a lot for your response, but i would like to know if we can reflect the entries in table RSSDLINIT(Last Valid Initializations to an OLTP Source) and RSSDLINITSEL(Last Valid Initializations to an OLTP Source)  in the BW system on the copied source system
tables ROOSPRMSC(Control Parameter Per DataSource Channel), ROOSPRMSF(Control Parameter Per DataSource Channel) by executing the ABAP program RSSM_OLTP_INIT_DELTA_UPDATE after we do the BDLS conversion on the new copied source system.
After the BDLS conversion I reckon the entries in the RSA7 queue, ARFCCSTATE, TRFCQOUT tables willl reflect the BW Development system instead of the BW Production system isnt it.
response much appreciated.
Kalyan