What are homogeneous copy and heterogeneous copy and how
you will do that? how to impot the OSS notes? What is OCS
how to apply OCS patches? ABAP service pack level can found
in SPAM, but how to find the java stack level?

Answer Posted / raghu chukkapalli

Homogeneous copy is done when the source and target system
are on the same OS and Databse.
Heterogeneous Copy is done when the source and target
system differ either in OS or Database. Any ONE difference
needs a heterogeneous copy.
Homogenous copy is done by export/import technique.
Heterogenous copy is done by system migration. It is same
as export/import except that it will ask for target OS and
DB type and needs a key to be entered.
OSS notes are applied using T-code SNOTE.
Java stack level can be found at
http://hostname.domain.com/5<system no.>00
goto system info to find the java stack level.

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