Motivation:
I started the upgrade of 7.3 portal system and sum is expecting <sid>adm password, and due to audit restriction we were not able use the <sid>adm in sum for the upgrade. I checked couple of documents about sum and I didn’t see any workaround for the same.
I checked one document which talks about DMO for HANA , observed that there was option where we can skip <sid>adm user/password(by changing the sumstart.conf file) and tried that option we moved forward but unfortunately started several issues with schema user and and several other issues(Even though I have given full permission and groups to the user) and ultimately resulted the restart of the upgrade with JSPM with the help of note 1563660 .
I checked with sap and they told that it is not meant for normal upgrade and it’s is only meant for DMO and it was not tested for other scenarios
Goal:
I spent several hours for investigating the workaround and picking the wrong tool again wasted several more working hours in solving the actual issue. I checked several blogs in SDN and here I would like summarize few points which gives idea when to use sum and sum with DMO , this is not new blog with entirely new content but I would like differentiate both the tools .
Software Update Manager:
SUM is used for all SAP NetWeaver based systems, so systems either based on AS ABAP, or AS Java, or based on a dual-stack system.
./STARTUP
http://<host name>:4239.
SUM with DMO
Database migration option (DMO) is an option in SUM - DMO is not a separate tool and this build is only using the ABAP part of SUM, called SAPup
2. Different start procedure
SUM is started in a different way: a browser request to the SAPHostAgent is used to start SUM, instead of starting SUM from the prompt/console. This allows you to start the SAPup process without having an additional server window open
Different UI
3. SUM shows a new user interface which is based on SAPUI5, which is currently exclusively available for DMO only.
4. The new UI is currently only available for the DMO procedure, but in the long run, it may become available for other use cases as well.
Where we can use
Scenario:
How to start SUM with DMO option
Run the command /usr/sap/<SID>/SUM/abap/SUMSTART confighostagent to create the file sumstart.conf in
Start the DMO Frontend with the following URL – (HTTP/HTTPS)
http://<server>.<domain>.<ext>:1128/lmsl/upgrade/<SID>/doc/gui
https://<server>.<domain>.<ext>:1129/lmsl/upgrade/<SID>/doc/gui
Using proper tools as suggested by sap will save your time And always it is recommend to use sap prefered tools and follow release notes and guides before planning any upgrade .
Referecens:
http://scn.sap.com/community/it-management/alm/software-logistics/blog/2014/03/10/dmo-technical-proc...
http://scn.sap.com/docs/DOC-49580
https://scn.sap.com/docs/DOC-46824
1600846 - JSPM/SUM Calls sapcontrol without user credentials
1563660 - sapcontrol, <sid>adm authorization issues (SUM)
SAP First Guidance - migrate BW on HANA with the
database migration option (DMO)
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