Support project (more details)

Question

Hi Guys,
   I am fresher in BW, I have client round in support project 
  What type off question they will ask, I need more details about tickets,
   How many types off ticket? Anybody Immediately I need answer me
Regards
Ravi

Answer 1

Hi Ravi,
Normally the production support activities include
Scheduling
R/3 Job Monitoring
B/W Job Monitoring
Taking corrective action for failed data loads.
Working on some tickets with small changes in reports or in AWB objects.
The activities in a typical Production Support would be as follows:
1. Data Loading - could be using process chains or manual loads.
2. Resolving urgent user issues - helpline activities
3. Modifying BW reports as per the need of the user.
4. Creating aggregates in Prod system
5. Regression testing when version/patch upgrade is done.
6. Creating adhoc hierarchies.
Also refer these posts:
Re: In production Support , how i can acquire the knowledge
Re: How to resolve tickets  its urgent
Re: production support issues
production support
we can perform the daily activities in Production
1. Monitoring Data load failures thru RSMO
2. Monitoring Process Chains Daily/weekly/monthly
3. Perform Change run Hierarchy
4. Check Aggr's Rollup
To add to the above
1)check data targets are ready for reporting,
2) No failed or cancelled jobs in sm37 monitors and Bw Monitor.
3) All requests are loaded for day, monthly and yearly also.
4) Also to note down time taken for loading of critical info cubes which are used for reporting.
5) Is there any break in any schedules from your process chains.
Siggi's weblogs for data load error and how to restart process chain
/people/siegfried.szameitat/blog/2005/07/28/data-load-errors--basic-checks
/people/siegfried.szameitat/blog/2006/02/26/restarting-processchains
As the frequent failures and errors , there is no fixed reason for the load to be fail , if you want it for the interview perspective I would answer it in this way.
a) Loads can be failed due to the invalid characters
b) Can be because of the deadlock in the system
c) Can be because of previous load failure , if the load is dependant on other loads
d) Can be because of erroneous records
e) Can be because of RFC connections
These are some of the reasons for the load failures.
1. Why there is frequent load failures during extractions? and how to analyse them?
If these failures are related to Data, there might be data inconsistency in source system. Though we are handling properly in transfer rules. We can monitor these issues in T-code -> RSMO and PSA (failed records) and update.
If we are talking about whole extraction process, there might be issues of work process scheduling and IDoc transfer to target system from source system. These issues can be re-initiated by canceling that specific data load and ( usually by changing Request color from Yellow - > Red in RSMO). and restart the extraction.
What is the daily task we do in production support.How many times we will extract the data at what times.
It depends... Data load timings are in the range of 30 mins to 8 hrs. This time is depends in number of records and kind of transfer rules you have provided. If transfer rules have some kind of round about transfer rules and updates rules has calculations for customized key figures... long times are expected..
Usually You need to work on RSMO and see what records are failing.. and update from PSA.
What are some of the frequent failures and errors?
As the frequent failures and errors , there is no fixed reason for the load to be fail , if you want it for the interview perspective I would answer it in this way.
a) Loads can be failed due to the invalid characters
b) Can be because of the deadlock in the system
c) Can be because of previous load failure , if the load is dependant on other loads
d) Can be because of erroneous records
e) Can be because of RFC connections
These are some of the reasons for the load failures.
for Rfc connections:
We use SM59 for creating RFC destinations.
Refer the help on creating source system:
http://help.sap.com/saphelp_nw2004s/helpdata/en/ac/4a4e38493e4774e10000009b38f889/frameset.htm
http://help.sap.com/bestpractices/crossindustry/businessintelligence/v131/BBLibrary/documentation/B84_BB_ConfigGuide_EN_DE.doc
Data Validation:
In BW any extraction we have to do Data Validation ..i.e.. data comparision between BW side and Source System side (Ex..R/3). Normally we do it in Unit Testing.
Pls do check the link below
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/8c92d590-0201-0010-5aa0-ee7a993f295c
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/968dab90-0201-0010-c093-9d2a326969f1
upgrade
Check the INSTGUIDES from market place related to 04S upgrade:
https://websmp106.sap-ag.de/~form/sapnet?_SHORTKEY=01100035870000659945&_SCENARIO=01100035870000000202&
Also:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/2e8e5288-0b01-0010-2ea8-bcd4df5084a7
Release notes for 04s:
http://help.sap.com/saphelp_nw2004s/helpdata/en/57/a21f407b402402e10000000a1550b0/frameset.htm
take a look in:
www.service.sap.com/bi --> Product Information Previous Releases --> Media Library --> HOW TO... Guides --> Guide List SAP BW3.5 - Part of NW 04 --> Business Intelligence --> How to… SAP BW 3.5 upgrade prep & postupgrade checklist.
Here you will find all necessary steps for an Upgrade.
Source system
http://help.sap.com/saphelp_nw04/helpdata/en/7a/27bcf087c7464db8b95eaa717b6e6a/content.htm
Dead Locks
Refer the lniks:
Re: cube lock when multi-request insert at same time
Re: Dataloading Shortdump
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Regards,
Ravikanth