The BW application log contains error and status information stored in BAL* tables like BALDAT, which can grow very large over time and slow down read and write activities; it is recommended to schedule regular deletion of unneeded log entries using transaction SLG1 to prevent performance issues from large log tables.

1. BW Systemadministration – Portfolio
Extraction and Data Transfer BW Transport Management System
Data Load Monitoring, Periodical jobs and tasks
Reload and Repair
ODS and Datamart Handling BW Basis Configuration
Process Chain Load Balancing &
Architecture & Functionality Number Range Buffering
Process Chain Monitoring&Handling of Changerun
Modeling Aspects
Process Chain BW Security and Authorization
Monitoring & Error Handling Aspects
Data Modelling from the BW System Copy
technical point of view
BW Statistics and BW Backup and Restore
Query Tuning with Aggregates(RSRT)
 SAP AG 2005, BW System Administration / 1
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2. Contents
Periodical Basis Jobs
Periodical Application Jobs
Periodical Monitoring Tasks
 SAP AG 2005, BW System Administration / 2
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3. SAP Basis Job: SAP_CCMS_MONI_BATCH_DP
Job: SAP_CCMS_MONI_BATCH_DP
Monitoring of Process Chains (all process types)
Post-Processing
Purposes:
1. Trigger post-processing successors of
failed process types (exceptions which
aren’t detected automatically)
2. Overall (not just BW) Application and
Basis Alert-Monitoring with CCMS-Alert-
Monitoring (RZ20)
 SAP AG 2005, BW System Administration / 3
The job SAP_CCMS_MONI_BATCH_DP is scheduled hourly by default and
collects alert information for the Alert-Monitoring-Tool (transaction RZ20).
In a BW system, this report contains a watchdog functionality for the Process
Chains and is the interface to the Alert-Monitoring (RZ20). If any error situation
occurs during a run of a Process Chain, this report sends a notification to the Alert-
Monitoring. On the other side it checks the execution of a Process Chain for not
expected error situations meaning problems that can’t be handled by the BW
Process Chain architecture. This makes sure that the post-processing (red arrows)
is executed in any case.
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4. SAP Basis Job: SAP_CCMS_MONI_BATCH_DP
RZ21:
Activating Background dis-
patching means that Batch Job
SAP_CCMS_MONI_BATCH_DP
is scheduled hourly
SAP_CCMS_MONI_BATCH_DP
also collects information for all
other (passive) data collectors
which are used in CCMS. This
job is not BW specific!
Deletion of job
SAP_CCMS_MONI_BATCH_DP
influences other basis
monitoring activities as well
 SAP AG 2005, BW System Administration / 4
The job SAP_CCMS_MONI_BATCH_DP is scheduled hourly by default. The
minimum time range between two executions must be higher than 300 seconds.
4

5. DB13: BRCONNECT
BRCONNECT/DB13
can be used to collect Oracle Optimizer statistics, perform a
database system check, collect space statistics….
alias: http://service.sap.com/dbaora
General Recommendation:
Schedule BRCONNECT database jobs as in R/3
 SAP AG 2005, BW System Administration / 5
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6. DB13: BRCONNECT
BW specific recommendations
Schedule an optimizer statistics update after large
changes in data. E.g. usually after the daily upload has
finished.
With Oracle 9.2, use BRCONNECT 6.40
Switching on the monitoring option and running
BRCONNECT in parallel improve the performance of the
job.
 SAP AG 2005, BW System Administration / 6
For BW it is specifically recommended to use BRCONNECT 6.40 (Oracle 9.2)
BRCONNECT 6.40 contains additional functionality for Optimizer statistics collection, especially
for partitioned tables. Refer to SAP note 744483.
Switching on the monitoring option and running BRCONNECT in parallel improve the
performance of the job.
After installing BR*Tools 6.40, you must collect new statistics again for all tables, so as to have a
proper starting point for collecting column statistics. To do this, start BRCONNECT as follows:
brconnect -u system/<pwd> -c -f stats -t all -f allsel,collect,monit [-p 8]
DAILY procedure to renew statistics:
brconnect -u system/<pwd> -c -f stats -t all -f monit [-p 4]
Refer also to SAP note 129252
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7. Contents
Periodical Basis Jobs
Periodical Application Jobs
Periodical Monitoring Tasks
 SAP AG 2005, BW System Administration / 7
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8. SAP_INFOCUBE_INDEXES_REPAIR
Functionality:
Report to check for and repair missing indexes
Run in transaction se38
Recommendation:
Schedule weekly
 SAP AG 2005, BW System Administration / 8
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9. BW Customizing: RSMONASSISTANCE
Job: RSMONASSISTANCE
Monitoring of data requests only
BW Customizing - Setup
Monitoring of data requests only
Can run several times per day
E-Mail notification possible
Alert depends on Monitoring
waiting time and job frequency
Catches exceptions that can’t
be detected by the system
automatically
 SAP AG 2005, BW System Administration / 9
Activities
Schedule the monitor assistant in the background. As a repeat frequency, select
how often you intend to load data.
Recommendation
The assistant investigates all new requests that were started after a certain date.
Create a variant for the monitor assistant and enter this date. If no date is entered,
the actual date is used.
Further notes
If you are dealing with an upgrade system, and you chose a date in the past, the
first run time can possibly take a long time.
Error Notification and post-processing
In case of an error the system can be setup to sent an email. The maximum time
passed between the occurrence of the error and the notification/post-processing
depends on the Monitor Waiting Time and the frequency of the job.
The system-wide setting of the Monitor Waiting Time is setup in the BW
Customizing ‘Set Traffic Light Waiting Time’. In the Scheduler, you can set the
maximum wait time after which a request is to be set to red in the Monitor for each
InfoPackage. Do this via Scheduler -> Timeout-Time/Warning Handling. This setting
overrides the system-wide setting for a particular InfoPackage. The prerequisite for
changing the status after the maximum time has elapsed is that the request is
analyzed by the Monitor assistant. Only if this happens can any resulting post-
processing processes be triggered by the request.
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10. Application Log
BW uses frequently the application log
Application log: tables: BAL* (mainly BALDAT)
Problem: with huge application log tables read and write activities to the
related tables are slow
Solution:
1. Method: Delete specific time range of application log with Tcode SLG2
(no restore possible!)
2. Method: archiving application log with archiving object:
BC_SBAL with Tcode SARA
BC_SBAL Archiving Object for
Application Log
Actions
Write
Delete
Management
 SAP AG 2005, BW System Administration / 10
Two methods for reorganizing possible:
Tcode SARA: archive data backup of application log information on a optical drive, etc. possible
Tcode SLG2: direct deletion of application log information possible, no restore possible
Display application log: Tcode: SLG1
Heavy use of application log in BW in all WHM acitivities (data load, rollup, compress, ...)
Check size of table BALDAT periodically
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11. Deletion of Info IDocs
Each IDoc is stored in tables EDI* (mainly EDI40)
Heavy usage of Info IDocs in data load activities
With huge IDoc tables: starting of detailed view in data load
monitor takes a long time
Solution: archive and delete IDocs: Tcode SARA, archiving
object: IDOC
IDOC IDOC – Intermediate Document
Actions
Write
Delete
Read
Management
 SAP AG 2005, BW System Administration / 11
It is not possible to delete these IDocs without archiving
In Tcode SARA: Fixed sequence: First archive IDocs and then delete IDocs from table EDI40, etc
Because of less importance of old Info Idocs, archiving to filesystem is quite enough (usually no
optical drive, etc. necessary)
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12. Report SAP_DROP_TMPTABLES
Functionality
Drops unused BW temp tables
temporary tables starting with /BIC/01..., /BI0/02..., /BI0/03...
Recommendation:
Define a variant for report SAP_DROP_TMPTABLES.
Schedule a monthly job called SAP_DROP_TMPTABLES, with report
SAP_DROP_TMPTABLES as a job step.
For detailed information: SAP Note 449891.
 SAP AG 2005, BW System Administration / 12
Report SAP_DROP_TMPTABLES removes temporary objects (temporary tables starting with
/BIC/01..., /BI0/02..., /BI0/03...) from the database. BW uses several temporary objects for query
and other processing. These temporary objects are often created outside the ABAP Dictionary for
performance reasons or because they cannot be defined there (like stored procedures or triggers).
12

13. BW Statistics
If BW statistics switched on for a certain infoprovider tables
RSDDSTAT* tables are filled.
Tables are growing continuosly
No archiving object for these tables available
Manual deletion necessary
(e.g. yearly)
 SAP AG 2005, BW System Administration / 13
Details later in chapter ‚BW Statistics‘
For reorganisation of these tables use deletion button in RSA1 Tools BW Statistics delete.
You have to specify the time range. Entries from all statistic tables RSDDSTAT* will be deleted.
Tool ‚RSA1 Tools BW Statistics delete‘ refers to tables RSDDSTAT,
RSDDSTATAGGR, RSDDSTATAGGRDEF, RSDDSTATWHM. RSDDSTATCOND
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14. Table Reorganisation
Reasons for table reorganization
Performance for accessing data
Reuse of diskspace for other tablespaces (issue for upgraded
systems)
Change of physical locations (tablespace)
Change of storage parameters
Archiving
Reorganize using the BRSPACE tool (note 647697).
 SAP AG 2005, BW System Administration / 14
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15. Standard Jobs – Reorganization Jobs
SAP NOTE 16083 R/3 + BW 449891
Job name Program Variant Repeat
SAP_REORG_JOBS RSBTCDEL yes daily
SAP_REORG_SPOOL (130978 + 48400) RSPO1041 yes daily
SAP_REORG_BATCHINPUT RSBDCREO yes daily
SAP_REORG_ABAPDUMPS RSSNAPDL yes daily
SAP_REORG_JOBSTATISTIC RSBPSTDE yes monthly
SAP_COLLECTOR_FOR_JOBSTATISTIC RSBPCOLL no daily
SAP_COLLECTOR_FOR_PERFMONITOR RSCOLL00 no hourly
SAP_COLLECTOR_FOR_NONE_R3_STAT RSN3_STAT_COLLECTOR (>= 6.20) no hourly
SAP_REORG_PRIPARAMS (>= 4.6B) RSBTCPRIDEL (307970) no monthly
SAP_REORG_XMILOG (>= 4.6C 182963) RSXMILOGREORG yes weekly
SAP_CCMS_MONI_BATCH_DP (>=4.6A) RSAL_BATCH_TOOL_DISPATCHING no hourly
RSPO1043 (48400) RSPO1043 yes daily
RSTS0024 (>= 4.6B 666290) RSTS0024 yes daily
RSBTCDEL2 (728947) RSBTCDEL2 weekly
PSPO0042 (TSPEVDEV XOM interface) RSPO0042 (>=4.6B 168529) Weekly
SAP_DROP_TMPTABLES (>= 3.x 449891) SAP_DROP_TMPTABLES
 SAP AG 2005, BW System Administration / 15
The above table is provided so that you can check the necessary required jobs and
their required execution frequency. With the newer SAP versions the TC SM36 can
be used to plan these jobs, however first delete the planning before using the
transaction to insure the jobs are only in the system as required. Multiple executions
of the SM36 will plan additional executions.
15

16. Contents
Periodical Basis Jobs
Periodical Application Jobs
Periodical Monitoring Tasks
 SAP AG 2005, BW System Administration / 16
16

17. Operations Manual – Basis Monitoring
Many BW Basis monitoring tasks are similar to those in R/3
Recommendation
An operations manual that covers specific production tasks
and responsible persons.
 SAP AG 2005, BW System Administration / 17
17

18. Monitoring Query Performance – ST03
1. Switch to 2. Choose right 3. Sort by 4. Check for
‚Expert Mode‘ Aggregation number of log running
and press Level (Cube or navigations queries
‚Save View‘ Query level)
The data comes
from table
RSDDSTAT,
which contains
all this
information +
some more
details.
Sometimes it is
useful to table
RSDDSTAT
directly
 SAP AG 2005, BW System Administration / 18
18

19. Basis Monitoring - CCMS
CCMS – Monitor set for BW
http://service.sap.com/monitoring
 SAP AG 2005, BW System Administration / 19
Basis parameters for BW systems: Note
19

20. Basis Monitoring – General
SAP Buffer Monitor – ST02
NB: Export/import buffer SHM (OLAP Cache):
Operating System Monitor – ST06
Database Performance Monitor – ST04
NB: BW query statements do not use bind variables so are
not stored in the Oracle SQL cache
Database Monitor – DB02
System log - SM21
ABAP Runtime Errors (short dumps) – ST22
RFCs in BW and each connected source system - SM58,
SMQ1
Background jobs - SM37
 SAP AG 2005, BW System Administration / 20
Basis parameters for BW systems: Note
20

21. Basis Monitoring - General
RSRV checks
Review EWA Reports
 SAP AG 2005, BW System Administration / 21
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