How To Fix RSRV580 - Space consumption of MDC InfoProviders in DB2 f. Linux, UNIX and Windows

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRV -

• Message number: 580

• Message text: Space consumption of MDC InfoProviders in DB2 f. Linux, UNIX and Windows

Description
For InfoProviders that use multi-dimensional clustering (MDC) on DB2 for
Linux, UNIX and Windows, this test determines the percentage of
allocated disk space that is free. If the free space is more than 33%,
you should consider reclustering the InfoProvider.
An MDC table is physically organized such that data rows having the same
values in the MDC dimension columns are grouped together into separate
blocks. Every unique combination of values in the MDC dimension columns
forms a logical cell for which one or more blocks of pages may be
allocated. The number of pages in a block corresponds to the size of the
table space in which the table resides.
The test displays the following detailed information about MDC space
consumption for the F and E fact tables of InfoCubes:
Number of rows in the table
Number of MDC logical cells for which blocks have been allocated
Cardinality of the MDC dimensions
Number of allocated pages in the table
Number of empty pages in the table
Allocated space for the table in KB
Empty space for the table in KB
For each aggregate that uses MDC, the test provides the percentage of
space allocated for the aggregate that is free. If the free space is
more than 33%, you should consider disabling MDC clustering for the
aggregate.
The detailed information about MDC space consumption for DataStore
objects is provided for the table containing the active data.
The test computes the information from the latest collection of
statistics. If the database statistics are not current, the results may
be imprecise.
Repairs
This test provides no repair function.
Reclustering can be used to reduce space consumption for InfoCubes and
DataStore objects. With reclustering, MDC clustering can be disabled or
the MDC dimensions can be changed. Reclustering is invoked from the
context menu of the InfoProvider.
MDC clustering can be disabled for aggregates in the aggregate
maintenance screen by choosing <ZK>Change Partitioning</> from the
<ZK>Aggregate</> menu.

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSRV580 - Space consumption of MDC InfoProviders in DB2 f. Linux, UNIX and Windows ?

  The SAP error message RSRV580 indicates that there is a space consumption issue with Multi-Dimensional (MDC) InfoProviders in a DB2 database environment. This error typically arises when the database is running low on space, which can affect the performance and functionality of the SAP system.
  Cause:
  
  Data Volume: The primary cause of this error is often the accumulation of large volumes of data in the MDC InfoProviders, which can lead to excessive space consumption.
  Database Configuration: Inadequate database configuration or settings that do not allow for efficient space management can also contribute to this issue.
  Retention Policies: Lack of proper data retention policies may result in unnecessary data being retained in the database.
  Indexing and Statistics: Poorly managed indexes or outdated statistics can lead to inefficient space usage.
  
  Solution:
  
  Data Archiving: Implement data archiving strategies to remove old or unnecessary data from the MDC InfoProviders. This can help free up space in the database.
  Database Maintenance: Regularly perform database maintenance tasks such as reorganization and compression to optimize space usage.
  Monitoring and Alerts: Set up monitoring tools to keep track of space consumption and configure alerts to notify administrators when space usage reaches critical levels.
  Adjust Database Configuration: Review and adjust the database configuration settings to ensure optimal space management. This may include increasing the allocated space for the database or adjusting the parameters related to data storage.
  Review Data Models: Analyze the data models and InfoProviders to identify any that may be consuming excessive space and consider redesigning them if necessary.
  Update Statistics: Ensure that database statistics are up to date to help the database engine make better decisions regarding space allocation and usage.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to this error. SAP Notes often contain specific instructions or recommendations for resolving known issues.
  DB2 Documentation: Refer to the official DB2 documentation for best practices on managing space and optimizing performance in a DB2 environment.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Performance Tuning: Consider performance tuning of the database and InfoProviders to improve overall efficiency and reduce space consumption.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the RSRV580 error and improve the overall health of your SAP system.