Finding the size of a COVERED or VIRTUAL area

Products

• Datacom
• Datacom/AD
• Datacom/DB

Issue/Introduction

The maximum size of a MRDF area can be defined using the COVERED or VIRTUAL MUF startup option or when using the COVERED_ADD command.

However, it can be useful to know how much memory is actually used for each area.

Resolution

The Memory Resident Data Facility Summary Information (M R D F SUMMARY INFORMATION) report generated at MUF EOJ (or by the ALL_INFO_REPORT command) contains the requested info. 

The following query returns useful info too:

SELECT DBID, AREA_NAME, DATASPACE, MEMORY_SIZE,
       BLOCKS_MAXIMUM, BLOCKS_CURRENT          
FROM SYSADM.MUF_COVEREDVIRTUAL;   

Additional Information

See the Memory Resident Data Facility Summary Information report in the documentation for details.