Increasing Db2 Messages Display from option 4 of Sysview for Db2 Main Menu

Products

• SYSVIEW Performance Management Option for DB2 for z/OS

Issue/Introduction

When entering Sysview Performance Management Option for Db2 for z/OS (IDB2) option 4-Messages,
only 30 minutes worth of data is available. Is there a way to increase this retention? 

Resolution

The number of ILOGS PAGES controls the size of virtual file used to store the Db2 messages, commands, and logged exceptions. 

For every 180 pages specified here, 1 CYL of 3390 DASD should be allocated for the ILOG VSAM datasets in source member GSSILOG. 

Basically the ILOG datasets need to be redefined to hold more pages. 
Default is 200. 

See (Optional) Enable Message Logging and Configure GSS section of r20 of Sysview for Db2 Guide additional info.