What happens when above the bar storage is unavailable?

Products

• RC Compare for DB2 for z/OS
• Bind Analyzer for DB2 for z/OS
• SQL-Ease for DB2 for z/OS
• SYSVIEW Performance Management Option for DB2 for z/OS
• Plan Analyzer for DB2 for z/OS
• Subsystem Analyzer for DB2 for z/OS
• Database Analyzer for DB2 for z/OS
• Fast Unload for DB2 for z/OS
• Fast Check for DB2 for z/OS
• Fast Index for DB2 for z/OS
• Rapid Reorg for DB2 for z/OS

Issue/Introduction

Question: 

If 'above the bar' storage is unavailable, because of a MEMLIMT setting, will the product use virtual storage below 2GB or will the product function or fail?

Answer: 

Insight requires a minimum of 2 Meg above the bar, and a maximum of 64 Meg, if you use the HIST-ACCT-DETAIL option. The collector will fail if this option is used and the storage above the bar is unavailable.

Environment

Release:
Component: CIDB