Difference between manual and automatic execution of unload history unload process

Products

• 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

Issue/Introduction

what is the difference between executing the unload process manually and  unloading it automatically by started task based on the percent file usage? Both executions save the last unload date the same way?

Environment

Release:
Component: CIDB

Resolution

The manual execution provides a means to execute either online or offline. By that, I mean that the data collector can be either up or down. But, during an offline execution the whole file is generally unloaded. We don't save the last unloaded record. (The batch job tells the data collector to do this, so in the offline mode when the data collector is down, the last record unloaded won't be saved.)