rdisp/auto_vb_stop is a SAP Parameter attribute which is used to control DB errors will stop update task automatically information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
Automatic stopping of update task if database errors occur.
Following values are possible:
0 : No automatic stop
1 : Automatic stop
See SAP Parameter Documentation for full SAP documentation for this profile parameter.