Hi Antony,
ST22 to view all the abap dumps that have occured in the system on a given day.
As part of daily monitoring, it is the responsibility of the basis administrator to analyse the dumps and take necessary actions to avoid issues.
Some of the examples of abap dumps are timeout issue, database space issue, spool overflow issue, MESSAGE_TYPE_X etc
Try to identify the reasons for the dumps with the help of BASIS, few changes to system parameters will resolve your issue.
Hope it helps.
-- KRPK