I truncated the dta_DebugTrace table, it had 6106000 rows but there was no significant increase in disk space. the purge script fails due to shortage of space for tempdb.
Is there a way to purge messages in MsgboxDb as it is taking up much more space (9 Gb)
My understanding is that once the messages are copied into DTAdb they are purged from msgboxdb so msgboxdb should not be larger than dtadb.