<snip>Is the meaning of these 4 bytes available in another message or in a publicly available DSECT?</snip> The blunt answer to the question is "no". This is information for use by IBM diagnosticians.As with other similar "diag" fields, it is not something that IBM wants there to be any customer dependencies on the contents/format let alone any responsibility to update documentation if the contents/format change for any reason. I hope that the reason for the question was curiosity, not a functional need. Peter Relson
---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
