The DSPSYS command retrieves information about the system and partition for the job that issues the command. That information is sent as a completion message to *PRV (the caller) and logged in the joblog. If the end-user running the DSPSYS command is on an IBM display or Command Entry, the message is normally visible in the "subfile message record" located at the bottom of the display.
===> DSPSYS COZ720 V7R1M0 DskUse:36.0266% CPU(1/3/4) RAM(7616) lparName:06-9999P
The following information is listed:
The DSPSYS command uses the QPML* service program which most shops have set to PUBAUT(*EXCLUDE).
To list only the System Name and IBM I version/release level, use the DSPVER command instead; it does not use the QPML* service program.
The command is part of the COZTOOLS product for IBM i available for public beta testing beginning May 1st, 2012 and becoming available for general use in early August.