all "show" commands are unsupported, undocumented, IBM debut commands

     you won't find anything anywhere on those.

     However...

Command Parameters      Action/Results
CKPT            Forces a check point to clear the archive redo log file.
FORCE   <?>     Don't know_must have a parameter
SHOW ARCHIVE    <node> <filespace>      Shows archived file info. (node:
from a
QUERY NODE) (filespace: from a QUERY FILESPACE <node>)
SHOW BFO        <0> <bf#>       Bitfile info (tape data's block location
junk,
                                also see SHOW INVO)
SHOW CONFIG             SHOW TIME
                QUERY STATUS
                QUERY DOMAIN
                QUERY NODE
                QUERY OPTION
                QUERY PROCESS
                QUERY SESSION
                QUERY DB F=D
                QUERY DBVOLUME * F=D
                QUERY LOG F=D
                QUERY LOGVOLUME * F=D
                QUERY DEVCLAS * F=D
                QUERY STGPOOL * F=D
                QUERY VOLUME
                QUERY MGMTCLAS
                QUERY COPYGROUP * * * STANDARD TYPE=BACKUP *
                QUERY COPYGROUP * * * STANDARD TYPE=ARCHIVE *
                QUERY SCHEDULE
                QUERY ASSOCIATION
                SHOW BUFVARS (Database buffer pool global variables)
                SHOW CSVARS (not sure what this is) *
                SHOW DBVARS (Database service global variables)
                SHOW LVM (LVM fixed storage area capacities, DB & LOG volume
                          usage, Disk table entries, Copy table status, DB &
LOG
                          logical partition info & LVM checkpoint record
                          contents
                SHOW LVMCOPYTABLE (Copy table status)
                SHOW LVMVOLS (DB volume usage, and LOG volume usage)
                SHOW SSVARS  (Storage service global variables)
                SHOW TMVARS (Transaction manager global variables)
                SHOW TXNT  (Transaction hash table contents)
                SHOW LOCKS  (Lock hash table contents)
SHOW CSVars             Shows client schedule variables
SHOW DBTXN              DB transaction stats
SHOW DBTXNT             DB transaction table
SHOW DBVARS             Database Service Global Variables
SHOW DEADLOCK           Shows any deadlocks, if present.
SHOW INVO       <?><?> (0&invo#)        Associated with SHOW BFO
SHOW LIBR               Shows all libraries defined to adsm.
SHOW LOCKS              Shows current locks against the data base.
SHOW LOG                Info on the Log
SHOW LOGSEG             Log segment table
SHOW LOGV               LOG global variables
SHOW MEM                Shows ADSM memory consumption statistics.
SHOW NODE  <homeAddr> <hex|>   Shows info. located at Page Address.
                               (homeaddr: from a SHOW OBJ).
SHOW OBJ                This will generate a list of objects in the
database.
                          (used in conjunction with SHOW NODE).
SHOW SESSION            Info on all active sessions
SHOW SPACE      <? ?>
SHOW THREADS            Thread info
SHOW TIME               Shows the current ADSM server time.
SHOW TREE       <name>  Shows tree info. (name: as found under Name-> <- in
the
                        $Object_Directory$)
SHOW TXNT               Transaction hash table contents
SHOW VERSION    <node> <filespace>   Shows filespace, path, name, mgmnt
class, &
                        status info (node: from a QUERY NODE)
                        (filespace: from a QUERY FILESPACE <node>)
SHOW VOLUMEUSAGE        <nodename>   Shows ADSM volumes in use by a given
node.