Well, there really isn't anything that I know of that is like sp_depends for DB2 z/OS Version 7.2. Hopefully V8 will alot more features...but for Now you have to interogate the catalog. So this is how you do it....
SELECT DISTINCT NAME,DNAME,BNAME
FROM SYSIBM.SYSPACKDEP D
INNER JOIN SYSIBM.SYSPACKSTMT S
ON D.DCOLLID = S.COLLID AND D.DNAME = S.NAME
AND D.DCONTOKEN = S.CONTOKEN
WHERE BQUALIFIER = 'AXHRSPDA'
AND BNAME IN('POSITION_TREE')
ORDER BY NAME,DNAME,BNAME
And this new editor for posting is pretty neat...lots of features...like background color...and for anyone not familiar with the mainframe...that's what I get to look at all day..until I get another SQL Server project