Anybody has tried the commands for reading original Sec Units on db2010 ?

I need the proper command (addss, lenght, etc) for rreading the secunits off the GDFS, I have one z530 I think it has corrupted GDFS I need to fix it, I was pllaning to ead sec units, write a working GDFS and restore sec units, just like I have done for rrepairing GDFS on db2020

any suggestion? it is urgent !