Compress Object command

Early this week I had asked about using the CHGPGM command to remove
observability and compress program sizes that all responders said to
forget about. One mentioned using the Compress Object CPROBJ command to
save on space usage and speed up backups. Is anyone using this command
on a regular basis to reduce the size of objects that can be compressed
that only get used infrequently like year-end processes? If you do run
it do you only compress your own objects or do you do a system wide
compress? 
 
I am considering running this CPROBJ OBJ(*ALLUSR/*ALL) OBJTYPE(*ALL)
DAYS(90) every week end when system use is low.  Or would CPROBJ
OBJ(*ALL/*ALL) OBJTYPE(*ALL) DAYS(90) be a better choice.
 
I did a test on our development library which has 2,915 objects. 2,901
were scanned by CPROBJ, 464 were able to be compressed and space usage
for the library went from 3,924,838,912 down to 3,833,350,656. Not a big
change.  But, of the 464 objects that were compressed space usage went
from 150,269,952 down to 58,781,696. Not bad. 
 
Mike Cunningham
CIO
Pennsylvania College of Technology
www.pct.edu
mcunning@xxxxxxx