versions in GDG

sivatechdrive · Posted: Tue Mar 14, 2006 8:25 pm

Hi Friends

How to keep all the versions of the GDG

I created GDG member using JCl
EM9090.GDGLIB.TEST(+1)
it created Generation data set by name EM9090.GDGLIB.TEST.G0001V00

i want to create a new version like below
EM9090.GDGLIB.TEST.G0001V01
so in the jcl i gave EM9090.GDGLIB.TEST.G0001V01,disp=new

It Created generation dataset by name EM9090.GDGLIB.TEST.G0001V01
but deleted EM9090.GDGLIB.TEST.G0001V00

How to keep this EM9090.GDGLIB.TEST.G0001V00 version

Regards
Siva

superk · Posted: Tue Mar 14, 2006 8:34 pm

You can't. You are only allowed one version per generation. Doing otherwise would defeat the whole concept of generation data groups.

Normally, a new version is created as a replacement for the old version, usually as the result of some fix to the data.

The only suggestion I have is to make a copy of the original version first, to either another GDG group, another generation within the same group, or to a plain sequential dataset, then do your update to the version.

martin9 · Posted: Tue Mar 14, 2006 8:41 pm

hy superk,

is very right,
of course you can refer to a gdg dataset by
using its full name. but if you want to create one,
then work only relativ, i.e. dataset(+1)

if you want to keep any version,
define your gdg limit as big as possible
(if it makes sense),
but better take superk's solution for that,
make a copy.

martin9