Answer / shailendra

i donn't think if we compress the pds, its mean we are
increasing the size of pds. our first requirment is to
increase the pds size... and it is not possible. i think
you can you can apply the below logic. first create another
pds with same properties with existing and increase the
value of primary, scondary and directory block value in
space parameter. and just copy all the member in newly
created pds, delete the previous and rename the new pds
with old name.

Answer / anila

Compress the dataset using Z in the left side while opening
the dataset

Answer / sanjay sahoo

Yeah what the above answers told by my friends are right or
you can do it in this way also go to ISPF 3.1 and Give C and
mention the data set name.

Answer / vipin

There is way to increase the PDS directory block without
taking the back-up. If you are using file manager, Go to
utilities and then you can get the option for PDS
allocation. This way you can increase the PDS directory
block and it also creates the back-up of the old attributes
dataset

Answer / david

In the old days, (those of us around 70 years old can say
that) there was some "freeware" TSO command called PDS that
was handy for a number of good things. It could increase
the size of a PDS directory without reallocation, but the
PDS dataset needed to have sufficient space to physically
shift members to allow contiguous space for the directory
inside the PDS dataset. This command also had good ISPF
capability (i.e. PDS 'pds.name' ISP), however, as I
remember, the "increase directory" command was TSO only.
Now option 3.4 covers much of that PDS command ISPF
capability.

Answer / sameer

you can use create rexx utility to create new pds, copy
members to it, rename it and then delete the old one

Answer / samsharan

Go to start--> 3-->1-->C

Answer / phani

The exact answer for the ans#3 is
Go to start--> 3-->1-->C.(No need to go to 3.4)

Answer / s

1)Compress the dataset.
2)Using space=(1,1,1(db),rlse) u can change the pds
size ,where db is directory blocks ,increase it and alter
the existing one

Answer / prerna

You can compress the PDS on TSO with option START 3.4 -> 3
-> 1 -> C

For rewrite, why is it mandatory that file needs to be opened?

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