Allocating space while creating GDG base

ranjithmainframe · New User Joined: 21 Jan 2008 Posts: 28 Location: chennai

Hi all,

Could you please let me know if it is possible to
specify/allocate the space while creating the GDG base itself.
SO that we will not get any space abend in case of getting a huge file to a new generation GDG dataset in a ftp process like as follows,
(for example)
ftp 11111.111.11
get textfile.txt APG.XX.GDG(+1)

Thanks,
Ranjith

superk

No, of course not.

But, why on earth are you configuring your FTP like that? Why don't you define a DD statement in the JCL for the new GDG, with all of the necessary storage parameters, i.e.:

//FTPFILE DD DSN=APG.XX.GDG(+1),DISP=(,CATLG,DELETE),UNIT=...,SPACE=...

and then specify your get statement:

get textfile.txt //DD:FTPFILE

as outlined here in the section 4.2.4 ddname support in the z/OS V1R9.0 Comm Svr: IP User's Guide and Commands guide.

Robert Sample · Posted: Sat Oct 11, 2008 1:18 am Post subject:

As the manual says, creating a GDG base creates a catalog entry. Since you're not defining any datasets, there's no space parameter you could define with the GDG base. Use Kevin's approach to minimize space abends but there's no way to completely eliminate the possibility of space abends during the FTP -- the other end could have a file that is simply larger than your storage pool.

ranjithmainframe · New User Joined: 21 Jan 2008 Posts: 28 Location: chennai

There is a way on earth..

I might not be explained my problem in detail...

I have too many files in my ftp like as follows which would be difficult to
define each empty file seperately,

expat · Posted: Sat Oct 11, 2008 4:09 pm Post subject:

Go chat with your storage people - use of the SMS DATACLAS ACS and construct can do that easy peasy.

However, having a JCL reference as to where the file is created does make problem determination a little easier. Maybe you could include something in your naming standards to alert anyone that the file is created by jobname/stepname/ftp.

ranjithmainframe · New User Joined: 21 Jan 2008 Posts: 28 Location: chennai

oH!!.. you are right expat.. Thanks for your Information.

Thanks,
Ranjith