IBM Mainframe Forum

Hello,

i 'd like to avoid whed if ill ten Huge file (110 000 Cylinders) each one.
They all belon to the same Storage Group.

I use ten job (each job) fill one dataset.

They are guarantee space. It's the resason i'd like to fill then by using only the primary space to get one extent by volume

In the storage group, we have 59 volume. So ti fill each dataset, i need 1870 cylinders in primary space :



the dataclass is



My question is :
To avoid extent, may i have to run job one after one : I wait the end of the fisrt job to run the seconde, etc...
But this solution takes time.

If i run the fisrt job, and i wait 5 minutes (for example) to be sure the jobs the primary space in the 59 volumes)
And five minutes later, i run the second, etc...

I prefer this solution, because it doesn't take so much time (i don't have to wait then end of each job).
But with this solution, i'm not sure to avoid more than one extent in each volume.

Thank's for help and sorry my english.

Your english skills are the lesser of Your problems
the worse thing is the sloppy way You posted Your question

i 'd like to avoid whed if ill ten Huge file (110 000 Cylinders) each one.

what in &heaven does it mean ???

help people who spend their time helping You !

Hello, sorry.
I'd like to say :

i 'd like to avoid extent when i fill ten Huge files (110 000 Cylinders) each one :

It has been a while since I looked at it, but perhaps the CONTIG operand of the SPACE parameter helps?

samb01 wrote:...

Select all

//HUGE01    DD DSN=HUGE.DATA.SET01,DISP=(,CATLG,DELETE),
//         DATACLAS=DCKOMP1,
//         SPACE=((CYL,1870),RLSE),VOL=(,,,59),
//         DCB=(RECFM=VB,LRECL=27994,BLKSIZE=27998) 

There are a few issues with the JCL too.

• You specify a primary allocation but no secondary allocation. What this means is you fill the primary allocation, and then you ABEND because there is no secondary allocation AND it will not attempt to go to an additional volume since there is no secondary allocation.
• You claim each data set NOT file goes to 110,000 cylinders, but, again, your primary (and since there is no secondary) is slightly less than 110,000 - well, it does not compute.
• There are syntax issues with your SPACE parameter.
• To get more than 4369 cylinders on one volume you have to specify DSNTYPE=LARGE, unless that is covered by the DCKOMP1 data class.
• I'm too lazy to do the arithmetic, but I'm pretty sure you cannot get 110,000 cylinders even in the extended space of a 3390-27 type device. In other words, there is no way you're going to get 110,000 cylinders in one extent on one volume.