Tape volume insufficient problem

krishna_Murty · New User Joined: 17 Sep 2006 Posts: 24

have a output file which has about 40000000 Records. I gave the output to write to TAPE

//OUTPUT1 DD DSN=JIPS.UTYU.MNS135NS.MNS13502.OUT,
// UNIT=CART,DISP=(NEW,CATLG),VOL=(,RETAIN),
// RECFM=VB,LRECL=7498,BLKSIZE=32760,BUFNO=45

This is giving space abend. So how to increase the space still. Because if we are writing to DASD , we can increase the drives from UNTI=PRODDA to UNIT=(PRODDA,10) to use 10 drives. But i have a doubt on how to increase the tape number.
Please help me in this.

expat · Posted: Mon Aug 06, 2007 5:53 pm

Could you please show the output from your space abend when writing to tape ?

Or do you mean that the system default for the number of tape volumes has been exceeded and you have received an abend ?

Try this
UNIT=(CART,1),VOL=(,,,99)

Why you would want to specify ,RETAIN for a multi volume output is a bit strange to me.

dick scherrer · Posted: Mon Aug 06, 2007 9:32 pm

'Cause we always do it that way. . .

As Expat mentions, you don't want to use 99 UNITs, but you will want more VOLumes.

How long are the records being written to this "cart"?

What model of cart are you using (different types of carts have different capacity)?

You might ask your storage management people, they may have a suggestion about a different UNIT specification.

krishna_Murty · New User Joined: 17 Sep 2006 Posts: 24

I am so sorry for dealy, i got this working if i code
UNIT=CART,DISP=(NEW,CATLG),VOL=(,RETAIN,,10),

here previously i had VOL=(,RETAIN), so once when i got the space abend
i used VOL=(,RETAIN,,10),

It worked for me.

I feel its bcoz we are using 10 Volumes of tape.
Am i right?,
if anyone can explain more i would be so much glad for the information.

Regards
KRISHNA

dick scherrer · Posted: Mon Aug 20, 2007 6:28 pm

Hello,

Using "10" and having the job run successful means that your data fit on 10 or less volumes. To know the number of volumes actually used, you can look at your tape management information or the system catalog. If you have the output from the job that created the output, it will show how many volumes were used.

If you actually used 8 or 9 volumes, i'd suggest you change your jcl to 15 and periodically check how many actual volumes were used.

You might also talk with your tape management and see if your system uses (and your dataset qualifies to use) a higher volume type of cart.