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simulatenously accessing dataset on TAPE

 
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puneetvirmani143

New User


Joined: 24 Jul 2007
Posts: 55
Location: noida

PostPosted: Tue Oct 08, 2013 8:29 am    Post subject: simulatenously accessing dataset on TAPE
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Hi,

We have written a SORT using JOINKEY taking same file as input with DSNAMEs as DD1 and DD2 respectively. Using JOINKEY we are splitting the bigger file into several smaller files based on certain specific set of codes whether last 2 bytes contains A1, A2 or other etc.

Earlier this dataset was on DASD, so things were runing smooth.

Due to huge size of file (approx 20 million records) and LRECL=4546, it has been decided to have this file created on TAPE in the Step which runs just before the SORT using JOINKEY with following parameters.

EXPDT=1999/000,UNIT=VTS,VOL=(,RETAIN,,255)

However, the SORT job using JOINKEY is failing now stating error as "TAPE already mounted" may be because it is trying to read the TAPE single dataset under different DDnames DD1 and DD2 for using under JOINKEY

Is there any way to eradicate this issue ?

Regards
Puneet
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gcicchet

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Joined: 28 Jul 2006
Posts: 1703
Location: Australia

PostPosted: Tue Oct 08, 2013 10:12 am    Post subject:
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Hi,

create another copy of the file.


Gerry
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