Sequential TAPE dataset



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Sequential TAPE dataset

Postby naveenkumar sudha » Tue Dec 01, 2009 5:55 pm

I have created a tape sequential data set (i.e. UNIT=TAPE).I tried to edit/view using start 3.4 option in TSO and i was not able to open it at all.Please let me know how can i view/edit a tape data set.

Thanks,
naveen S
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Re: Sequential TAPE dataset

 

Re: Sequential TAPE dataset

Postby MrSpock » Tue Dec 01, 2009 6:58 pm

You can't unless your TSO ID has been granted tape mount authority (which is highly unlikely).
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Re: Sequential TAPE dataset

Postby naveenkumar sudha » Tue Dec 01, 2009 10:53 pm

Ok thanks. Does it mean there is no way to access tape data set unless i have mounting authority?


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Re: Sequential TAPE dataset

Postby Bill Dennis » Wed Dec 02, 2009 3:17 am

You can dump it back to disk and browse there.
Regards,

Bill Dennis

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Re: Sequential TAPE dataset

Postby dick scherrer » Wed Dec 02, 2009 7:47 am

Hello,

Tape is meant to be used in batch processes, not online editing. . .

Most organizations will not allow developers to access tape datasets in their tso/ispf sessions.

If you do dump data to dasd to use intso, suggest you only dump a few records so that the volume will be managable.
Hope this helps,
d.sch.
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Re: Sequential TAPE dataset

Postby naveenkumar sudha » Mon Dec 07, 2009 11:15 am

Thanks. I am not sure how to dump back to dasd.Could you please let me know how can i dump data to dasd?
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Re: Sequential TAPE dataset

Postby expat » Mon Dec 07, 2009 5:08 pm

Rather depends on how the tape was created really.
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Re: Sequential TAPE dataset

Postby dick scherrer » Tue Dec 08, 2009 1:25 am

Hello,

What is the recfm for the file? If you post the jcl that created the file, that may help. . .

Your sort product may be the tool you want to use - as Expat mentinoed, this depends on how the tape was created.
Hope this helps,
d.sch.
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Re: Sequential TAPE dataset

Postby naveenkumar sudha » Thu Dec 10, 2009 5:45 pm

The following is the statement used to create a tape data set.

//GL1BIGW DD DSN=THHH.OSU.NAVEEN.OUTPUT,
// DISP=(NEW,CATLG,DELETE),UNIT=TAPE,
// DCB=(RECFM=FB,LRECL=1200),
// SPACE=(TRK,(2,3),RLSE)
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Re: Sequential TAPE dataset

Postby dick scherrer » Fri Dec 11, 2009 3:30 am

Hello,

How much data is on the tape? What pgm= was used to create the tape?

You can use your sort product to copy some of the data to dasd. If there is a high volume of data on the tape, you may not be able to copy all of it to dasd. With the sort product, you can select some of the data rather than copying all of it.
Hope this helps,
d.sch.
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