zos5415 New User Joined: 29 Aug 2008 Posts: 18 Location: China
when i use the follow jcl to create a GDG file.
//STP0100 EXEC PGM=IEFBR14,
//DD1 DD DSN=AATP.AAIP.CLEP64.PS(+1),
but after the GDG generated, the Data class is **None**.
Data Set Name . . . . : AATP.AAIP.CLEP64.PS.G0001V00
General Data Current Allocation
Management class . . : THREWEEK Allocated cylinders : 1
Storage class . . . : DEVLPMNT Allocated extents . : 1
Volume serial . . . : PAY112
Device type . . . . : 3390
Data class . . . . . : **None** Current Utilization
Organization . . . : PS Used cylinders . . : 1
Record format . . . : VB Used extents . . . : 1
Record length . . . : 4140
Block size . . . . : 27998
1st extent cylinders: 1
Secondary cylinders : 5
Data set name type : SMS Compressible : NO
Creation date . . . : 2010/04/25 Referenced date . . : 2010/04/26
Expiration date . . : ***None***
it seems the data set can be used without any error. but i want to know something hidden that cause the things happen.
can some guys give me a brief introducation ?
dick scherrer Site Director Joined: 23 Nov 2006 Posts: 19270 Location: Inside the Matrix
Suggest you talk with your storage management people for an explanation of how things are set up in your environment. There are many ways to define/enforce these rules and they are completely site-specific.
expat Global Moderator Joined: 14 Mar 2007 Posts: 8652 Location: Back in jolly old England
If your storage environment is correctly set up, there should always be a DATACLAS allocated to a GDS. This removes the need for all of this Dummy / Model DSCB rubbish.
As suggested earlier, go speak to the storage people.
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