Lizette;

There's nothing "magical" or special about an SMF dump (output) dataset such 
that you have to go to such extreme lengths to create one; its just a simple 
physical sequential dataset with a 32K record length and either V or VBS record 
format -- you can just create it using an IEFBR14 job with a DD that specifies 
the proper characteristics.

Quick follow-on ...... if you are going to be running a "future" job to 'MOD' 
data onto the end of this dataset you COULD even SKIP the above create step and 
just let the "MOD" operation create the dataet for you (that is, DISP=MOD ... 
means add to the end of the existing dataset -or- create a NEW one and put the 
data there).   Be really careful with the DISP=MOD that you don't end up with a 
partial record at the "end" of the dataset and then when additional data is 
added to the dataset that partial record causes the follow-on data becomes 
in-accessible resulting in future attempts to read the dataset to fail.  There 
are 'manual' steps and I think there are tool available that can be used to 
correct the issue in the event that this happens.

One other thing ...... be really careful about doing the "IFASMFDP with output 
TYPEs" because IFASMFDP will NOT generate an "empty" / null dataset but rather 
one that has at a minimum the 'first' and 'last' records (which are 
"throw-aways) BUT if you specify any other record types (like you noted in your 
original message) then you could end up with DUPLICATE records

Bill .....
IBM z/OS System Software Development and Service
(past "SMF" Component owner)

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