Is there an equivalent to DCB's BUFNO subparm when dealing with VSAM?

I need to initialize (actually write real data into every record) several 
fairly 
large VSAM RRDS datasets; would like it to proceed a bit faster.

And I realize I don't know what to say.  I even actually tried with BUFNO=200, 
expecting no observable difference.  That was also the result .

Even if there is something that would not work on my OS390.210 system, I 
would still like to know about it.

     Larry M. Burch        lmburch [...@] cabq.gov    505-768-2948
        Information Technology Specialist    for
        City of Albuquerque
     Albuquerque  NM  USA  87102

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