On Jan 7, 2008, at 4:09 PM, (IBM Mainframe Discussion List) wrote:

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Next came compatibility between a DASD volume created on DOS/360 and being able to access its data under OS/360. This is why OS/MVS/etc. had support for
split cylinder allocation.

Bill  Fairchild
Franklin, TN
Bill,

I do not remember the split parameter on JCL on(in) JCL from MFT 18.6 days but you say in was still there in MVS 2.0 are you sure it was there(or when it was dropped)?

Ed
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