My command was (after deleting the output data set):
_UNIX03=NO cp -B -P'SPACE=(10000,(0,300)),BLKSIZE=0' /dev/fd/0
//TEMP.CBT854.ZIP
ISPF DSLIST Information tells me:
Data Set Information
Data Set Name . . . . : user.TEMP.CBT854.ZIP
General Data Current Allocation
Management class . . : **None** Allocated blocks . : 240
Storage class . . . : **None** Allocated extents . : 2
Volume serial . . . : 000000
Device type . . . . : 3390
Data class . . . . . : **None**
Organization . . . : PS Current Utilization
Record format . . . : VB Used blocks . . . . : 211
Record length . . . : 1028 Used extents . . . : 2
Block size . . . . : 27998
1st extent blocks . : 120
Secondary blocks . : 300 Dates
Data set name type : Creation date . . . : 2014/08/29
SMS Compressible. . : NO Referenced date . . : 2014/08/29
Expiration date . . : ***None***
OK. I understand the "27998". That's SDB doing what it should.
Where does the "120" come from? Where does the "240" come from? How
is the "10000" I coded reflected in the Info display? Did the C RTL
second guess me? Is this the 3390-pretending-to-be-a-3380? Does Info
show that if so? Are the Primary, Secondary, Allocated, and Used
in units of 10000 or 27998 or other? How can I tell?
I can never get my head around this stuff.
-- gil
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