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Explicit method

If you specify ICACC(1), explicitly identify the image copy block size by coding the following on the output image copy data set DD statement in the JCL:

   DCB=BLKSIZE=nnn

You must select a block size that is a multiple of the logical record length for the image copy data set. This is equal to the database block size (if OSAM) or control interval size (if VSAM) of the data set group or area being processed plus eight bytes.

Warning

Note

For KSDS and HISAM overflow data sets, the image copy logical record length is calculated using the logical record length of the database data set group instead of the control interval size or block size.

The minimum logical record length is 64 bytes.

Related topic

Image-copy-block-size-settings

 

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