The steps to use CCKDDU64 are fairly straightforward.
1) Once-off build/preparation of the CCKDDU64 load module.
2) Execute CCKDDU64 (batch job) to dump a volume.
3) Binary FTP the resulting output file (which is in CCKD64 format) to your local workstation.
4) Optional, but highly recommended, use CCKDCOMP64 to optimise the CCKD64 file before first use.
5) Attach it to your Hercules system and you're good to go.
1. Once off build
The once off build can be quite daunting, but thankfully there is a prepared package in xmi format here:-
It has, amongst other members, a Load Library containing a compiled CCKDDU64 (X$CCKDL) and JCL to execute it (E$DUMP).
Alternately, you can follow the steps in $$README to build the load module(s) from source.
The default CCKDDU64 outputs a 64-bit Compressed CKD with zlib compression.
Hope this helps
Andrew
