For further reference on IBM System Storage DS4000
The following IBM documents may be helpful:
IBM System Storage DS4000 Series and Storage Manager
IBM System Storage DS Storage Manager Version 10.30: Copy Services User's Guide
http://www.filibeto.org/unix/aix/lib/hardware/ds4800/copy-services-ug-gc53113600.pdf
IBM System Storage DS4000 Storage Manager Version 9 Installation and Support Guide
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