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The Compressed Dataset Access Method (CDAM) must operate 24 hours a day, because CDAM is used both by the Control‑D monitor and by jobs within the system to read, write and view compressed reports. For information about how a job can invoke the Compressed Dataset Access Method, see the CDAM chapter in the Control-D and Control-V User Guide.
Usually, CDAM is automatically initialized as part of the IPL process. To activate the Compressed Dataset Access Method manually, issue operator command
S IOASINIT,OPTIONS=D |
If CDAM is successfully initialized, the following operator message is displayed on the operator console:
CTM227I IOA SUBSYSTEM "subsystem‑name" INITIALIZATION OF Control‑D FUNCTIONS COMPLETED |
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