Allocate each CA MIM control file on a cylinder boundary. We recommend that you allocate ten cylinders. The cylinders must be contiguous. After CA MIM is running, you can check how much allocated space is actually in use by issuing the DISPLAY IO command.
The default block size for a control file is 6144, but CA MIM may adjust this upward, depending on the device type and size of the file. The smallest size is 4096, and the maximum size is 32760, subject to the device-dependent maximum. If, during an initialization, you receive message MIM0025E indicating that a larger block size is required, you may specify a larger block size or you can reduce the amount of space that is allocated for the control file.
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