Specifications

5 Control and Monitoring Session Examples
The following examples walk through a usage scenario and demonstrate the types of command and
monitor messages needed to operate the MCS-DR as well as the responses and error messages that
might be generated. It should be noted that the error conditions in the scenario are atypical, and
are included for the sake of demonstrating the interface. In the following examples, a single quote
is used to denote spaces appearing in arguments and responses. Subsystem ID is assumed to be
“MD1” in these examples.
The example starts by checking system status to which the MCS-DR responds that it is boot-
ing. MCS then requests initialization but MCS-DR discovers that internal storage is missing and
responds to that effect. MCS issues an UP command to bring storage online, and the MCS-DR is
able to comply and fix the problem. MCS then schedules a recording and checks to verify that the
recording was scheduled. Once the recording begins, the MCS checks the status of the operation.
Once the operation is complete, MCS requests that the MCS-DR copy a portion of the new recording
to an external storage device.
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