Find logical units: Each possible logical unit number on the attached targets should be tested for experience using an INQUIRY command. Those found with a non-zero peripheral qualifier in the INQUIRY data should not be included in the list of available logical units. Each available logical unit should be added to the host configuration information, identifying the associated logical unit number, device type, manufacturer, and model.

Verify State: The verify state test should be made to clear any outstanding errors, capture and clear UNIT ATTENTION conditions, and determine the state of readiness of the available logical units. The logical units should be identified as ready, not ready, or failing by this test.

Device Initialization: The device undergoes a device-dependent initialization process. This process is described for direct-access devices, sequential-access devices, and processor devices. Other device initialization procedures are not described since they tend to be similar to one of these initialization procedures. The initialization process takes into account the state of the device as identified during the verify state test.

Device On-line: The successful completion of the device initialization process allows the device-table entry to be fully enabled. The device joins the system with all key parameters identified and initialized. The device state is known and may be presented to the system operator.

Verify State Test

The verify state test uses the following steps to identify any outstanding errors, clear any UNIT ATTENTION conditions, and determine the readiness of the devices. The verify state test should be executed against each available logical unit.

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M3099GX/GH OEM Manual