Dell PowerVault ML6000 Dell PowerVault ML6000 SCSI Reference Guide - Page 87
Send Diagnostic - 1Dh, What the Library Does With This Command, Command Usage
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Send Diagnostic - 1Dh What the Library Does With This Command If the Self Test option is requested, the library executes a pre-defined diagnostic. Command Usage This command can be used to verify the operational status of the library and its components. Send Diagnostic CDB Format The SEND DIAGNOSTIC CDB format is shown in the following table. Table 73 SEND DIAGNOSTIC CDB format Byte Bit 7 6 5 4 3 2 1 0 0 Op Code (1Dh) 1 Logical Unit Number PF Rsvd SelfTest DevOfl UnitOfl 2 Reserved 3 Parameter List Length 4 5 Control Page Format (PF) - Diagnostic pages are not supported and this field should be set to 0. SelfTest - When set to 1 the library will perform a predefined self-test. The SEND DIAGNOSTIC command will not return until this completes, and command completion status will indicate the results of this test. When set to 0, the self-test is not performed. Device Offline (DevOfl) - This field is not supported and should be set to 0. Unit Offline (UnitOfl) - This field is not supported and should be set to 0. Parameter List Length - This field is not supported and should be set to 0. PowerVault ML6000 SCSI Reference Guide 77