Quantum 1200 Series DAT Autochanger Guía de usuario descargar pdf (Pagina 135)

SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

81-81200-02 REV A01 January 2005 4-93

DExcpt Disable Information Exception Operations. When set to 0, the reporting

method specified by the contents of the MRIE field is selected. When set

to 1, all information exception conditions are disabled regardless of the

contents of the MRIE field. When in this mode, the software polls the

TapeAlert Log page. To enable CHECK CONDITION mode, set DExcpt

to 0. Default setting is 1.

Test Generates false TapeAlert conditions to test the response to failure

conditions. See the Report Count / Test Flag Number description for more

information. If both Test and DExcpt are set to 1, the drive returns CHECK

CONDITION status, Sense Key ILLEGAL REQUEST, and Additional

Sense Code set to INVALID FIELD IN PARAMETER LIST.

LogErr Error Log. Not supported. Must be set to 0.

MRIE Method for Reporting Informational Exceptions. The drive uses the

contents of this field to report information about exception conditions. The

available methods are:

Value Metho d

00h No reporting of Informational Exception Conditions. The

drive does not report information exception conditions.

03h Conditionally Generate Recovered Error. The drive reports

informational exception conditions, if such reports of

recovered errors are allowed, by returning CHECK

CONDITION status on the next SCSI command (except

INQUIRY and REQUEST SENSE commands) following

detection of the condition. The drive sets the Sense Key to

RECOVERED ERROR with an Additional Sense Code of

5Dh / 00h (TapeAlert Event). The SCSI command with the

CHECK CONDITION status completes without error

before the report of any exception condition and does not

need to be repeated.

04h Unconditionally Generate Recovered Error. The drive

reports informational exception conditions by returning

CHECK CONDITION status on the next SCSI command

(except INQUIRY and REQUEST SENSE commands)

following detection of the condition. The drive sets the

Sense Key to RECOVERED ERROR with an Additional

Sense Code of 5Dh / 00h (TapeAlert Event). The SCSI

command with the CHECK CONDITION status completes

without error before the report of any exception condition

and does not need to be repeated.

Table 4-55. TapeAlert MODE SELECT Page — Field Descriptions (Continued)

Field Name Description

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 293 294

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