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SCSI Commands

5-88 Quantum DLT 7000 Tape System

MODE SELECT (6) / (10) Command (15h) / (55h) (continued)

Table 5–46 TapeAlert Page Format Descriptor - Field Descriptions

Field Name Description

PS Parameters Savable. For MODE SELECT, this bit must be 0.

Additional Page

Length

This field indicates the number bytes in the page. However, the value does not

include bytes 0 and 1. The length is returned in MODE SENSE commands and

must subsequently be set to the same value when performing MODE SELECT. If

the page length does not match that expected by the drive, a CHECK CONDITION

status is returned, sense key set to ILLEGAL REQUEST.

The drive returns a CHECK CONDITION status with sense key set to ILLEGAL

REQUEST if it receives an unsupported Page Code or a Page field with values not

supported or changeable. In such cases, no parameters are changed as a result

of the command.

Pert Performance bit. Not supported, always = 0.

DExcpt Disable Information Exception Operations. When this bit = 0, the reporting

method specified by the contents of MRIE is selected. When this bit = 1 (its

default setting), all information exception operations are disabled and the

contents of the MRIE field are ignored. When in this mode, the TapeAlert Log

page is polled by the software. To enable CHECK CONDITION mode, DExcpt

should = 0.

Test Test Bit. Not supported.

LogErr Error Log. Not supported

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Quantum DLT 7000 Manual Página 192