Quantum DLT 8000 Manual descargar pdf (Pagina 274)

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SCSI Commands

5-130 Quantum DLT 8000 Tape System

MODE SENSE (6) / (10) Command (1Ah / 5Ah) (continued)

Table 5–59 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.

Perf Performance bit. Not supported.

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

reporting method specified by the contents of MRIE is selected.

When this bit = 1, 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.

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