SCSI Commands

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

Table 5–45

Medium Partition Page 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.

Maximum Additional

Not supported. Must be 0.

Partitions

 

Additional Partitions

Must be 0. This field specifies the number of additional partitions to be

Defined

defined for the tape based on the settings of the SDP and IDP bits. The

 

maximum allowed is the value returned in the Maximum Additional

 

Partitions field. Only one partition is supported, therefore the value of

 

the field must be 0.

FDP

Fixed Data Partitions. Must be 0.

SDP

Select Data Partitions. Must be 0.

IDP

Initiator Defined Partitions. Must be 0.

PSUM

Partition Size Unit of Measure. Must be 0.

Medium Format

This field is valid for MODE SENSE only, and is set to 01h, indicating

Recognition

that Medium Format Recognition is supported.

 

 

5-86

Quantum DLT 7000 Tape System

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Image 190
Quantum Instruments DLT 7000 manual Medium Partition Page Descriptor Field Descriptions, Fdp, Sdp, Idp, Psum

DLT 7000 specifications

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