SCSI Description

￿￿￿%*#0)'The CHANGE￿&'(+0+6+10DEFINITION￿%QOOCPFcommand￿￿￿￿shownJ￿in Table 5-9and Table 5-10set the SCSI compliance for disk drives with parallel SCSI interfaces to one of four different levels: SCSI-1, SCSI-1/CCS, SCSI-2 or SCSI-3.

CHANGE DEFINITION Command Descriptor Block-Data Format

 

 

 

 

 

 

 

 

 

 

 

 

Operation Code (40h)

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

2

 

 

 

Reserved

 

Save

 

 

 

 

 

 

 

 

 

3

Rsv’d

 

 

New Operating Definition

 

 

 

 

(0, 1, 2, 3, or 4 are legal values for Parallel SCSI Disk Drives)

 

 

 

 

 

 

 

 

 

4 - 7

 

 

 

Reserved

 

 

 

 

 

 

 

 

8

 

 

Parameter Data Length

 

 

 

 

 

 

 

 

 

9

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

$Bit[VG

 

￿

￿CHANGE￿DEFINITION￿

-Field￿￿Descriptions

￿

￿

 

 

 

 

 

 

ParameterTable5-Data10Length

/WUV￿DG￿￿￿

 

 

 

 

 

 

Save Parameters. When this field is set to 1, the

 

 

 

(KGNFSave

new operating definition&GUETKRVKQPis saved in the drive's

 

 

 

 

non-volatile memory.

 

 

Table5-9

 

 

The values that can be supplied in the field are

 

 

listed below:

 

 

 

 

0

Current Definition

 

 

 

New Operating Definition

1

SCSI-1

 

 

 

 

 

 

 

2 SCSI-1/CCS (Common Command Set)

 

 

 

 

 

3

SCSI-2

 

 

 

 

 

 

 

4

SCSI-3

 

 

 

 

 

 

 

Length, in bytes, of the parameter data.

 

Maxtor Atlas 10K III

5-13

Page 77
Image 77
Maxtor 10K III manual Change Definition Command Descriptor Block-Data Format, SCSI-1, SCSI-2 SCSI-3