Maxtor 10K III manual Enable Modify Data Pointer, Scsi ID assigned is used

Models: 10K III

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SCSI Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(KGNF

0

 

&GUETKRVKQP

EMDP

Enable MODIFY DATA POINTER.

Fairness

111b

Indicates whether or not the target0QVshould￿UWRRQTVGFuse fair￿D[or￿VJGunfair￿FTKXG(e￿.g., prior-

Arbitration

 

ity) arbitration when beginning the interconnect tenancy.

 

 

Value

Description

 

 

 

000b

Disables the fairness algorithm. A fixed priority scheme based on the

 

 

 

SCSI ID assigned is used.

 

 

 

Non-Zero

Any non-zero value enables the fairness algorithm (SCSI SPI-2 ANSI

 

 

 

standard, Appendix B).

 

 

 

 

Disconnect Immediate. When set to a 1, to reduce on-bus time, the

 

 

 

drive is forced to disconnect from the SCSI Bus after a SCSI Command

DImm

0

is received. Disconnect Immediate works only when a typical, error-free

 

 

 

command is received. Disconnect Immediate does not apply in excep-

 

 

 

tion conditions (for example, SDTR received, error, etc.).

 

 

 

 

DTDC

Data Transfer Disconnect Control. This field of three bits defines further restrictions

 

 

when a disconnect is permitted. These are as follows:

 

 

 

 

 

 

 

Value

Description

 

 

 

 

 

 

 

000b

Data transfer disconnect control is not used. Disconnect is controlled

 

 

by other fields in this page.

 

 

 

 

 

 

 

 

 

 

 

&GHCWNV￿

A target will not attempt to disconnect once the data transfer of a com-

 

 

mand has started until all data of the command has been transferred.

 

 

001b

The connect time limit and bus inactivity limit are ignored during the

 

 

8CNWG

 

 

 

transfer.

 

 

 

 

 

 

 

 

010b

Reserved

 

 

 

 

 

 

 

 

A target will not attempt to disconnect once the data transfer of a com-

 

 

011b

mand has started, until the command is complete. The connect time

 

 

 

limit and bus inactivity limit are ignored once the transfer has started.

 

 

 

 

First Burst

 

This field indicates the maximum amount of data that a target may

0

transfer for a command during the same interconnect in which it re-

Size

 

ceives the command.

 

 

 

 

 

 

 

 

 

 

Fully supported and temporary fields are underlined. Unsupport-

Note:ed fields are not underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command, since the page is savable.

Maxtor Atlas 10K III

5-51

Page 115
Image 115
Maxtor 10K III manual Enable Modify Data Pointer, Ity arbitration when beginning the interconnect tenancy