Field

Default

Description

Value

 

 

 

 

 

EMDP

0

Enable MODIFY DATA POINTER. Not supported by the drive.

 

 

 

 

Fairness

111b

Indicates whether or not the target should use fair or unfair (e.g., priority) arbitra-

Arbitration

(Def)

tion when beginning the interconnect tenancy.

 

 

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

DImm

0

to disconnect from the SCSI Bus after a SCSI Command is received. Disconnect

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

 

 

Immediate does not apply in exception conditions (for example, SDTR received,

 

 

error, etc.).

DTDC

Data Transfer

Disconnect Control. This field of three bits defines further restrictions when a discon-

 

nect is permitted. These are as follows:

 

Value

Description

 

 

 

 

000b

Data transfer disconnect control is not used. Disconnect is controlled by other

 

(Def)

fields in this page.

 

 

001b - A target will not attempt to disconnect once the data transfer of a command

 

 

has started until all data of the command has been transferred. The connect time

 

 

limit and bus inactivity limit are ignored during the transfer.

 

 

010b - Reserved

 

 

 

 

 

011b - A target will not attempt to disconnect once the data transfer of a command

 

 

has started, until the command is complete. The connect time limit and bus inac-

 

 

tivity limit are ignored once the transfer has started.

First Burst Size

0

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

command during the same interconnect in which it receives the command. Not ap-

 

 

plicable for parallel SCSI.

5.12.8Verify Error Recovery Page (07h)

The Verify Error Recovery Page controls the drive’s response to error conditions that arise during the VERIFY command and during the verify operation of the WRITE AND VERIFY command. The Verify Error Recovery Page is not supported in the SCSI-1/CCS Operating Mode. The data format and field descriptions are described in Table 5-64and Table 5-65respectively.

Table 5-64Verify Error Recovery Page-(Page 7)

Byte

Bit

7

6

 

5

 

4

 

3

 

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

PS

Rsvd

 

 

 

 

 

Page Code (07h)

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

Page Length (0Ah)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

Reserved

 

 

 

 

EER

 

PER

DTE

DCR

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

Verify Retry Count

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

Verify Correction Span

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 –

9

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

10 –

11

 

 

 

 

Verify Recovery Time Limit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maxtor Atlas 10K V

5-43