SCSI Description

 

 

Maxtor-Unique Page-Field Descriptions (Page 39h)

 

 

 

 

 

Parameters Savable. This bit is only used with the MODE SENSE command.

(KGNFPS

&GHCWNV1

A returned value of 1 indicates&GUETKRVKQPthat the disk drive is capable of saving the

 

 

page in a non-volatile, vendor-specific location. The bit is RESERVED with

 

 

a MODE SELECT command.

 

 

 

WaitSpinUp

0

When this field = 0, the disk drive spins up upon power on. When this field

Enable

= 1, the disk drive performs a Wait/Spin.

 

 

 

 

Enable Error

0

When this field = 0, Error Logging is disabled.

Logging

When this field = 1, Error Logging is enabled.

 

 

 

 

Disable

0

When this field = 0, Parity Checking is enabled.

Parity Check

When this field = 1, Parity Checking is disabled.

 

 

 

 

 

 

When this field = 0, reallocation of blocks that have uncorrectable read er-

 

 

rors does not take place

 

 

When this field = 1, a block that encounters an uncorrectable read error will

Realloca-

 

be marked for pending reallocation. The block in error remains “as is” for a

tion Uncor-

0

possible recovery on a future access. If a subsequent successful read or

rected

write (with readback / compare) occur, the pending reallocation will be de-

Table

Errors

ferred. However, it will be “remembered” that an unrecoverable read oc-

 

curred at one time, and if a second unrecoverable read occurs, the block will

 

be reallocated on the next successful access. Also, if a subsequent unsuc-

 

cessful write occurs on a block marked for pending reallocation, the block

 

5will-84be reallocated.

 

 

When this field = 0, the disk drive ignores any information in Byte 2 of the

 

 

FORMAT UNIT command. Note that if the setting in Byte 2 of FORMAT

Enable Fill

1

UNIT is “0”, the disk drive will interpret that setting as “1.”

 

Data Pattern

When this field = 1, the disk drive writes the data pattern that is specified

 

 

 

 

 

in Byte 2 of the FORMAT UNIT command into every user-accessible block

 

 

when the disk drive executes a FORMAT UNIT command.

 

 

 

Disable

1

When this field = 0, SCAM is enabled. When this field = 1, SCAM features

SCAM

(Parallel)

are disabled.

 

 

 

 

 

When this field = 0, a UNIT ATTENTION condition exists following power

 

 

on or a reset caused by either a BUS DEVICE RESET message or a hard reset

Disable Unit

 

condition.

0

 

Att’n

When this field = 1, the disk drive will not issue a CHECK CONDITION sta-

 

 

 

tus with the UNIT ATTENTION sense key on the first command following a

 

 

reset. The disk drive will execute the first command issued after a reset con-

 

 

dition.

 

 

 

 

 

Software Selectable SCSI ID Enable. When this field = 0, the disk drive’s

 

 

SCSI ID is determined via the disk drive’s hardware ID select jumper set-

SSSIE

0

tings.

 

 

When this field = 1, the disk drive’s SCSI ID setting is determined by the

 

 

value set in the Software Selectable SCSI ID field (Byte 3, bits 0 – 3).

 

 

 

Disable

0

When this field = 0, the Auto WRITE function is enabled.

Auto WRITE

When this field = 1, the Auto WRITE function is disabled.

 

 

 

 

Disable

0

When this field = 0, the Auto WRITE function is enabled.

Auto READ

When this field = 1, the Auto WRITE function is disabled.

 

 

 

 

 

 

When this field = 0, Delay Spin is not enabled.

 

 

When this field = 1, and Staggered Spin Delay (Bytes 6 & 7) is enabled, the

Use Three

 

three lower bits of the disk drive’s SCSI ID are used for the multiplier to de-

Bits for

0

termine the length of the delay. When only three bits are used, disk drives

Delay

 

0 through 7 and drives 8 through 15 have the same corresponding delays

 

 

since the fourth bit is not used (disk drive 0 has the same delay as disk drive

 

 

8, disk drive 1 has the same delay as disk drive 9, and so on).

 

 

 

5-68 Maxtor Atlas 10K III

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Maxtor 10K III manual Maxtor-Unique Page-Field Descriptions Page 39h, Scam, Sssie