Categories Of Changeable; Unit Attention Condition Page (00H); Table 5-59 Categories Of Changeable - Maxtor ATLAS 10K IV User Manual

Table 5-58
Field
Number of Blocks
Block Length
5.14.4 Categories of Changeable Pages
The drive's changeable pages are described on the following pages. The data fields
for each of these pages fall into one of the categories described in Table 5-59.
Category
A field in this category can be modified by the MODE SELECT command, can be saved and can
affect the drives processing. The drive uses the value in the field and, if the SP bit is set, preserves
Fully Supported the new value of the field in non-volatile memory on the drive. (The PS bit must have been set
when the mode page was returned with a MODE SENSE command.)
A value in this field is never used or validated; it is never looked at by the drive. Ignored fields are
Ignored not underlined in the Mode Parameter Pages' figures or tables and are not described in the Field
Description tables.
5.14.5

Unit Attention Condition Page (00h)

The Unit Attention Page is used to enable or disable the generation of Unit Attention
Conditions. The Unit Attention Condition Page format and field descriptions are
described in Table 5-60 and Table 5-61 respectively.
Bit
Byte
0
1
2
3
Mode Parameter Block Descriptor-Field Descriptions
This field specifies the number of logical blocks on the unit that are affected by the cur-
rent MODE SELECT command.
When this field is 0, the MODE SELECT parameters are put into effect for all logical
blocks on the unit.
The maximum value allowed is the total number of initiator-addressable logical blocks
for the value specified in the Block Length field.
A value that is less than the maximum value will decrease the number of initiator-acces-
sible logical blocks to the amount specified.
This field specifies the length, in bytes, of each logical sector.
Categories of Changeable Pages
Table 5-59
Unit Attention Condition Page (Page 0)
Table 5-60
7 6 5
PS Rsvd
Reserved
Description
Description
4 3 2
Page Code (00h)
Page Length (02h)
DUA
Reserved (00h)
Maxtor Atlas 10K IV
SCSI Description
1 0
Reserved
5-41