Reference Guide

Chapter 4 SCSI Commands
READ ATTRIBUTE Command (8Ch)
DLT-S4 Interface Reference Guide 239
The returned parameter data contains the requested attributes in
ascending numerical order by attribute identifier value, using the format
shown in figure 119
.
Figure 119 READ ATTRIBUTE
with ATTRIBUTE VALUES
Service Action
—Parameter
List Format
Table 132 READ ATTRIBUTE
with ATTRIBUTE VALUES
Service Action Parameter —
Field Descriptions
ATTRIBUTE LIST Service Action 4
The READ ATTRIBUTE command with the ATTRIBUTE LIST service action
returns parameter data containing the attribute identifiers for the
Bit
Byte
7 6 5 4 3 2 1 0
0 — 3
(MSB)
Available Data (n – 3)
(LSB)
Attributes
4 — (x + 3)
Attribute (first attribute)
Length (x)
(n — y + 1)
— n
Attribute (last attribute)
Length (y)
Field Description
Available
Data
Contains the number of bytes of attribute
information in the parameter list. If the parameter
list is truncated as a result of insufficient allocation
length, the contents of the Available Data field are
not altered.
Attribute The drive returns each Attribute formatted as
described in Enhanced Medium Auxiliary Memory
(EMAM) Attributes.