Log sense command – Seagate STT8000A User Manual
Page 52
Chapter 5
ATAPI Interface
Page 44
STT8000A Product Manual
Log Sense command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation code (4Dh)
1
Reserved
2
01(PC)
Page Code
3
Reserved
4
Reserved
5
(MSB)
Parameter Pointer
6
(LSB)
7
(MSB)
Allocation Length
8
(LSB)
9
Reserved
The PC (Page Control) field is 01, for current values. The Page Code field identifies
which page of data is being requested. The Parameter Pointer field allows
requested parameter data to begin from a specific parameter code. The Allocation
Length field specifies the number of data bytes to transfer.
The following table presents the supported log pages.
Byte
Description
Value
Meaning
0
Page Code
00h
Supported Log Pages Page
1
Reserved
00h
-
2,3
Page Length
00,04h
4 Supported Pages
4
First Supported Page
00h
Supported Log Pages Page Code
5
03h
Error Counter (Read) Page Code
6
31h
Tape Capacity Page Code
7
Last Supported Page
00h
Filler