Seagate STT8000A - 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