E20425-01 •
Chapter 4 Commands
87
Log Sense Command
■
Log Sense Command
The Log Sense command returns device statistical data to the host.
Table 54. Log Sense Command
Byte
Bit
7
6
5
4
3
2
1
0
0
Operation Code (4Dh)
1
Reserved PPC
SP
2
PC
Page Code
3
thru
4
(MSB)
Reserved
(LSB)
5
thru
6
(MSB)
Parameter Pointer
(LSB)
7
thru
8
(MSB)
Allocation Length
(LSB)
9
Control Byte
Parameter
Value
PPC:
Parameter Pointer Control
0 = Send all log parameters for the specified log page
1 = Vendor specific (ignored)
SP:
Save Parameters
0 = Not supported
PC:
Page Control
00b = Current Threshold Values
01b = Current Cumulative Values
10b = Default Threshold Values
11b = Default Cumulative Values
Page Code:
Log page to return
00h = Supported log pages
02h = Write error counter page
03h = Read error counter page
06h = Non-medium error page
0Ch = Sequential access device page
2Eh = Tape alert page
3Ah = Vendor unique drive statistics page (T10000A or
T10000B only)
3Bh = Vendor unique port statistics page
3Ch = Vendor unique drive statistics page (T10000C only)
Parameter Pointer
Return data starting at this parameter code
Allocation Length
Maximum length of parameter data to transfer
Summary of Contents for Storage Tek T10000
Page 14: ...Tables xiv T10000 Interface Reference Manual January 2011 E20425 01...
Page 18: ...What s New xx T10000 Interface Reference Manual January 2011 E20425 01...
Page 82: ...Private Loop SCSI Target Discovery 64 T10000 Interface Reference Manual January 2011 E20425 01...
Page 286: ...Glossary 268 T10000 Interface Reference Manual January 2011 E20425 01...
