IBM Ultrium Internal Tape Drive T200, Справочное руководство

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LOG SENSE
Table 15. LOG SENSE Command
7 6 5 4 3 2 1 0
0 Operation Code (4Dh)
1 Logical Unit Number (0) Reserved PPC(0) SP(0)
2 PC Page Code
3 Reserved
4 Reserved
5
Parameter Pointer (0)
6
7
Allocation Length
8
9 Control
The LOG SENSE command causes log data to be sent to the initiator.
If the Page Control (PC) field is 00b or 10b, the maximum value for each log entry
is returned. If it is 01b, the current values are returned. If it is 11b, the power-on
values for the log are returned.
The Page Code indicates the log page to return.
The Parameter Pointer Control (PPC) is set to 0. Returning changed parameters is
not supported. The Save Page (SP) flag must be set to 0. Saved pages are not
supported. The Parameter Pointer must be 0.
Cartridge-specific log parameter counts are cleared when a cartridge has
successfully loaded.
Chapter 2. Command Support
17