IBM T200F manual LOG Sense Command

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