Fujitsu MHY2040BS, MHY2160BS manual Smart error logging, Data format of Smart Summary Error Log 1/2

5.3 Host Commands

•SMART error logging

If the device detects an unrecoverable error during execution of a command received from the host, the device registers the error information in the SMART Summary Error Log (see Table 5.18) and the SMART Comprehensive Error Log (see Table 5.19), and saves the information on media.

The host issues the SMART Read Log Sector sub-command (Features field = D5h, Sector Number field = 01h, Sector Count field = 01h) and can read the SMART Summary Error Log.

The host issues the SMART Read Log Sector sub-command (Features field = D5h, Sector Number field = 02h, Sector Count field = 33h) and can read the SMART Comprehensive Error Log.

Table 5.18 Data format of SMART Summary Error Log (1/2)

Byte(hex)			Item
00	Version of this function
01	Pointer for the latest "Error Log Data Structure"
02 to 0D		Forth last command data structure
0E to 19		Third last command data structure
1A to 25		Second last command data structure
26 to 31		Last command data structure
32				Device Control field value
33				Features field value
	Error log data
34				Sector Count field value
	structure
35				Sector Number field value
		Command data
36				Cylinder Low field value
		structure
37				Cylinder High field value
38				Drive/Head field value
39				Command field value
3A to 3D				Elapsed time after the power-on
				sequence (unit: ms)

C141-E269 5-65