Seagate Medalist 17242 manual Identify Drive command, Word Description Value

26 Medalist 17242, 13032, 10232, 8422 and 4312, Rev. A

The following commands contain drive-specific features that may not be described in the Draft ATA-4 Standard.

3.2.2 Identify Drive command

The Identify Drive command (command code ECH) transfers information about the drive to the host following power up. The data is organized as a single 512-byte block of data, whose contents are shown in the table below. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state of the drive. See drive specifications in Section 1 of this manual for default parameter settings.

Note. If the alternate capacity jumper is installed on these drives, the drive capacity is reduced in word 1 to 4,092 cylinders.

Word			Description	Value
	Configuration information:
	• Bit 15: 0 = ATA; 1 = ATAPI			0C5AH
0	• Bit 7: removable media
	• Bit 6: removable controller
	• Bit 0: reserved
1	Number of logical cylinders:			3FFFH
	16,383		(ST317242A)	(ST317242A)
	16,383		(ST313032A)	(ST313032A)
				(ST310232A)
	16,383		(ST310232A)
				(ST38422A)
	16,383		(ST38422A)
				20A2H
	8,354		(ST34312A)
				(ST34312A)
2	ATA-reserved			0000H
3	Number of logical heads:
	16	(ST317242A, ST313032A,		0010H
		ST310232A, ST38422A,
		ST34312A)
4	Retired			0000H
5	Retired			0000H
6	Number of logical sectors per logical			003FH
	track: 63
7–9	Retired			0000H
10–19	Serial number:			ASCII
	(20 ASCII characters, 0000H = none)