Seagate ST3000VN000, ST2000VN000 manual Bit Word

www.seagate.com				SATA Interface
Table 8 Identify Device commands (continued)
Word		Description		Value
92		Master password revision code		FFFEH
93		Hardware reset value		xxxxH
94		Automatic acoustic management		8080H
95–99		ATA-reserved		0000H
100–103		Total number of user-addressable LBA sectors available		ST4000VN000 = 7,814,037,168
		(see Section 2.2 for related information). These words are		ST3000VN000 = 5,860,533,168
		required for drives that support the 48-bit addressing		ST2000VN000 = 3,907,029,168
		feature. Maximum value: 0000FFFFFFFFFFFFh.
104–107		ATA-reserved		0000H
108–111		The mandatory value of the world wide name (WWN) for the		Each drive will have a unique value.
		drive. NOTE: This field is valid if word 84, bit 8 is set to 1
		indicating 64-bit WWN support.
112–127		ATA-reserved		0000H
128		Security status		0001H
129–159		Seagate-reserved		xxxxH
160–254		ATA-reserved		0000H
255		Integrity word		xxA5H
Note		Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not
		supported.
Note		See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
Description (if bit is set to 1)
	Bit		Word 63
	0		Multiword DMA mode 0 is supported.
	1		Multiword DMA mode 1 is supported.
	2		Multiword DMA mode 2 is supported.
	8		Multiword DMA mode 0 is currently active.
	9		Multiword DMA mode 1 is currently active.
	10		Multiword DMA mode 2 is currently active.
	Bit		Word 84
	0		SMART error login is supported.
	1		SMART self-test is supported.
	2		Media serial number is supported.
	3		Media Card Pass Through Command feature set is supported.
	4		Streaming feature set is supported.

NAS HDD Product Manual, Rev. A 31