Seagate NAS HDD and NAS +SRS HDD Product Manual, Rev. E
29
SATA Interface
107
ATA-reserved
0000
H
108-111
The mandatory value of the world wide name (WWN) for the drive.
NOTE:
This field is valid if word 84, bit 8 is set to 1 indicating 64-bit WWN support.
Each drive will have a unique value.
112-118
ATA-reserved
0000
H
119
Commands and feature sets supported
41DE
H
120
Commands and feature sets supported or enabled
409C
H
121-127
ATA-reserved
0000
H
128
Security status
0021
H
129–159
Seagate-reserved
xxxx
H
160–167
ATA-reserved
0000
H
168
Device Nominal Form Factor
0002
H
169-205
ATA-reserved
0000
H
206
SCT Command Transport
10A5
H
207-208
ATA-reserved
0000
H
209
Alignment of logical blocks within a physical block
4000
H
210-216
ATA-reserved
0000
H
217
Nominal media rotation rate
175C
H
218-221
ATA-reserved
0000
H
222
Transport major version number
107F
H
223-229
ATA-reserved
0000
H
230-233
Extended Number of User Addressable Sectors
ST4000VX000 = 7,814,037,168
ST4000VX002 = 7,814,037,168
ST3000VX002 = 5,860,533,168
234–254
ATA-reserved
0000
H
255
Integrity word
xxA5
H
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.
Table 6
Identify Device commands (continued)
Word
Description
Value
