Seagate NAS HDD Product Manual, Rev. C
25
SATA Interface
55
Number of current logical heads
xxxx
H
56
Number of current logical sectors per logical track
xxxx
H
57–58
Current capacity in sectors
xxxx
H
59
Number of sectors transferred during a Read Multiple or Write Multiple command
xxxx
H
60–61
Total number of user-addressable LBA sectors available (see Section 2.2 for related information)
*Note:
The maximum value allowed in this field is: 0FFFFFFFh (268,435,455 sectors, 137GB).
Drives with capacities over 137GB will have 0FFFFFFFh in this field and the actual number of
user-addressable LBAs specified in words 100-103. This is required for drives that support the
48-bit addressing feature.
0FFFFFFFh*
62
Retired
0000
H
63
Multiword DMA active and modes supported (see note following this table)
xx
07
H
64
Advanced PIO modes supported (modes 3 and 4 supported)
0003
H
65
Minimum multiword DMA transfer cycle time per word (120 nsec)
0078
H
66
Recommended multiword DMA transfer cycle time per word (120 nsec)
0078
H
67
Minimum PIO cycle time without IORDY flow control (240 nsec)
0078
H
68
Minimum PIO cycle time with IORDY flow control (120 nsec)
0078
H
69
Zoned ATA Feature support
0001
H
70–74
ATA-reserved
0000
H
75
Queue depth
001F
H
76
SATA capabilities
xxxx
H
77
Reserved for future SATA definition
xxxx
H
78
SATA features supported
xxxx
H
79
SATA features enabled
xxxx
H
80
Major version number
01F0
H
81
Minor version number
0028
H
82
Command sets supported
364B
H
83
Command sets supported
7F09
H
84
Command sets support extension (see note following this table)
4163
H
85
Command sets enabled
30
xx
H
86
Command sets enabled
BE09
H
87
Command sets enable extension
4163
H
88
Ultra DMA support and current mode (see note following this table)
xx
7F
H
89
Security erase time
0039
H
90
Enhanced security erase time
0039
H
92
Master password revision code
FFFE
H
93
Hardware reset value
xxxx
H
94
Automatic acoustic management
8080
H
95
Stream Min. Request Size
0000
H
96
Streaming Transfer Time - DMA
0000
H
97
Streaming Access Latency - DMA and PIO
0000
H
98–99
Streaming Performance Granularity
0000
H
100–103
Total number of user-addressable LBA sectors available (see Section 2.2 for related information).
These words are required for drives that support the 48-bit addressing feature. Maximum value:
0000FFFFFFFFFFFFh.
ST8000VN000 = 15,628,053,168
ST6000VN000 = 11,721,045,168
104
Streaming Transfer Time - PIO
0000
H
105–107
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.
112–127
ATA-reserved
0000
H
128
Security status
0001
H
Word
Description
Value