Seagate NAS HDD Product Manual page 26

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Word Description
55 Number of current logical heads
56 Number of current logical sectors per logical track
57–58 Current capacity in sectors
59 Number of sectors transferred during a Read Multiple or Write Multiple command
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.
62 Retired
63 Multiword DMA active and modes supported (see note following this table)
64 Advanced PIO modes supported (modes 3 and 4 supported)
65 Minimum multiword DMA transfer cycle time per word (120 nsec)
66 Recommended multiword DMA transfer cycle time per word (120 nsec)
67 Minimum PIO cycle time without IORDY flow control (240 nsec)
68 Minimum PIO cycle time with IORDY flow control (120 nsec)
69 Zoned ATA Feature support
70–74 ATA-reserved
75 Queue depth
76 SATA capabilities
77 Reserved for future SATA definition
78 SATA features supported
79 SATA features enabled
80 Major version number
81 Minor version number
82 Command sets supported
83 Command sets supported
84 Command sets support extension (see note following this table)
85 Command sets enabled
86 Command sets enabled
87 Command sets enable extension
88 Ultra DMA support and current mode (see note following this table)
89 Security erase time
90 Enhanced security erase time
92 Master password revision code
93 Hardware reset value
94 Automatic acoustic management
95 Stream Min. Request Size
96 Streaming Transfer Time - DMA
97 Streaming Access Latency - DMA and PIO
98–99 Streaming Performance Granularity
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.
104 Streaming Transfer Time - PIO
105–107 ATA-reserved
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.
112–127 ATA-reserved
128 Security status
Seagate NAS HDD Product Manual, Rev. C
SATA Interface
Value
xxxx
H
xxxx
H
xxxx
H
xxxx
H
0FFFFFFFh*
0000
H
xx07
H
0003
H
0078
H
0078
H
0078
H
0078
H
0001
H
0000
H
001F
H
xxxx
H
xxxx
H
xxxx
H
xxxx
H
01F0
H
0028
H
364B
H
7F09
H
4163
H
30xx
H
BE09
H
4163
H
xx7F
H
0039
H
0039
H
FFFE
H
xxxx
H
8080
H
0000
H
0000
H
0000
H
0000
H
ST8000VN000 = 15,628,053,168
ST6000VN000 = 11,721,045,168
0000
H
0000
H
Each drive will have
a unique value.
0000
H
0001
H
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