Identify Device Command - Seagate ST3000VX000 Product Manual

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Command name
Write Multiple Extended
Write Multiple FUA Extended
Write Sectors
Write Sectors Without Retries
Write Sectors Extended
Write Stream DMA Extended
Write Stream Extended
Write Uncorrectable
4.3.1

Identify Device command

The Identify Device command (command code EC
power up. The data is organized as a single 512-byte block of data, whose contents are shown in on page 19. 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.
The following commands contain drive-specific features that may not be included in the SATA specification.
Word Description
0 Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1 Number of logical cylinders
2 ATA-reserved
3 Number of logical heads
4 Retired
5 Retired
6 Number of logical sectors per logical track: 63
7–9 Retired
10–19 Serial number: (20 ASCII characters, 0000
20 Retired
21 Retired
22 Obsolete
23–26 Firmware revision
(8 ASCII character string, padded with blanks to end of string)
27–46 Drive model number:
(40 ASCII characters, padded with blanks to end of string)
47 (Bits 7–0) Maximum sectors per interrupt on Read multiple and Write
multiple (16)
48 Reserved
49 Standard Standby timer, IORDY supported and may be disabled
Seagate SV35 Series HDD Product Manual, Rev. E
Command code (in hex)
39
H
CE
H
30
H
31
H
34
H
3A
H
3B
H
45
H
) transfers information about the drive to the host following
H
= none)
H
Value
0C5A
H
16,383
0000
H
16
0000
H
0000
H
003F
H
0000
H
ASCII
0000
H
0400
H
0000
H
x.xx
8010
H
0000
H
2F00
H
21