Seagate Exos Enterprise 7E8, Руководство по эксплуатации продукта

Страница: 27 / 32

Seagate Exos 7E8 Serial ATA Product Manual, Rev. A 26
4.3.1 Identify Device command
The Identify Device command (command code EC
H
) transfers information about the drive to the host following power up. The data is
organized as a single 512-byte block of data, whose contents are shown in Table 8 on page 24. 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. See Section 2.0 on page 6 for default
parameter settings.
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
Word Description Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5A
H
1 Obsolete 16,383
2 ATA-reserved 0000
H
3 Obsolete 16
4 Retired 0000
H
5 Retired 0000
H
6 Obsolete 003F
H
7–9 Retired 0000
H
10–19 Serial number: (20 ASCII characters, 0000
H
= none) ASCII
20-21 Retired 0000
H
22 Obsolete 0000
H
23–26 Firmware revision (8 ASCII character string, padded with blanks to end of string) x.xx
27–46 Drive model number: (40 ASCII characters, padded with blanks to end of string)
47 (Bits 7–0) Max. sectors per interrupt on Read multiple and Write multiple (16) 8010
H
48 Trusted computing feature set supported bit 0 (SED only) 4001
H
49 Standard Standby timer, IORDY supported and may be disabled 2F00
H
50 Capabilities 4000
H
51-52 Obsolete xxxx
H
53-56 Words 54–58, 64–70 and 88 are valid xxxx
H
57–58 Obsolete xxxx
H
59
(Bit 15: 0) Block Erase Ext Not Supported
(Bit 14: 1) Overwrite Ext Supported
(Bit 13: X) Crypto Scramble Ext Supported (SED Only)
(Bit 12: 1) Sanitize feature set supported
(Bit 11: 1) Commands allowed during sanitize op as specified in ACS-3
(Bit 10: 1) Sanitize Antifreeze Lock Ext command supported
SC10
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 sec-
tors, 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 Obsolete 0000
H