HGST HUS724040ALS640 User Manual

HGST Ultrastar 7K4000 (SAS) Hard Disk Drive Specification
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18.23 READ CAPACITY (16) (9E/10)
Table 153: Read Capacity (16) (9E/10)
The READ CAPACITY (16) (9E/10) command returns information regarding the capacity of the drive. This command is pro-
cessed like the standard READ CAPACITY (25) command.
18.23.1 Returned Data Format
The following data is returned to the initiator in the DATA OUT phase.
Table 154: Returned Data Format
The protection type (P_TYPE) field and the protection enable (PROT_EN) bit indicate the drive's current type of protection.
.
Byte
Bit
67543210
0 Command Code = 9Eh
1 Reserved = 0 Service Action = 10h
2-9 (MSB) Logical Block Address (LSB)
10-13 (MSB) Allocation Length (LSB)
14 Reserved = 0 PMI
15 VU = 0 Reserved = 0 FLAG Link
Byte
Bit
6754321 0
0 - 7 (MSB) Maximum Logical Address (LSB)
8 - 11 (MSB) Block Length (LSB)
12 Reserved = 0 P-Type Prot-EN
13 - 31 Reserved = 0
Prot-EN P-Type Description
0b 000b The drive is formatted to type 0 protection
1b 000b The drive is formatted to type 1 protection
1b 001b The drive is formatted to type 2 protection

HGST HUS724040ALS640 Specifications

General

Brand	HGST
Model	HUS724040ALS640
Category	Storage
Language	English