Table 171 Capacity Log Page - Western Digital Ultrastar DC HC310 Specifications

11.23.9.3 Capacity (page 02h)
The Capacity log page provides information about the capacity of the device.
Offset Type Content
0..7 QWord Capacity page information header
Bit
63
62:24
23:16
15:0
8..15 QWord Device Capacity
Bit
63
62:48
47:0
16..23 QWord Physical/Logical Sector Size
Bit
63
62
61
60:22
21:20
19:16
15:0
24..31 QWord Logical Sector Size
Bit
63
62..32
31..0
32..39 QWord Nominal Buffer Size
Bit
63
62:0
40..511 Reserved

Table 171 Capacity log page

Meaning
Set to one.
Reserved
Page Number. Shall be set to 02h.
Revision number. Shall be set to 0001h
Meaning
Set to one.
Reserved
ACCESSIBLE CAPACITY field
Meaning
Contents of the QWord are valid
LOGICAL TO PHYSICAL SECTOR RELATIONSHIP SUPPORTED bit
LOGICAL SECTOR SIZE SUPPORTED bit
Reserved
ALIGNMENT ERROR REPORTING field
LOGICAL TO PHYSICAL SECTOR RELATIONSHIP field
LOGICAL SECTOR OFFSET field
Meaning
Contents of the QWord are valid
Reserved
LOGICAL SECTOR SIZE field
Meaning
Contents of the QWord are valid
BUFFER SIZE field
Western Digital Hard Disk Drive OEM Specification
194