Western Digital Ultrastar DC HC310 - Table 171 Capacity Log Page

194
Western Digital Hard Disk Drive OEM Specification
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
Meaning
63
Set to one.
62:24
Reserved
23:16
Page Number. Shall be set to 02h.
15:0
Revision number. Shall be set to 0001h
8..15
QWord
Device Capacity
Bit
Meaning
63
Set to one.
62:48
Reserved
47:0
ACCESSIBLE CAPACITY field
16..23
QWord
Physical/Logical Sector Size
Bit
Meaning
63
Contents of the QWord are valid
62
LOGICAL TO PHYSICAL SECTOR RELATIONSHIP SUPPORTED bit
61
LOGICAL SECTOR SIZE SUPPORTED bit
60:22
Reserved
21:20
ALIGNMENT ERROR REPORTING field
19:16
LOGICAL TO PHYSICAL SECTOR RELATIONSHIP field
15:0
LOGICAL SECTOR OFFSET field
24..31
QWord
Logical Sector Size
Bit
Meaning
63
Contents of the QWord are valid
62..32
Reserved
31..0
LOGICAL SECTOR SIZE field
32..39
QWord
Nominal Buffer Size
Bit
Meaning
63
Contents of the QWord are valid
62:0
BUFFER SIZE field
40..511
Reserved
Table 171 Capacity log page