![Western Digital Ultrastar DC HC310 Specifications Download Page 210](http://html1.mh-extra.com/html/western-digital/ultrastar-dc-hc310/ultrastar-dc-hc310_specifications_961649210.webp)
196
Western Digital Hard Disk Drive OEM Specification
Offset
Type
Content
8..15
QWord
Supported Capabilities
11
GPL SUPPORTED bit
10
STREAMING SUPPORTED bit
9
Reserved
8
SMART SELF-TEST SUPPORTED bit
7
SMART ERROR LOGGING SUPPORTED bit
6
EPC SUPPORTED bit
5
SENSE DATA SUPPORTED bit
4
FREE-FALL SUPPORTED bit
3
DM MODE 3 SUPPORTED bit
2
GPL DMA SUPPORTED bit
1
WRITE UNCORRECTABLE SUPPORTED bit
0
WRV SUPPORTED bit
16..23
QWord
DOWNLOAD MICROCODE Capabilities
Bit
Meaning
63
Contents of the QWord are valid
62:35
Reserved
34
DM OFFSETS DEFERRED SUPPORTED bit
33
DM IMMEDIATE SUPPORTED bit
32
DM OFFSETS IMMEDIATE SUPPORTED bit
31:16
DM MAXIMUM TRANSFER SIZE field
15:0
DM MINIMUM TRANSFER SIZE field
24..31
QWord
Nominal Media Rotation Rate
Bit
Meaning
63
Set to one
62:16
Reserved
15:0
NOMINAL MEDIA ROTATION RATE field
32..39
QWord
Nominal Form Factor [was word 168]
Bit
Meaning
63
Contents of the QWord are valid
62:4
Reserved
3:0
Nominal Form Factor
40..47
QWord
Write-Read-Verify Sector Count Mode 3
Bit
Meaning
63
Contents of the QWord are valid
62:32
Reserved
31:0
WRV MODE 3 COUNT field
48..55
QWord
Write-Read-Verify Sector Count Mode 2
Bit
Meaning
63
Contents of the QWord are valid
62:32
Reserved
31:0
WRV MODE 2 COUNT field
56..71
DQWord World wide name [was word 108]
Bit
Meaning
127
Set to one
126:64
Reserved
63:0
World wide name
Table 173 Supported Capabilities log page - Continued -