Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
114
implement the UNMAP command.
- Optimal Unmap Granularity: set to 0000_0000h to indicate that the optimal unmap granularity is not specified.
- UGAVALID - Unmap Granularity Alignment VALID: set to zero indicates that the UNMAP GRANULARITY
ALIGNMENT field is not valid.
- Unmap Granularity Alignment: set to zero and is not valid.
- Maximum Write Same Length: set to zero which indicates that there is no reported limit on the number of
logical blocks that may be requested for a single WRITE SAME command.
18.5.1.13
Inquiry Data Format - EVPD = 1, Page Code - B1h
Table 87 Inquiry Data - EVPD = 1 (Page Code = B1h)
Byte
Bit
7
6
5
4
3
2
1
0
0
Qualifier = 0
Peripheral Device Type = 0
1
Page Code = B1h
2-3
Page Length = 60 (003Ch)
4-5
Medium Rotation Rate 15030 (3AB6h)
6
Reserved
7
Reserved
Nominal Form Factor = 2h
8-63
Reserved
- Qualifier field is set to zero to indicate that the LUN specified in the Command Block is currently supported.
- Peripheral Device Type is set to zero to indicate that the device is Direct Access.
- Page Code is set to the value of the page code field in the CDB.
- Page Length is set to 60, and this field specifies the length of the following page data.
- Medium Rotation Rate field is set to 15030.
- Nominal Form Factor field is set to 2h.