Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
279
18.54
WRITE (32) - (7F/0B)
Table 259 WRITE (32) - (7F/0B)
Byte
Bit
7
6
5
4
3
2
1
0
0
Command Code = 7Fh
1
VU = 0 Reserved = 0 FLAG LINK
2-5
Reserved = 0
6
Reserved = 0 Group Number = 0
7
Additional CDB Length = 18h
8-9
Service Action = 000Bh
10
WRPROTECT
DPO
FUA
Rsvd=0
FUA_NV
Rsvd=0
11
Reserved = 0
12-19
(MSB)
Logical Block Address
(LSB)
20-23
(MSB)
Expected Initial Logical Block Reference Tag
(LSB)
24-25
(MSB)
Expected Logical Block Application Tag
(LSB)
26-27
(MSB)
Logical Block Application Tag Mask
(LSB)
28-31
(MSB)
Transfer Length
(LSB)
The WRITE command requests that the drive write data transferred from the initiator to disk. Each logical block
transferred includes user data and may include protection information, based on the WRPROTECT field and the
drive format. Each logical block written includes user data and, if the drive is formatted with protection information
enabled, protection information.
If the drive is formatted with type 2 protection (PROT_EN=1 and P_TYPE=001b in the READ CAPACITY (16)
parameter data), then this command will be processed normally. Any other protection types will result in Check
Condition status to be returned with sense key of Illegal Request and additional sense code of Invalid Command
Operation Code
The Expected Initial Logical Block Reference Tag field contains the value of the Logical Block Reference Tag field