Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
180
- Mode Page 3
- Alternate Sector per Zone
- Alternate Track per Zone
- Alternate Track per Logical Unit
- Sector per Track
- Track Skew Factor
- Cylinder Skew Factor
- Starting Boundary contains the first physical location of the active notch. The first three bytes are the cylinder
number and the last byte is the head. The value sent in this field is ignored.
- Ending Boundary contains the last physical location of the active notch. The first three bytes are the cylinder
number and the last byte is the head. The value sent in this field is ignored.
- Pages Notched is a bit map of the mode page codes that indicates which pages contain parameters that may
be different for different notches. The most significant bit of this field corresponds to page code 3Fh and the
least significant bit corresponds to page code 00h. If a bit is one, then the corresponding mode page contains
parameters that may be different for different notches. If a bit is zero, then the corresponding mode page
contains parameters that are constant for all notches.
18.10.11
Mode Page 18h
(SAS only)
Table 147 Page 18h (Protocol-Specific Logical Unit mode page)
Byte
Bit
Default
7
6
5
4
3
2
1
0
0
PS=0 SPF=0 Page Code = 18h
18h
1
Page Length = 6h
6h
2
Reserved Transport Layer Retries=0 Protocol Identifier = 6h
6h
3
Reserved = 0
00h
4-7
Reserved
00h
This page defined protocol-specific parameters that affect the logical unit.
- Transport Layer Retries is unchangeable and set to zero. The drive does not support Transport Layer Retries as
defined in SAS 1.1.