Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
56
•
LPEfx
Loop Port Enable all
•
LIP(F7,F7)
Loop Initialization, no valid AL_PA
•
LIP(F8,F7)
Loop Initialization, loop failure, no valid AL_PA
•
LIP(F7,AL_PS)
Loop Initialization, valid AL_PA
•
LIP(F8,AL_PS)
Loop Initialization, loop failure, valid AL_PA
•
LIP(AL_PD,AL_PS)
Loop Initialization, reset L_Port
17.1.4 Frames
Information transfer is achieved via frames that are constructed from words and ordered sets. All frames have the same general
format, as shown in Table 26.
Table 26: General frame format
The SOF ordered set indicates the start of frame and provides word synchronization.
The Header is the first field after the SOF delimiter. It is used by the link control facility to control link operations, control
device protocol transfer, and to detect missing or out of order frames. The header is illustrated in Table 27.
FC-PH describes the content of each field except 'Parameter'. SCSI-FCP defines this field as RLTV_OFF (Relative Offset).
Table 27: Frame header
The Payload follows the header and has a length between 0 and 2048 bytes, which must be divisible by 4. An additional 0-3
fill bytes are appended to the payload in order to ensure that it ends on a word boundary.
The Cyclic Redundancy Check (CRC) is a four byte field following the payload. It is used to verify the integrity of the header
and payload.
The EOF ordered set marks the end of a frame.
17.1.5 Sequences
A Sequence is a set of one or more related frames that flow in one direction only. The sequence is identified by the Sequence
Identifier (SEQ_ID) field in the frame header.
Field name
SOF
Header
Payload
Fill bytes
CRC
EOF
Field size, # of bytes
4
24
0 to 2048
0 to 3
4
4
Byte
word
3
2
1
0
0
R-CTL
D-ID
1
Reserved
S-ID
2
TYPE
F-CTL
3
SEQ-ID
DF-CTL
SEQ-CNT
4
OX-ID
RX-ID
5
Parameter (RLTV_OFF)
Содержание Ultrastar 15K450
Страница 18: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 2 ...
Страница 20: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 4 ...
Страница 22: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 6 ...
Страница 30: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 14 ...
Страница 32: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 16 ...
Страница 34: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 18 ...
Страница 44: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 28 ...
Страница 52: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 36 1 4 6 2 0 8 101 6 0 25 FRO NT LEFT 25 8 0 3 ...
Страница 60: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 44 ...
Страница 62: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 46 ...
Страница 65: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 49 Korea MIC Taiwan BSMI ...
Страница 66: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 50 ...
Страница 68: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 52 ...
Страница 118: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 102 ...
Страница 130: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 114 ...
Страница 180: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 164 ...
Страница 299: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 283 ...
Страница 322: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 306 ...
Страница 324: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 308 ...
Страница 387: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 371 ...
Страница 392: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 376 ...
Страница 416: ...Hitachi Ultrastar 15K450 FC AL Hard Disk Drive Specification 398 WRITE SAME 41 302 Z zero seeks 161 ...