HGST HUS724040ALS640 User Manual

HGST Ultrastar 7K4000 (SAS) Hard Disk Drive Specification
62
17.7.3 XFER_RDY Information Units
The XFER_RDY frame is sent by the Drive to request write data (i.e. out bound data) from the initiator.
Table 36: XFER_RDY Information Unit
•The REQUESTED OFFSET field contains the buffer offset of the segment of write data the Initiator may transmit to the
Drive (using DATA frames). The requested offset shall be a multiple of four.
•The WRITE DATA LENGTH field contains the number of bytes of write data the Initiator may transmit to the Drive
(using DATA frames) from the requested offset.
17.7.4 DATA Information Units
The DATA frame is sent by the Drive to the Initiator (in bound data) or by the Initiator to the Drive (out bound data).
Table 37: DATA Information Unit
17.7.5 RESPONSE Information Units
The RESPONSE frame is sent by the Drive to the Initiator (in bound data) or by the Initiator to the Drive (out bound data).
Table 38: Response Information Unit
Byte Bit
76543210
0 - 3 REQUESTED OFFSET
4 - 7 WRITE DATA LENGTH
8 - 11 RESERVED
Byte Bit
76543210
0 - (n-1) DATA
Byte Bit
76543210
0-7 RESERVED
8-9 MSB RETRY DELAY TIMER LSB
10 RESERVED DataPres
11 STATUS
12 - 15 Reserved
16 - 19 SENSE DATA LENGTH (n bytes)
20 - 23 RESPONSE DATA LENGTH (m bytes)
24 - (24+m) RESPONSE DATA
(24+m) -
(23+m+n)
SENSE DATA

HGST HUS724040ALS640 Specifications

General

Brand	HGST
Model	HUS724040ALS640
Category	Storage
Language	English