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Chapter 4 SCSI Commands
LOG SENSE Command (4Dh)
DLT-S4 Interface Reference Guide
81
Figure 39
shows the SAS phy log descriptor.
Figure 39
SAS
Phy Log
Descriptor
Parameter
Control Byte
(continued)
LBIN
1
List Binary.
LP
1
List Parameter.
Parameter
Length
The Parameter Length field is set to the length of the log parameter minus three.
Protocol
Identifier
A value of 6h indicates that this log page applies to an SAS-1.1 port (see the
Serial
Attached SCSI -1.1 (SAS -1.1)
standard for specific SAS information).
Number of
Phys
The Number of Phys is set to 1h.
SAS Phy Log
Descriptor
See
figure 39
.
Bit
Byte
7
6
5
4
3
2
1
0
0
Reserved
1
Phy Indentifier
2
Reserved
3
Reserved
4
Reserved
Attached Device Type
Reserved
5
Reserved
Negotiated Physical Link Rate
6
Reserved
Attached SSP
Initiator Port
Attached STP
Initiator Port
Attached SMP
Initiator Port
Reserved
7
Reserved
Attached SSP
Target Port
Attached STP
Target Port
Attached SMP
Target Port
Reserved
8 — 15
SAS Address
16 — 23
Attached SAS Address
Field
Description