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100

101

Chapter 4 SCSI Commands

MODE SELECT (6) / (10) Command (15h / 55h)

DLT-S4 Interface Reference Guide 132

Figure 72 shows the SAS phy mode descriptor.

Figure 72 SAS Phy Mode

Descriptor

Page Length Indicates the number of bytes in the page, excluding the 4 bytes that make up the

header.

Protocol Identifier A value of 6h indicates that this mode page applies to an SAS SSP-specific mode

page (see the Serial Attached SCSI – 1. 1 (SAS-1.1) for specific SAS information).

Number of Phys Indicates the Number of Phys. Must be to 1.

SAS Phy Mode

Descriptor

See figure 72

Bit

7 6 5 4 3 2 1 0

Byte

8 Reserved

9 Phy Indentifier

10 Reserved

11 Reserved

12 Reserved Attached Device Type Reserved

13 Reserved Negotiated Physical Link Rate

14 Reserved

Attached

SSP Initiator

Port

Attached

STP

Initiator

Port

Attached

SMP

Initiator

Port

Reserved

15 Reserved

Attached

SSP Target

Port

Attached

STP Target

Port

Attached

SMP Target

Port

Reserved

16 — 23 SAS Address

24 — 31 Attached SAS Address

Field Description

1 2 ... 161 162 163 164 165 166 167 168 169 170 171 ... 385 386

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