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SCSI Commands: 22BMODE SELECT
Page
98
Byte
Bits
7 6 5 4 3 2 1 0
55
3.10.11.3.1
SAS Control and Discover Subpage Field Descriptions
Field
Bytes
Bits
Description
Page Code
0
0-5
19h, indicating a Port Control Mode Page.
SPF
0
6
Sub Page Format.
0 = page_0 Mode Page format
1 = Sub_page format
Parameters
Saveable
0 7
Subpage
Code
1
01h = Phy Control And Discover Subpage
Page
Length
2-3
52 parameter bytes follow the Page Length byte.
Protocol
Identifier
4
0-3
6 = Serial attached SCSI
Number of
Phys
7
01h = The drive contains one SAS phy
Phy
Identifier
9
00h
Attached
Device
Type
12
4-6
001b = End device
Negotiated
Physical
Link Rate
13
0-3
0h = UNKNOWN: Phy is enabled; unknown physical link rate.
1h = DISABLED: Phy is disabled.
2h = PHY_RESET_PROBLEM: Phy is enabled; the phy obtained
dword synchronization for at least one physical link rate during
the SAS speed negotiation sequence but the SAS speed
negotiation sequence failed (i.e., the last speed negotiation
window, using a physical link rate expected to succeed, failed).
These failures may be logged in the SMP REPORT PHY
ERROR LOG function and/or the Protocol-Specific Port log
page
3h = SPINUP_HOLD: Phy is enabled; detected a SATA device and
entered the SATA spinup hold state. The LINK RESET and
HARD RESET operations in the SMP PHY CONTROL function
may be used to release the phy. This field shall be updated to
this value at SATA spinup hold time(i.e., after the COMSAS
Detect Timeout timer expires during the SATA OOB sequence)
if SATA spinup hold is supported.
4h = PORT_SELECTOR: Phy is enabled; detected a SATA port
selector. The physical link rate has not been negotiated since
the last time the phy’s SP state machine entered the
SP0:OOB_COMINIT state. The SATA spinup hold state has not
been entered since the last time the phy’s SP state machine
entered the SP0:OOB_COMINIT state. The value in this field
may change to 3h, 8h, or 9h if attached to the active phy of the
SATA port selector. Presence of a SATA port selector is
indicated by the ATTACHED SATA PORT SELECTOR bit.
8h = G1: Phy is enabled; 1,5 Gbps physical link rate. This field
shall be updated to this value after the speed negotiation
sequence completes.
9h = G2: Phy is enabled; 3,0 Gbps physical link rate. This field
shall be updated to this value after the speed negotiation
sequence completes.
Summary of Contents for LTO 4
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