Seagate ST450MP0054 - 512E ユーザーズマニュアル

S

EAGATE 

E

NTERPRISE 

P

ERFORMANCE 

15K HDD 

AND 

E

NTERPRISE 

T

URBO 

SSHD SAS P

RODUCT 

M

ANUAL

, R

EV

. B

 

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This section partially describes the interface requirements as implemented on Enterprise Performance 15K HDD and Enterprise Turbo 

SSHD drives. Additional information is provided in the SAS Interface Manual (part number 100293071).

This section lists the SAS-specific features supported by Enterprise Performance 15K HDD and Enterprise Turbo SSHD drives.

11.1.1  Task management functions
The table below lists the SAS task management functions supported.

11.1.2  Task management responses
The table below lists the SAS response codes returned for task management functions supported.

Enterprise Performance 15K HDD and Enterprise Turbo SSHD SAS drives have two independent ports. These ports may be connected in 

the same or different SCSI domains. Each drive port has a unique SAS address.

The two ports have the capability of independent port clocking (e.g. both ports can run at 6Gb/s or the first port can run at 6Gb/s while the 

second port runs at 3Gb/s.) The supported link rates are 1.5, 3.0, or 6.0 Gb/s.

Subject to buffer availability, the Enterprise Performance 15K HDD and Enterprise Turbo SSHD drives support:
• Concurrent port transfers—The drive supports receiving COMMAND, TASK management transfers on both ports at the same time.
• Full duplex—The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving frames on both ports.

Abort Task

Yes

Clear ACA

Yes

Clear task set

Yes

Abort task set

Yes

Logical Unit Reset

Yes

Query Task

Yes

Function complete

00

Invalid frame

02

Function not supported

04

Function failed

05

Function succeeded

08

Invalid logical unit

09