Seagate ST9300453SS, ST9300653SS Dual port support, Scsi commands supported, Supported commands

Models: ST9300453SS ST9146653SS ST9146853SS ST9300553SS ST9300653SS ST9146753SS

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12.2Dual port support

Savvio 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 Savvio 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.

12.3SCSI commands supported

Table 7 lists the SCSI commands supported by Savvio drives.

Table 7:

Supported commands

 

 

 

 

 

Command name

Command code

Supported

 

 

 

Change Definition

40h

N

 

 

 

 

Compare

 

39h

N

 

 

 

 

Copy

 

18h

N

 

 

 

Copy and Verify

3Ah

N

 

 

 

Format Unit [1]

04h

Y

 

 

 

DPRY bit supported

 

N

 

 

 

DCRT bit supported

 

Y

 

 

 

STPF bit supported

 

Y

 

 

 

IP bit supported

 

Y

 

 

 

DSP bit supported

 

Y

 

 

 

IMMED bit supported

 

Y

 

 

 

VS (vendor specific)

 

N

 

 

 

 

Inquiry

 

12h

Y

 

 

 

Date Code page (C1h)

 

Y

 

 

 

Device Behavior page (C3h)

 

Y

 

 

 

Firmware Numbers page (C0h)

 

Y

 

 

 

Implemented Operating Def page (81h)

 

Y

 

 

 

Jumper Settings page (C2h)

 

Y

 

 

 

Supported Vital Product Data page (00h)

 

Y

 

 

 

Unit Serial Number page (80h)

 

Y

 

 

 

Lock-unlock cache

36h

N

 

 

 

 

Log Select

 

4Ch

Y

 

 

 

 

PCR bit

 

 

Y

 

 

 

 

DU bit

 

 

N

 

 

 

 

DS bit

 

 

Y

 

 

 

 

TSD bit

 

 

Y

 

 

 

 

ETC bit

 

 

N

 

 

 

 

TMC bit

 

 

N

 

 

 

 

48

Savvio 15K.3 SAS Product Manual, Rev. A

Page 56
Image 56
Seagate ST9300453SS, ST9300653SS, ST9300553SS, ST9146753SS Dual port support, Scsi commands supported, Supported commands