11.0 Interface Requirements; Sas Features; Task Management Functions; Task Management Responses - Seagate ST2400MM0129 Product Manual

11.0 Interface requirements

This section partially describes the interface requirements as implemented on Seagate Enterprise Performance 10K HDD drives.
Additional information is provided in the SAS Interface Manual (part number 100293071).
11.1

SAS features

This section lists the SAS-specific features supported by Seagate Enterprise Performance 10K HDD drives.
11.1.1

Task management functions

The table below lists the SAS task management functions supported.
Table 7 SAS task management functions supported
Task name
Abort Task
Clear ACA
Clear task set
Abort task set
Logical Unit Reset
Query Task
11.1.2

Task management responses

The table below lists the SAS response codes returned for task management functions supported.
Table 8 Task management response codes
Function name
Function complete
Invalid frame
Function not supported
Function failed
Function succeeded
Invalid logical unit
11.2

Dual port support

Seagate Enterprise Performance 10K HDD 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 12Gb/s or the first port can run at 12Gb/s
while the second port runs at 3Gb/s.) The supported link rates are 3.0, 6.0 or 12.0 Gb/s.
Subject to buffer availability, the Seagate Enterprise Performance 10K HDD 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.
Seagate Enterprise Performance 10K HDD v9 Product Manual, Rev. D (Draft 2)
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Response code
00
02
04
05
08
09
49