Seagate ST1200MM0037 Computer Drive User Manual


 
SEAGATE ENTERPRISE PERFORMANCE 10K HDD V7 PRODUCT MANUAL, REV. C 37
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.
11.1.2 Task management responses
The table below lists the SAS response codes returned for task management functions supported.
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 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 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.
Table 3 SAS task management functions supported
Task name Supported
Abort Task Yes
Clear ACA Yes
Clear task set Yes
Abort task set Yes
Logical Unit Reset Yes
Query Task Yes
Table 4 Task management response codes
Function name Response code
Function complete 00
Invalid frame 02
Function not supported 04
Function failed 05
Function succeeded 08
Invalid logical unit 09