11.0INTERFACE REQUIREMENTS

This section partially describes the interface requirements as implemented on Constellation ES.3 drives. Additional information is provided in the SAS Interface Manual (part number 100293071).

11.1SAS FEATURES

This section lists the SAS-specific features supported by Constellation ES.3 drives.

11.1.1task management functions

Table 7 lists the SAS task management functions supported.

Table 7 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

 

 

11.1.2task management responses

Table 8 lists the SAS response codes returned for task management functions supported.

Table 8 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

 

 

11.2DUAL PORT SUPPORT

Constellation ES.3 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 Constellation ES.3 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.

CONSTELLATION ES.3 SAS PRODUCT MANUAL, REV. B

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Seagate ST1000NM0033 manual Interface Requirements, SAS Features, Task management functions, Task management responses
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ST1000NM0033 specifications

The Seagate ST1000NM0033 is a high-performance hard disk drive (HDD) designed specifically for enterprise applications. With a storage capacity of 1TB, it offers a balance of performance, reliability, and efficiency, making it suitable for data centers, cloud storage, and server environments. Built with Seagate's robust engineering, the ST1000NM0033 is ideal for handling heavy workloads and intensive data processes.

One of the standout features of this HDD is its rotational speed of 7200 RPM. This speed allows for quick data access and fast read/write operations, which is essential for data-intensive applications. The drive is equipped with 64MB of cache, further enhancing its efficiency by speeding up data retrieval for frequently accessed files.

Another key characteristic of the ST1000NM0033 is its SATA interface, which typically facilitates high-bandwidth data transfer rates. With a sustained data transfer rate of up to 160 MB/s, it ensures that large files, such as videos and databases, can be transferred swiftly, minimizing downtime and improving overall system performance.

The drive's durability is backed by Seagate’s Advanced Format technology, which enhances the format compatibility, storage efficiency, and reliability of the drive through improved error correction. With a mean time between failures (MTBF) rating of 1 million hours, users can trust the STA0033 to provide exceptional longevity and stability, critical in enterprise environments where data integrity is paramount.

Furthermore, the ST1000NM0033 supports various workload types due to its design optimized for multi-user environments. The drive can handle up to 180TB/year workload rate, making it capable of supporting applications with high data demand.

Environmentally, Seagate ensures that this model is energy efficient, contributing to reduced power consumption in enterprise settings. The drive operates effectively within a specified temperature range, ensuring that it remains operational under different environmental conditions.

In summary, the Seagate ST1000NM0033 is an excellent choice for businesses seeking a reliable, high-capacity HDD with robust performance features. Its combination of speed, efficiency, durability, and capacity positions it as a strong contender in the enterprise storage solutions market. With its extensive feature set, it continues to cater to the demanding needs of modern data centers and enterprise applications.
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