Index

Numerics

12 volt pins 59

5 volt pins 59

A

abort task set function 43 AC coupling 59

AC power requirements 23 ACA active status 54

ACA active, faulted initiator status 54 acoustics 32

active LED Out signal 59 actuator

assembly design 7 adaptive caching 54 AFR 8

air cleanliness 32 air flow 40

illustrated 40 altitude 30 ambient 29 ANSI documents

SCSI 5

Serial Attached SCSI 5 Areal Density 11 asynchronous event notification 54 audible noise 3

auto write and read reallocation programmable 8

automatic contingent allegiance 54 average idle current 23, 24 average rotational latency 11

B

Background Media Scan 37 backpanel 58

BMS 37 buffer

data 8 space 13

busy status 54

C

cache operation 13 cache segments 13 caching write data 13

Canadian Department of Communications 3 capacity

unformatted 11

check condition status

54

chemical pollutants 32

China RoHS directive

33

class B limit 3

 

clear ACA function 43

 

clear task set function

43

commands supported

45

condensation 30

 

condition met/good status 54 connector

illustrated 57 requirements 57

continuous vibration 32 cooling 40

corrosive environment 32

CRC

error 16 Current profiles 25 customer service 21

D

DAR 38

data block size modifing the 9

data heads read/write 11

data rate internal 11

data transfer rate 12 DC power 58

requirements 23

defect and error management 35 defects 35

Deferred Auto-Reallocation 38 deferred error handling 54 description 7

dimensions 34

disc rotation speed 11 drive 32

drive characteristics 11 drive mounting 34, 41 drive select 58

dual port support 44

E

electrical

description of connector 58 signal characteristics 59 specifications 23

electromagnetic compatibility 3 electromagnetic susceptibility 33 EMI requirements 3 environmental

limits 29

Barracuda ES.2 SAS Product Manual, Rev. E

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Seagate ST3500620SS, ST31000640SS, ST3750630SS manual Index

ST31000640SS, ST3500620SS, ST3750630SS specifications

Seagate has been a leading name in the storage industry for decades, and its range of enterprise-class hard drives showcases advanced technologies and robust performance. The Seagate ST3750630SS, ST3500620SS, and ST31000640SS are three notable models that cater to the demands of data centers and enterprises. Each model is designed with specific features that enhance reliability and efficiency, making them suitable for various applications.

The Seagate ST3750630SS is a 750GB 15K RPM Serial Attached SCSI (SAS) drive. It boasts a high-performance architecture that allows for fast data transfer rates, making it ideal for high-load environments such as transaction processing and video streaming. This drive features an MTBF of 1.6 million hours, ensuring minimal downtime due to failures. It also employs advanced error recovery and data protection mechanisms, including error correction codes (ECC), to maintain data integrity.

Meanwhile, the ST3500620SS offers a capacity of 500GB with a spinning speed of 15K RPM as well. This drive utilizes the SAS interface, providing users with improved bandwidth and connectivity compared to traditional SATA drives. The ST3500620SS is designed with a focus on high availability, featuring a robust design that supports multiple workloads simultaneously. Its quick access times enhance overall system performance, making it a preferred choice for high-performance computing applications.

The ST31000640SS is another enterprise-class offering, delivering 1TB of storage capacity. Like its counterparts, this drive operates at 15K RPM and utilizes the SAS interface, facilitating fast data processing and retrieval. It also incorporates a dual-port design which allows for redundancy and failover capabilities. This feature is critical in enterprise environments where data access and uptime are paramount. The drive's design is optimized for durability and longevity, best suited for environments that require 24/7 operation.

All three Seagate drives feature advanced technologies such as dual-stage actuators and thermal write technology, ensuring improved read and write performance, along with reduced power consumption. Additionally, they are built to endure the rigors of enterprise workloads, including heavy I/O operations and high access demands.

In summary, the Seagate ST3750630SS, ST3500620SS, and ST31000640SS are exemplary models that reflect the company’s commitment to quality and performance in enterprise storage solutions. With their high speeds, reliability, and extensive features, these drives are well-equipped to meet the challenges of modern data-driven environments.