requirements 15 environmental control 32 error

management 35 rates 15

errors 35

EU RoHS directive 33

F

FCC rules and regulations 3 features 8

interface 43 firmware 8

corruption 48

flawed sector reallocation 8

Format command execution time 12 function

complete, code 00 43

not supported, code 05 43 reject, code 04 43

G

Good status 54 gradient 29, 30 ground shift noise 59 grounding 41

H

HDA 40, 41

head and disc assembly (HDA) 7 head and disc assembly. See HDA heads

read/write data 11 heat removal 40 host equipment 41

hot plugging the drive 16 humidity 30

humidity limits 29

I

Idle Read After Write 38 inquiry data 49 installation 39 interface

commands supported 45 error rate 15

errors 16 illustrated 55 physical 55 requirements 43

intermediate/condition met/good status 54 intermediate/good status 54

internal data rate 11

internal defects/errors 35 internal drive characteristics 11 IRAW 38

J

jumpers 39

L

latency

average rotational 11 logical block address 13

logical block reallocation scheme 8 logical block size 8, 12

logical segments 13

M

maintenance 15

 

 

 

 

 

 

maximum delayed motor start 23,

24

maximum start current

23,

24

 

media description 8

 

 

 

 

 

Media Pre-Scan

37

 

 

 

 

 

 

miscellaneous feature support

 

 

Adaptive caching

54

 

 

 

Asynchronous event notification

54

Automatic contingent allegiance

54

Deferred error handling

54

 

 

Parameter rounding

54

 

 

 

Queue tagging

54

 

 

 

 

Reporting actual retry count

54

 

Segmented caching

54

 

 

 

SMP = 1 in Mode Select command 54

Synchronized (locked) spindle operation 54

Zero latency read

54

 

 

 

miscellaneous status support

 

 

 

ACA active

54

 

 

 

 

 

 

ACA active, faulted initiator

54

 

Busy

54

 

 

 

 

 

 

 

Check condition

54

 

 

 

 

Condition met/good

54

 

 

 

Good

54

 

 

 

 

 

 

 

Intermediate/condition met/good

54

Intermediate/good

54

 

 

 

Reservation conflict

54

 

 

 

Task set full

54

 

 

 

 

 

 

miscorrected media data

15

 

 

 

Mode sense

49,

51,

52,

 

 

data, table

53

 

mounting

41

 

 

 

 

 

 

 

holes

41

 

 

 

 

 

 

 

orientations

39

 

 

 

 

 

 

N

noise

74

Barracuda ES.2 SAS Product Manual, Rev. E

Page 77 Page 79
Page 78
Image 78
Seagate ST31000640SS, ST3750630SS, ST3500620SS manual
Page 77 Page 79

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.
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