4.0PERFORMANCE CHARACTERISTICS

This section provides detailed information concerning performance-related characteristics and features of Constellation ES.3 drives.

4.1INTERNAL DRIVE CHARACTERISTICS

 

ST4000NM0023

ST3000NM0023

ST2000NM0023

ST1000NM0023

 

ST4000NM0043

ST3000NM0043

ST2000NM0043

ST1000NM0043

 

ST4000NM0113

ST3000NM0113

ST2000NM0113

ST1000NM0113

 

ST4000NM0063

ST3000NM0063

ST2000NM0063

ST1000NM0063

Drive capacity

4TB

3TB

2TB

1TB (fomatted, rounded off value)

Read/write data heads

10

8

5

3

Bytes/track

1,668,096

 

 

Bytes (average, rounded off values)

Bytes/surface

400,000

 

 

MB (unfomatted, rounded off values)

Tracks/surface (total)

320,800

 

 

Tracks (user accessible)

Tracks/in

305,000

 

 

TPI (average)

Peak bits/in

1,904,000

 

 

BPI

Areal density

578

 

 

Gb/in2

Internal data rate

2210

 

 

Mb/s (max)

Disk rotation speed

7200

 

 

RPM

Avg rotational latency

4.16

 

 

ms

4.1.1Format command execution time for 512-byte sectors (minutes)

 

4TB models

3TB models

2TB models

1TB models

Maximum (with verify)

917

693

456

263

 

 

 

 

Maximum (without verify)

455

347

228

132

 

 

 

 

Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect).

When changing sector sizes, the format times shown above may need to be increased by 30 minutes.

4.1.2General performance characteristics

Minimum sector interleave

1 to 1

Maximum Internal data rate*

2.21 Gb/s

Sustained transfer rate

83 to 175 MB/s **

SAS Interface maximum instantaneous transfer rate

600MB/s* per port

 

(dual port = 1200MB/s*)

Logical block sizes

 

512 (default), 520 or 528.

 

Read/write consecutive sectors on a track

Yes

Flaw reallocation performance impact (for flaws reallocated at format time using the

Negligible

spare sectors per sparing zone reallocation scheme.)

 

Average rotational latency

4.16ms

*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or from the host.

CONSTELLATION ES.3 SAS PRODUCT MANUAL, REV. B

9

Page 14
Image 14
Seagate ST1000NM0033 Performance Characteristics, Internal Drive Characteristics, General performance characteristics

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.