5.0Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Sav- vio drives.

5.1Internal drive characteristics

 

ST9300603SS

ST9146803SS

 

 

ST9300503SS

ST9146703SS

 

 

ST9300403SS

ST9146603SS

 

Drive capacity

300

146.8

Gbytes (formatted, rounded off value)

Read/write data heads

4

2

 

Bytes per track

656,985

656,985

Bytes (average, rounded off values)

Bytes per surface

74,915

74,915

Mbytes (unformatted, rounded off value)

Tracks per surface (total)

113,829

113,829

Tracks (user accessible)

Tracks per inch

190,000

190,000

TPI (average)

Peak bits per inch

1,458,000

1,458,000

BPI

Areal density

252

252

Gbit/in2

Internal data rate

1578 - 850

1578 - 850

Mbits/sec (variable with zone)

Disc rotation speed

10k

10k

rpm

Avg rotational latency

3.0

3.0

msec

5.2Seek performance characteristics

See Section 12.4.1, "SAS physical interface" on page 58 and the SAS Interface Manual (part number 100293071) for additional timing details.

5.2.1Access time

 

 

Including controller overhead1, 2

Not including controller overhead1,2

 

 

(msec)

 

(msec)

 

 

 

Read

Write

Read

Write

Average

Typical3,4

4.2

4.6

4.0

4.4

Single track

Typical3,4

0.4

0.7

0.4

0.7

Full stroke

Typical3,4

7.68

8.15

7.48

7.95

1.Execution time measured from receipt of the Command to the Response.

2.Assumes no errors and no sector has been relocated.

3.Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of drives.

4.Access time = controller overhead + average seek time and applies to all data transfer commands. Access to data = access time + latency time.

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Savvio 10K.3 SAS Product Manual, Rev. G

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Seagate ST9300603SS manual Performance characteristics, Internal drive characteristics, Seek performance characteristics

ST9146803SS, ST9300603SS, ST9300503SS, ST9146603SS, ST9146703SS specifications

Seagate has long been a key player in the storage technology industry, and its enterprise-class hard drives such as the ST9300503SS, ST9300403SS, ST9146603SS, ST9146803SS, and ST9146703SS stand out for their performance, reliability, and innovative features. Designed primarily for use in data centers and server environments, these drives offer a range of specifications suited for high-demand applications.

The Seagate ST9300503SS is a 300GB 2.5-inch SAS (Serial Attached SCSI) hard drive that operates at 10,000 RPM, which is essential for ensuring rapid data access. It provides a data transfer rate of 6 Gb/s and features Seagate's AgileArray technology, which enhances RAID performance and reliability by improving data integrity and optimizing power consumption. The drive is also designed to withstand the rigors of enterprise use, boasting a mean time between failures (MTBF) rating of 1.6 million hours.

In contrast, the ST9300403SS offers a similar 300GB capacity and speed, but with slight variations in features that make it better suited for specific applications. This drive also supports SAS 2.0 and includes features that enhance error recovery and data protection.

The ST9146603SS is another powerhouse, providing 146GB of storage. Operating at the same high spindle speed of 10,000 RPM, it is optimized for low-latency performance. This makes it highly suitable for transactional applications and environments where quick access to data is crucial. Like its counterparts, this drive is built with robust technologies that ensure reliable operation and enhanced data security.

The ST9146803SS bumps up the storage capacity to 300GB while maintaining the same impressive speed and performance features. Its incorporation of Seagate’s SeaTach technology allows for advanced communication protocols, which facilitate faster data transfers and lower latency.

Finally, the ST9146703SS also offers 146GB of storage and is known for its energy efficiency features that reduce operational costs in large-scale deployments. All these drives support a wide range of operating systems, making them versatile picks for businesses looking to upgrade their storage solutions.

Overall, the Seagate ST9300503SS, ST9300403SS, ST9146603SS, ST9146803SS, and ST9146703SS are essential components in any enterprise environment, delivering high performance, reliability, and advanced technology features that meet the critical demands of modern data storage.