ST91000642SS SEAGATE Constellation 1TB 6GBPS-SAS 7.2K RPM 2.5Inch 64MB HDD

Overview of SEAGATE ST91000642SS 1TB SAS Hard Drive

The SEAGATE ST91000642SS delivers robust storage performance for enterprise-level environments requiring reliability, efficiency, and speed. With a 2.5-inch form factor, 6GBPS-SAS interface, and 64MB cache, it provides consistent data throughput and dependable durability for intensive workloads.

Technical Specifications of ST91000642SS

• Model Number: ST91000642SS
• Interface Type: 6GBPS-SAS
• Cache Buffer: 64MB
• Storage Capacity: 1TB
• Form Factor: 2.5-Inch
• Areal Density: 417Gb/in²
• Guaranteed Sectors: 1,953,525,168

Performance Characteristics

This drive is optimized for enterprise servers and high-demand applications where speed and reliability are critical.

• Spin Speed: 7,200 RPM
• Sustained Data Transfer: 115 MB/s
• Average Latency: 4.16 ms
• Random Read Seek Time: 7.5 ms
• Random Write Seek Time: 8.5 ms
• I/O Data Transfer Rate: 600 MB/s

Physical Dimensions and Weight

The compact 2.5-inch design of the SEAGATE ST91000642SS allows it to fit seamlessly into modern storage infrastructures without compromising on performance.

• Height: 15.00 mm (0.591 in)
• Width: 70.10 mm (2.760 in)
• Length: 100.45 mm (3.955 in)
• Weight: 200 g (0.440 lb)

Key Features and Technical Specifications

Capacity and Storage Efficiency

With a total capacity of 1TB, the SEAGATE Constellation ST91000642SS offers dependable storage for mission-critical data, application hosting, and high-volume transaction processing. This drive supports enterprise workloads by providing large data storage within a compact 2.5-inch form factor.

Interface and Data Transfer Rate

The 6Gbps SAS interface ensures fast, reliable data transfer and backward compatibility with older SAS standards. This makes the hard drive a versatile choice for upgrading or expanding existing infrastructures, while still delivering optimal throughput and minimal latency in demanding applications.

Rotational Speed and Cache

Featuring a 7,200 RPM spindle speed combined with a 64MB cache buffer, this HDD balances strong performance with consistent responsiveness. It is engineered to handle both sequential and random workloads effectively, allowing for smooth data access in multitasking environments.

Form Factor and Space Optimization

Its compact 2.5-inch design makes it suitable for high-density storage systems where multiple drives are required in a limited chassis. This not only reduces power consumption but also enables efficient space utilization in racks and servers.

Enterprise-Class Reliability

Durability and Workload Handling

Built for continuous operation, the ST91000642SS is capable of handling enterprise-level workloads with minimal risk of failure. It is manufactured to meet the demands of 24/7 operations, supporting data-intensive environments where reliability is critical.

Mean Time Between Failures (MTBF)

This series is engineered with a high MTBF rating, providing confidence in long-term usage and reducing the likelihood of unexpected downtime. Enterprise users benefit from predictable and consistent performance across heavy workloads.

Error Correction and Data Integrity

Advanced error correction technology enhances the drive’s ability to safeguard data integrity. This ensures that mission-critical information is preserved even in the event of read/write challenges, thereby minimizing the risk of corruption or loss.

Fast Access and High Responsiveness

The combination of SAS interface, 7.2K RPM speed, and large cache buffer enables fast seek times and low latency. Users experience quicker data retrieval and superior responsiveness, making it suitable for workloads that require frequent read/write operations.

Compatibility and Integration

System Compatibility

The ST91000642SS 1TB model integrates seamlessly with various enterprise hardware platforms, storage arrays, and server backplanes. Its SAS interface supports dual porting, offering redundancy and failover protection for maximum uptime.

Backward Compatibility

This drive’s backward-compatible SAS technology makes it possible to integrate with existing infrastructure without the need for costly system overhauls. Organizations can gradually scale their storage capabilities without replacing all legacy components.

Hot-Swap Capability

In many enterprise environments, the ST91000642SS can be used in hot-swappable drive bays, ensuring that replacement or upgrades can be performed without disrupting ongoing operations.

Energy Efficiency and Cooling Advantages

Low Power Consumption

The 2.5-inch form factor naturally consumes less power than larger alternatives. This drive optimizes energy usage, reducing operational costs in large-scale deployments where hundreds or thousands of drives may be installed.

Reduced Heat Output

Thanks to efficient design and lower heat output, cooling requirements are significantly minimized. This contributes to longer hardware lifespan and reduced overhead in data centers.

Eco-Friendly Design

Seagate incorporates advanced design methodologies that minimize environmental impact while maintaining high performance standards, making this drive suitable for organizations that prioritize sustainable IT infrastructure.

Enterprise Server Storage

This drive is perfect for enterprise server environments that demand consistent read/write operations for business-critical applications. It supports multiple simultaneous users and high IOPS environments.

Cloud Storage and Virtualization

Cloud environments and virtualized infrastructures benefit from the drive’s scalable architecture, offering dependable support for large numbers of concurrent users and virtual machines.