Dell ST91000640SS Constellation.2 1TB Hard Drive SAS-6GBPS Refurbished

In the ever-evolving landscape of technology, data storage solutions play a crucial role in ensuring efficient and reliable performance for various computing systems. One such storage device that has garnered attention is the Dell ST91000640SS Constellation.2 1TB Hard Disk Drive. In this comprehensive review, we will delve into the key features and specifications of this hard disk drive, shedding light on its capabilities and potential applications. The Dell ST91000640SS is a 1TB Hard Disk Drive designed to meet the demands of modern data-intensive applications. It boasts a compact 2.5-inch form factor, making it suitable for internal use in a variety of computing environments. As we explore its features, it's important to note that this hard disk drive is equipped with a 64 Megabytes (MB) buffer, enhancing its ability to handle data efficiently.

At the core of the Dell ST91000640SS is its impressive 1TB storage capacity. This ample storage space makes it well-suited for a range of applications, from personal computing to enterprise-level storage solutions. Whether you're a casual user with multimedia storage needs or an organization managing vast datasets, the 1TB capacity ensures that you have ample room for your data.

One of the critical performance indicators for hard disk drives is their rotational speed, measured in Revolutions Per Minute (RPM). The Dell ST91000640SS operates at 7,200 RPM, indicating a high-speed rotation of its internal disks. This feature is particularly advantageous for applications requiring quick access to data, such as gaming, video editing, and database management.

The Dell ST91000640SS utilizes Serial-Attached SCSI (SAS) as its interface standard. SAS is known for its reliability and scalability, making it a popular choice for enterprise storage solutions. The use of SAS ensures a robust and efficient connection between the hard disk drive and the host system, facilitating the seamless transfer of data.

In the realm of data storage, the speed at which information can be transferred is of paramount importance. The Dell ST91000640SS supports a data transfer speed of 6 Gigabytes Per Second (Gb/s). This high-speed transfer rate is beneficial for tasks that involve large file transfers, backup operations, and real-time data access. It contributes to overall system performance, reducing latency and improving responsiveness.

The inclusion of a 64 Megabytes (MB) buffer in the Dell ST91000640SS is a significant feature that enhances its data handling capabilities. The buffer serves as a temporary storage area for frequently accessed data, reducing the time it takes to retrieve information. This, in turn, contributes to improved overall system responsiveness and efficiency.

The compact 2.5-inch form factor of the Dell ST91000640SS makes it well-suited for internal use in various computing devices. This form factor is commonly found in laptops, servers, and storage arrays. The smaller size not only contributes to space savings but also allows for more flexible installation options, making it adaptable to different system configurations.

Reliability is a crucial factor when evaluating hard disk drives, especially in environments where data integrity is paramount. The Dell ST91000640SS Constellation 2 is designed with reliability in mind, featuring robust construction and advanced error correction mechanisms. Its durability ensures consistent performance, making it suitable for mission-critical applications where downtime is not an option.

• Enterprise Storage Systems The high capacity and reliability make it suitable for enterprise-level storage solutions where large volumes of data need to be stored and accessed efficiently.
• Datacenters In data center environments, the combination of the SAS interface, high RPM, and large buffer size contribute to seamless data management and quick access.
• Gaming and Multimedia The 7,200 RPM rotational speed and high data transfer rate make it a favorable choice for gaming enthusiasts and multimedia professionals who require fast and reliable storage.
• Business Workstations The 1TB storage capacity and efficient data handling capabilities cater to the needs of business workstations dealing with diverse applications and file types.

A hard drive with a rotational speed of 7200 RPM (revolutions per minute) is generally considered to be a "high-performance" drive, as it can access data stored on its platters more quickly than drives with slower RPMs. This can make the drive more responsive when you are working with large files, or when you are running multiple programs at the same time. 7200 RPM drives are typically used in applications where fast data access is important, such as in servers, gaming systems, and high-end desktop computers.

A SAS (Serial Attached SCSI) hard drive is a type of high-performance storage device that uses a serial interface to transfer data. It is typically used in servers and other enterprise-class computing environments. SAS drives offer several advantages over traditional SATA drives, including faster data transfer speeds, higher reliability, and the ability to connect multiple drives to a single controller.

The term "SAS-6Gbps" refers to the maximum data transfer rate that the drive is capable of achieving over its SAS interface. A drive with a 6Gbps SAS interface can transfer data at a rate of up to 6 gigabits per second. This is significantly faster than the data transfer rates of SATA drives, which are limited to 3Gbps or 6Gbps, depending on the generation of the interface.

Buffer Size 64 Megabytes (MB)

The ST91000640SS is equipped with a sizable 64 Megabytes (MB) buffer or cache. The buffer serves as temporary storage for frequently accessed data, enhancing overall system performance by reducing latency during read and write operations. A larger buffer size is particularly advantageous in scenarios where quick access to data is essential.

Internal Installation

Designed for internal use, this hard drive is intended to be installed within a compatible computing device, such as a laptop, desktop, or server. Its 2.5-inch form factor allows for easy integration into systems with limited space, offering flexibility in deployment.

• Manufacturer: HP
• Part Number or SKU# ST91000640SS
• Product Type: Hard Disk Drive

• Capacity: 1 TB
• Interface Type: Serial Attached SCSI 2
• Buffer Size: 64 MB

• Drive Transfer Rate: 600 MBPS External
• Seek Time: 8.5 MS Average
• Track-to-Track Seek Time: 0.7 MS
• Average Latency: 4.16 MS
• Spindle Speed: 7200 RPM

• Interfaces: 1 x Serial Attached SCSI 2
• Compatible Bays: 1 x internal - 2.5 Inches

In summary, the Dell ST91000640SS Constellation.2 1TB Hard Disk Drive is a formidable storage solution that combines ample capacity with high performance. From its 1TB storage capacity to the 7.2K RPM speed, SAS interface, 64MB buffer, and compact 2.5-inch form factor, this hard drive ticks all the boxes for users seeking reliability and efficiency.