9EF248-050 Dell 1TB 7.2K RPM SAS 3GBPS Hard Drive | New Bulk Pack

A 1TB 7.2K RPM SAS 3Gbps hard drive is a type of storage device that provides a large amount of storage capacity and moderate data transfer speeds. The specifications of this hard drive are as follows:

• Capacity: 1TB (terabyte)
• Rotational Speed: 7.2K RPM (revolutions per minute)
• Interface: SAS (Serial Attached SCSI) 3Gbps
• Form Factor: 3.5-inch
• Average Seek Time: 8.5ms
• Cache: 16MB or more
• Workload rate limit: 550TB per year
• MTBF (Mean Time Between Failures): typically around 1.2 million hours

This hard drive is designed for use in enterprise-level servers and storage systems where moderate access to large amounts of data is needed. The 7.2K RPM speed provides slower data access times compared to 15K RPM hard drives, but it also consumes less power and generates less heat. The SAS 3Gbps interface provides a faster data transfer rate than SATA hard drives, making it more suitable for high-performance storage applications.

It’s important to note that SAS 3Gbps is an older interface and it’s been replaced by SAS 6Gbps and SAS 12Gbps. However, it’s still widely used in older systems.

The performance and reliability of a 1TB 7.2K RPM SAS 3Gbps hard drive will depend on several factors such as the quality of the hard drive, the operating conditions, and the usage patterns.

1. Performance: The 7.2K RPM speed of this hard drive provides slower data access times compared to 15K RPM hard drives, but it also consumes less power and generates less heat. The SAS 3Gbps interface provides faster data transfer rates than SATA hard drives, making it more suitable for high-performance storage applications. However, it’s an older interface and it’s been replaced by SAS 6Gbps and SAS 12Gbps, which provide higher performance.
2. Reliability: The 1TB 7.2K RPM SAS 3Gbps hard drive is designed for use in enterprise-level servers and storage systems, and tend to be more reliable and durable than consumer-grade hard drives. The MTBF (Mean Time Between Failures) of this type of hard drive is typically around 1.2 million hours. However, it’s important to note that all hard drives are subject to wear and tear over time and will eventually fail. It’s a good practice to have a backup of your important data and a plan in place for replacing the hard drive when it reaches the end of its useful life.
3. Quality of the Hard Drive: High-quality hard drives from reputable manufacturers tend to be more reliable and durable than low-quality hard drives.
4. Operating Conditions: Hard drives are sensitive to temperature, humidity, and vibration. Keeping the hard drive in a cool, dry, and stable environment can help to increase its reliability and durability.
5. Usage Patterns: Hard drives that are used for heavy workloads, such as running large databases or video rendering, will experience more wear and tear than those used for light workloads, like basic file storage.

The rotational speed and latency of a 1TB 7.2K RPM SAS 3Gbps hard drive are two important factors that affect the overall performance of the hard drive.

1. Rotational Speed: The rotational speed of a hard drive is measured in revolutions per minute (RPM). The 1TB 7.2K RPM SAS 3Gbps hard drive has a rotational speed of 7,200 RPM, which is slower than 15K RPM hard drives but faster than 5400 RPM hard drives. Slower rotational speeds result in slower data access times, but also in less power consumption and less heat generation.
2. Latency: Latency is the time it takes for the hard drive’s read/write head to move to the correct location on the disk platter to access the data. The average seek time of this hard drive is around 8.5ms, which is the time it takes for the head to move to the correct location on the disk. The average latency is around 3ms
3. Access Time: Access time is the total time it takes to access data on the hard drive, including the seek time, the rotational delay, and the transfer time.

Latency and access time are important factors to consider when choosing a hard drive for a specific application. Applications that require fast access to small amounts of data, such as a database, would benefit from a hard drive with a faster rotational speed and lower latency. Applications that require large amounts of data storage, such as video editing or file storage, would benefit from a hard drive with a larger storage capacity.

It’s important to note that a hard drive’s specifications are not the only factor that determines its performance. Other factors such as the system’s CPU, memory, and I/O controllers also play a role in determining the overall performance of the hard drive.