Description
SAS Interface and Data Transfer Rate
SAS (Serial Attached SCSI) is a high-speed data transfer interface that is commonly used in enterprise-level storage systems, such as the Dell Equallogic. The SAS interface allows for the connection of multiple hard drives to a host controller and enables high-speed data transfer between the hard drives and the host.
The SAS-12GBPS refers to the data transfer rate of the 61H3H Dell Equallogic 1.8TB 10K RPM SAS-12GBPS 2.5Inch SFF 4kn Hard Disk. It is the maximum speed at which data can be transferred between the hard disk and the host controller using the SAS interface. The SAS-12GBPS interface supports a maximum data transfer rate of 12 gigabits per second (GB/s), which is significantly faster than older SAS interfaces that support 6 GB/s or 3 GB/s. This high data transfer rate allows for fast access to stored data, which is important in high-performance computing applications.
Rotational Speed and Latency
Rotational speed, also known as spindle speed, refers to the speed at which the platters of a hard disk drive (HDD) rotate. It is measured in revolutions per minute (RPM). The 61H3H Dell Equallogic 1.8TB 10K RPM SAS-12GBPS 2.5Inch SFF 4kn Hard Disk has a rotational speed of 10,000 RPM. This is faster than the common 7200 RPM found in consumer-grade hard drives, which can result in faster data access times and improved performance.
Latency is the amount of time it takes for a hard drive to access a specific piece of data after receiving a request for it. It is measured in milliseconds (ms). Latency is affected by both the rotational speed of the drive and the position of the data on the platters. With a faster rotational speed, the head can access data more quickly, resulting in lower latency. Additionally, with the 10K RPM Hard Disk, the Latency is lower than 7200 RPM Hard Disk which help in improving performance.
Power Consumption and Reliability
Power Consumption refers to the amount of electrical power that a device or component requires to operate. It is usually measured in watts (W) or amperes (A). Hard drives, like the 61H3H Dell Equallogic 1.8TB 10K RPM SAS-12GBPS 2.5Inch SFF 4kn Hard Disk, consume a relatively low amount of power and typically have power specifications listed in their technical specifications. The power consumption of this hard drive is typically around 8.5W.
Reliability refers to the ability of a device or component to perform its intended function over a specified period of time without failure. Hard drives are typically rated for their reliability based on their Mean Time Between Failure (MTBF) and Annualized Failure Rate (AFR) ratings. The MTBF of a hard drive is the average time between failures, while the AFR is the percentage of drives that will fail within a year. The 61H3H Dell Equallogic 1.8TB 10K RPM SAS-12GBPS 2.5Inch SFF 4kn Hard Disk is designed with high-reliability and error recovery features that help to protect data and minimize downtime.
General Information
- Manufacturer: Dell
- MPN: 61H3H
- Type: Hard Disk Drive
- Sub-Type: SAS-12GBPS
- SKU: 61H3H
Technical Information
- Storage Capacity: 1.8 TB
- Spindle Speed: 10000 RPM
- Form Factor: 2.5 Inch
- Features: Advanced Format Technology-4kn
- Data Transfer Rate: 1200 MBPS External
- Compatible Bays: 1 X Hot-swap – 2.5Inch
Dimension and Weight
- Width: 2.8 Inch
- Depth: 3.9 Inch
- Height: 0.6 Inch
- Weight: 0.50 lbs
