Lenovo 01DC437 2TB SAS 7.2K 2.5\

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Lenovo 01DC437 2TB SAS 7.2K 2.5" SFF Hot Swap HDD

  • Part Number : 01DC437
  • Brand : LENOVO

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LENOVO 01DC437 Manufacturer
Manufacturer
Lenovo
LENOVO 01DC437 Form Factor
Form Factor
2.5" SFF
LENOVO 01DC437 Capacity
Capacity
2TB
LENOVO 01DC437 Spindle Speed
Spindle Speed
7.2K
LENOVO 01DC437 Interface
Interface
SAS
LENOVO 01DC437 Data Transfer Rate
Data Transfer Rate
12G

Full LENOVO 01DC437 Specifications

Brand Lenovo
Form Factor 2.5" SFF
Capacity 2TB
Spindle Speed 7.2K
Interface Type SAS
Data Transfer Rate 12G
Workload Nearline (NL)
Cache 128MB

LENOVO 01DC437 Frequently Asked Questions

What does it mean that a hard drive has a form factor of 2.5" SFF?

In the context of server hard drives, "2.5" SFF" refers to the physical form factor of the hard drive. SFF stands for "Small Form Factor," indicating that the hard drive has a smaller size compared to traditional 3.5" form factor drives commonly used in desktop computers and some servers.


The 2.5" SFF hard drive form factor was initially introduced in the early 1990s, but it gained significant prominence in the mid-2000s as a result of advancements in server technology. This form factor was specifically designed to address the needs of enterprise servers and data centers, offering several important advantages:


  1. Increased Density: The smaller physical size of 2.5" SFF drives allows for higher storage density within server racks. By using smaller drives, more drives can be installed in the same amount of space, enabling greater storage capacity per server or rack.

  2. Improved Power Efficiency: 2.5" SFF drives generally consume less power compared to their larger 3.5" counterparts. This power efficiency is beneficial for data centers and servers that require large numbers of drives, as it helps reduce overall power consumption and cooling requirements.

  3. Enhanced Performance: Smaller form factor drives often have faster access times and lower latency, which can contribute to improved performance in terms of data access and retrieval. This is particularly relevant in environments where high-speed data processing and input/output operations are crucial, such as in enterprise-level databases and virtualization environments.

  4. Better Reliability: Due to their smaller size, 2.5" SFF drives are less prone to vibrations and mechanical stress, which can be beneficial in high-density server environments where drives are closely packed. Additionally, they often have better resistance to shock and are designed with features that enhance reliability in demanding server operations.


Overall, the introduction of 2.5" SFF hard drives was an important advancement in server technology, as it provided increased storage density, improved power efficiency, enhanced performance, and better reliability for enterprise-level servers and data centers.

What does it mean if a hard drive runs at 7200 RPM?

7200 RPM, in the context of server hard drives, refers to the speed at which the drive's platters rotate. This specification signifies the number of revolutions per minute. When this feature was initially introduced is in the late 1980s and early 1990s. It was a significant advancement in technology at the time, as previous hard drives had lower rotational speeds, typically around 5400 RPM or lower.


The introduction of 7200 RPM drives brought about several important improvements. Firstly, the faster rotational speed allowed for quicker access to data and faster transfer speeds. This was particularly valuable in server environments where efficient data processing and high-speed data transfer were essential.


Secondly, the enhanced performance of 7200 RPM drives resulted in reduced latency and improved overall system performance. Servers handling large volumes of data and running resource-intensive applications greatly benefited from the faster read and write speeds.


Furthermore, the higher RPM facilitated smoother multitasking capabilities, enabling servers to handle multiple simultaneous operations more effectively. This was particularly advantageous for servers serving multiple users or running complex applications concurrently.


Additionally, the evolution of 7200 RPM drives also saw an increase in storage capacity over time. This combination of higher rotational speed and larger storage capacities provided server administrators with more space to store critical data.


While technology has continued to advance, with the emergence of solid-state drives (SSDs) and even faster rotational speeds, the introduction of 7200 RPM drives marked a significant milestone in the development of hard drive technology. It delivered improved performance, faster data access, and increased storage capacity, catering to the demands of server environments.

What does it mean if a hard drive has an interface of SAS?

The term "SAS Interface" refers to Serial Attached SCSI (SAS), which is a technology that facilitates communication between computer systems and storage devices like hard drives. It is a serial interface that establishes point-to-point connections, offering high-speed, dependable, and scalable connectivity.


The SAS interface was first introduced in 2004 as a successor to the older Parallel SCSI standard. It represented a significant technological advancement for several reasons:


  1. Enhanced Speed and Bandwidth: SAS provided notably faster data transfer rates compared to Parallel SCSI. Initially offering speeds of up to 3 Gbps per lane, subsequent advancements increased it to 6 Gbps and 12 Gbps per lane. This boosted bandwidth facilitated quicker data access, resulting in improved overall system performance.

  2. Scalability: SAS supports point-to-point connections, allowing each storage device to have its dedicated link to the host system. This efficient and independent data transfer capability minimizes potential bottlenecks within the system. Additionally, SAS permits daisy-chaining of multiple devices, enabling seamless expansion of storage capacity while maintaining optimal performance.

  3. Compatibility: SAS interfaces are backward compatible with SATA (Serial ATA) drives, enabling SAS controllers to work with both SAS and SATA drives simultaneously. This flexibility is crucial for systems that require accommodating different drive types or transitioning gradually from SATA to SAS drives.

  4. Reliability and Redundancy: SAS incorporates features such as error detection, error correction, and comprehensive error reporting capabilities. It also supports various RAID configurations, providing data protection and redundancy options to mitigate the risk of data loss in the event of drive failures.

  5. Enterprise-grade Features: SAS was primarily designed for enterprise environments demanding high-performance storage solutions. It encompasses advanced features like multipath I/O (Input/Output), which establishes redundant paths between the host and storage devices, enhancing system reliability and availability.


In summary, the advent of SAS interface technology brought significant improvements in speed, scalability, reliability, and compatibility, making it a pivotal advancement in server storage technology.

What does it mean if a drive has a workload of Nearline (NL)?

"Nearline" is a term often used in the context of hard drives, specifically to describe a type of storage that falls between online and offline storage solutions. It's not commonly associated with solid state drives (SSDs), but rather with traditional spinning hard disk drives (HDDs).


For HDDs, "Nearline" refers to a type of storage that offers a compromise between the high performance and low latency of online storage and the cost-effectiveness of offline or archival storage. Nearline HDDs are designed to provide relatively quick access to data while still being more cost-effective than high-performance drives optimized for constant online access.


If "Nearline SSDs" has emerged as a term or technology after my last update, I won't have information about it. SSD technology has been evolving rapidly, and new terms and concepts might have been introduced since then. If you're looking for the most up-to-date information, I recommend checking with the latest sources or manufacturer documentation.

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