Solid State Drive

Solid State Drive types

When it comes to computing, priorities are placed on storage and performance. The hard drive is often viewed as a major storage device. However, there is alternative hardware that can do a perfect job. People now use Solid State Drives as the main storage device for a wide range of technological needs.

An SSD is a nonvolatile storage media that stores data on solid-state flash memory. It emulates the hard disk drive by enhancing servers' capabilities and performance, desktop computers, and other devices. Users view them as the best option for responsiveness, increased disk space, and better performance.

SSD VS HDD

Solid State Drives and hard disk drives are somewhat similar in their physical specification. However, they store data in different ways. HDD stores data magnetically via spinning disk platters. It has an actuator arm with transducers that read and write data on the platter.

On the other hand, an SSD stores data in integrated circuits. It has no moving parts and does not require users to wait for platter movement. They are much smaller and more flexible than hard disk drive - HDDs. Having no physical moving parts and using electrical circuits makes solid state drives faster than their hard drive counterparts.

Their faster speed makes them more useful when carrying out storage-intensive tasks. Many SSDs also come with PCIe interfaces, which makes them faster than HDDs with SATA interfaces. Also, SSDs are generally more reliable than HDDs. This is because they have no moving parts, and vibration or friction does not affect them.

Data access with SSDs is faster, so they require less power. This results in longer battery life for servers and computers. HDDs, on the other hand, require more power because of their moving disk platters.

How Do Solid State Drives Work?

Solid State Drives read and write data on interconnected flash memory chips. They come with floating gate transistors (FGRs) that help them hold electrical charges. With the FGRs, SSDs retain information even when power is turned off.

The NAND flash memory stores the data of the SSD. They make use of four NAND cell technologies – single, multi, triple, and Quad-level cells. Single-level cells (SLC) hold one bit of data at a time.

Multi-level cells (MLC) can hold two bits of data per cell. They have more storage space than SLC. Triple-level cells (TLC) hold three bits of data per cell, offering more capacity than the SLC and MLC. The Quad-level cells (QLC) stores four bits of data, giving migrating electrons the most significant effect.

Types of SSDs

The types of solid state drives depend on the way they are used. Some of these devices are installed within the system hardware, while others are connected externally through ports. The common interfaces for SSD connection are:

  • PCIe and NVMe

Users make use of PCI Express (PCIe) to connect graphics cards and related high-performance peripherals. It is an interface with low latency and high bandwidth. Therefore, it is ideal for very fast communication between the SSD and the server.

Nonvolatile Memory Express standard (NVMe) offers higher input output per second. SSDs that use this connection type run at up to 4,000 MB/s.

  • SATA III and mSATA III

Serial Advanced Technology Attachment (SATA) is an older interface than the PCIe. Their signaling technology allows them to transfer data faster than traditional hard disk drive - HDDs. They have speeds of up to 600MB per second. SATA SSDs also offer the best compatibility and value than the HDD variants.

There are SSDs that are designed for business purposes. They can be external or internal, and they are convenient means of boosting PCs, desktop computers, gaming consoles, and servers.

  • SAS SSD

The Serial-Attached SCSI (SAS) version SSDs provide faster data transfer rates than the SATA SSDs. In general, a SAS SSD provides dual-port connection and builds in features to improve reliability, high error correction, low data latency, end to end data integrity, high signal quality on the cable or backplane which is a NAND flash-based storage and fit in HDDs slot of enclosures. A SAS solid-state drive bandwidth speeds 3Gbps, 6Gbps, and 12Gbps, there are two form factors 2.5 inches and 3.5 inches.

There are SSDs that are designed for business purposes. They can be external or internal, and they are convenient means of boosting PCs, desktop computers, gaming consoles, and servers.

Dell 400-AMCJ SAS 12GBPS SSD
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400-AMCJ 1.92TB Read Intensive Multi-Level Cell (MLC) Serial-Attached SCSI (SAS) 12GBPS 2.5inch Hot Plug Solid State Drive for Server | Made by Dell |...read more

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HPE P05980-X21 960GB SATA-6G SC G9 G10 SSD.
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P05980-X21 960GB 2.5in DS Serial Advanced Technology Attachment (SATA) 6GBPS SC Read Intensive Solid State Drive For Server | Made by HPE | Refurbished

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Dell GVTYD 1.6TB SSD SAS-12GBPS
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GVTYD 1.6 Terabyte(TB) Write Intensive Serial Attached SCSI (SAS) 12 Gigabits Per Second (GBPS) Triple Level Cell (TLC) Hot-plug Solid State Drive with Tray...read more

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HPE 789361-001 960GB SSD SATA 6GBPS
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789361-001 HPE 960GB Serial Advanced Technology Attachment (SATA) -6GBPS Read Intensive 3 SFF 2.5Inch TLC M.2 Solid State Drive with Smart Carrier | Made by...read more

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HPE P07442-001 400GB SSD SAS-12GBPS
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P07442-001 400 GB Serial-Attached SCSI (SAS)-6GBPS 2.5 inch Small Form Factor Internal Solid State Drive | Made by HPE | New Bulk Pack

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Cisco-UCS-SD960GH61X-EV-SSD
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UCS-SD960GH61X-EV 960 GB Serial-Attached SCSI (SAS)-6GBPS 2.5 Inch Hot-Swap Ultra-Fast Performance for Demanding Enterprise Operations | Made by Cisco |...read more

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HPE P26538-H21 960GB NVMe PCIe SSD
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P26538-H21 960 Gigabyte(GB) 2.5-inch NVMe Peripheral Component Interconnect Express (PCI-E) Read Intensive G10 G10.5 Hot Plug Solid State Drive for Server |...read more

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Seagate ZA960CV1A001 960GB SATA 6GBPS
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ZA960CV1A001 Serial Advanced Technology Attachment (SATA) 6GBPS BarraCuda Q1 960GB 3D QLC Nand 2.5inch 7MM Low Noise Level Solid State Drive | Made by...read more

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HPE P48123-001 480GB SSD
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P48123-001 480GB Serial Advanced Technology Attachment (SATA) 6GBPS M.2 Triple Level Cell (Tlc) Read Intensive Digitally Signed Firmware Solid State Drive |...read more

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342-6081 Dell 3GBPS Solid State Drive
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342-6081 800GB Serial Advanced Technology Attachment (SATA) 3GBPS 3.5 Inch Read Intensive F238F Y004G Solid State Drive for Server | Made by Dell | Refurbished

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