Benefits of ATP‘s Dynamic Over-Provisioning for SSDs

2023-08-30 ATP Blogs

Determining the right configurations that will address various workloads is essential to the operational health of an enterprise storage drive. Often, manufacturers make pre-set configurations that do not have the flexibility to be altered according to actual needs, resulting in compromised performance and higher costs down the road.


The ATP Dynamic Over-Provisioning solution (Dynamic OP solution) breaks the mold by giving users the freedom and flexibility to configure SSDs according to the actual workloads of specific applications. Through ATP's simple software, users can freely and easily set the OP percentage from 7% to 14%, 28%, 50%, and above to better suit their requirements.

Over-Provisioning Basics

When solid state drives (SSDs) ship out, they usually come with a fixed reserved free space that is not visible to and cannot be used by the user. Over-provisioned space is the storage capacity of a drive specifically retained for controller features like garbage collection and trim. Manufacturers typically set OP space at 7% for client applications or 28% for enterprise storage applications.


Traditional hard disk drives (HDDs) and SSDs write and erase data differently. When an entry is deleted from an HDD, it does not actually disappear. The sector that data occupies does not get freed up. Instead, only when new data physically overwrites the old data will it become truly gone.


SSDs, on the other hand, read and write data on "pages." Pages are stacked to one another on a block. While data may be read and written at the page level, data may only be erased at the block level. Data cannot be overwritten. For a block to be freed up and new data to be written on it, data on all pages in that block must be erased at one time.


To clear out invalid data, SSDs employ two important processes called garbage collection and trim. Garbage collection is the moving of valid data to other blocks so the original block can be erased for use. Trim allows a host to inform the SSD which blocks of data are no longer in use and may be utilized by new data. The constant relocating, rewriting, and erasing contribute to the SSD's higher workload and ultimately, its degradation.


Measuring SSD Performance and Endurance

The write amplification index (WAI) is the ratio of the total gigabytes written by the host to the NAND. As discussed above, SSD blocks must be erased first before they can be written to. For write-intensive operations, more extra writes are needed, thus causing data written on the SSD to be greater than what the host had intended to write. Consequently, the greater workload causes performance to suffer.


Terabytes written (TBW) is another way to gauge SSD endurance and performance. TBW refers to the total amount of data that can be written onto a storage device before it is bound to fail. A higher TBW means a longer SSD usage life.


The Optimization Challenge

Embedded applications require a varied range of tasks.  Write-intensive applications, for example, naturally increase WAI. In order to decrease WAI and increase the life span of the SSD with higher TBW, a higher OP (less usable storage) should be implemented to ensure stability, improve performance, and extend SSD usage.


Read-intensive applications, on the other hand, require less endurance so high WAI and SSD degradation are not much of a concern, thus a lower OP (higher usable storage) may be implemented.


Most SSDs in the market come with a fixed OP percentage, giving no flexibility for users to evaluate workloads and optimally configure SSDs for the best possible performance and endurance.


Benefits of the ATP Dynamic Over-Provisioning Solution

The ATP Dynamic Over-Provisioning solution ATP gives users the freedom and flexibility to configure SSDs according to the actual workloads of specific applications.


Performance Optimization

Engineers at ATP conducted thorough testing to determine how different OP percentages can affect SSD performance and endurance, and have found that applications with write-intensive workloads can greatly benefit from high OP percentages.


  1. Random write performance. A low 7% OP may show around a 90% drop in 4K random write speed after prolonged testing. Setting a higher OP percentage may lead to better, more consistent performance compared with a lower OP percentage.


  2. Write amplification index (WAI).  OP percentage is inversely proportional to WAI — a higher OP percentage helps reduce WAI and improves performance.


  3. Terabytes written (TBW). OP percentage is directly proportional to TWB — a higher OP percentage demonstrates better endurance.


Cost Optimization

At the outset, it would appear that SSDs with lower OP percentage mean lower cost, as it provide more capacity for users. In reality, however, the higher cost will be felt in the long term. A lower OP percentage, although offering more capacity, leads to faster SSD degradation and more frequent drive replacements. High OP settings are for users who are willing to trade off capacity for extra performance and endurance.


Flexibility

By enabling users to configure the OP setting based on actual needs, the ATP Dynamic Over-Provisioning solution maximizes the performance and life span of the SSD, translating to greater productivity and savings in the long term. For more information, visit the ATP website or contact an ATP Distributor/Representative in your area.

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ATP  -  M.2 2280 NVME SOLID STATE MODULES,M.2 2280 NVME固态模块,第三代NVME M.2 2280/2242/2230固态硬盘,NVME固态硬盘,GEN 3 NVME M.2 2280 / 2242 / 2230 SSD,NVME SSDS,FT960GP38AG8BPC,N750PI,FT480GP38ANDBFC,FT120GP38AG8BPC,FT480GP38AG8BPC,FT480GP34ANDBFC,FT960GP38AG8BPI,FT240GP38AG8BPC,FT120GP38ANDBFC,N700PC,FT240GP38AG8BPI,FT120GP38AG8BPI,N600SC,N650SI,N600VI,FT960GP34ANDBFC,N700PI,FT240GP38ANDBFC,N600SI,FT120GP34ANDBFC,N650SC,FT240GP34ANDBFC,N600VC,FT480GP38AG8BPI

102024  - 数据手册  - v1.1 代理服务 技术支持 采购服务 查看更多版本

Bringing 3D TLC NAND Flash Endurance and Reliability Closer to SLC/MLC

The advent of 3D NAND technology allowed for more relaxed lithography and broke planar NAND limitations. By stacking cells vertically, 3D NAND flash increased drive reliability and endurance. ATP breaks new ground with its new 3D TLC-based SATA SSDs.

2022-01-15 -  新技术 代理服务 技术支持 采购服务

PCIe®Gen 4 NVMe M.2 2280 SSD专业存储和内存解决方案的全球领导者

该资料介绍了PCIe Gen 4 NVMe M.2 2280 SSD,具有高速读写性能、数据保护、加密和安全特性。产品支持多种容量和温度范围,适用于数据记录、监控和成像系统。资料还提供了详细的技术规格、性能参数和订购信息。

ATP  -  PCIE®GEN 4 NVME M.2 2280固态硬盘,PCIE® GEN 4 NVME M.2 2280 SSD,NVME™ M.2 2280 SSDS,NVME™M.2 2280固态硬盘,FT3T84P48APHBFC,FT1T92P48APHBYC,FT240GP48APHBPC,FT240GP48APHBPI,FT960GP48APHBYI,N651SI,AF960GSTJA-HBAXX,FT1T92P48APHBPI,N601VI,FT480GP48APHBFI,FT3T84P48APHBFI,FT1T92P48APHBPC,FT480GP48APHBFC,FT960GP48APHBYC,N651SC,N601VC,FT960GP48APHBFC,FT240GP48APHBSC,FT960GP48APHBFI,FT480GP48APHBYI,FT240GP48APHBSI,AF240GSTJA-HBBXX,AF1T92STJA-HBBXX,AF480GSTJA-HBBXX,FT1T92P48APHBYI,FT480GP48APHBPI,FT480GP48APHBPC,FT1T92P48APHBFC,FT960GP48APHBSI,FT1T92P48APHBFI,FT960GP48APHBSC,FT3T84P48APHBYC,FT240GP48APHBFC,FT480GP48APHBYC,AF960GSTJA-HBBXX,FT240GP48APHBFI,FT240GP48APHBYC,FT240GP48APHBYI,FT480GP48APHBSI,N751PI,FT480GP48APHBSC,FT3T84P48APHBYI,FT960GP48APHBPI,N601SC,FT1T92P48APHBSI,AF1T92STJA-HBAXX,AF240GSTJA-HBAXX,FT960GP48APHBPC,AF480GSTJA-HBAXX,FT1T92P48APHBSC,数据记录,成像系统,IMAGING SYSTEMS,DATA LOGGING,高速数据传输,监控,HIGH-SPEED DATA TRANSFER,SURVEILLANCE

082024  - 商品及供应商介绍  - v4 代理服务 技术支持 采购服务 查看更多版本

提供I-TEMP/C-TEMP可操作型号的无DRAM超值系列固态硬盘

该资料介绍了ATP Electronics的Value Line固态硬盘(SSD)系列,包括N600Vi/Vc和A600Vi/Vc两款产品。这些SSD专为工业/嵌入式应用设计,提供可靠的性能、多种容量选项和长期供应承诺。它们采用无DRAM配置,以降低功耗和热量产生。产品适用于读密集型或读写混合型应用,如网络服务器、盒式PC、自助服务亭/销售点系统(POS)和其他需要可靠性和低成本投资的工业/嵌入式启动驱动器。

ATP  -  MSATA VALUE LINE SOLID STATE DRIVES,固态硬盘,SSDS,MSATA超值系列固态硬盘,无DRAM超值系列固态硬盘,DRAM-LESS VALUE LINE SSDS,A600VC SERIES,N600VI,A600VI,A600VI SERIES,A600VC,N600VC SERIES,N600VC,N600VI SERIES,WEB SERVERS,工业引导驱动器,嵌入式引导驱动器,信息亭,INDUSTRIAL BOOT DRIVES,POINT-OF-SALE SYSTEMS,EMBEDDED BOOT DRIVES,销售点系统,POS,EMBEDDED APPLICATIONS,工业应用,INDUSTRIAL APPLICATIONS,嵌入式应用程序,BOX PCS,KIOSK,盒装PCS,网络服务器

2024/7/23  - 数据手册 代理服务 技术支持 采购服务

BGA SSD: Powerful NVMe Performance in a Tiny Package

ATP‘s N700 Series SSDs are built with 3D triple-level cell (TLC) configured as pseudo-single-level cell (pSLC) NAND flash. By storing only one bit per cell, they increase the reliability and endurance of the NAND flash memory, while benefiting from the lower cost compared with native SLC, due to the higher cell density.

2021-05-26 -  原厂动态 代理服务 技术支持 采购服务
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丙烯酸/光固化&双固化UV胶定制

可定制UV胶的粘度范围:150~25000cps,粘接材料:金属,塑料PCB,玻璃,陶瓷等;固化方式:UV固化;双固化,产品通过ISO9001:2008及ISO14000等认证。

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ATP半导体冷板制冷器定制

可定制ATP TE Cooler的冷却功率:40~200W;运行电压:12/24/48V(DC);控温精度:≤±0.1℃; 尺寸:冷面:20*20~500*300;热面:60*60~540*400 (长*宽;单位mm)。

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