Home Hardware Tutorial Hardware Review SSD goes from efficient storage to the edge of failure. Several warning signs you need to know

SSD goes from efficient storage to the edge of failure. Several warning signs you need to know

Aug 22, 2024 pm 06:58 PM
Signal data center storage Invalid nand ssd nand flash memory

In pursuit of an efficient and stable storage experience, solid-state drives (SSDs) are undoubtedly the ideal choice. Its excellent performance can protect data access for a long time. However, SSD is not perfect. The write and erase cycle limitations of its core component, NAND flash memory, indicate that its performance will gradually decay over time, until it may eventually face the risk of failure.

SSD 从高效存储走到失效边缘 你需知道的几大警示信号

How to accurately evaluate the life of SSD?

What are the key factors that invisibly affect its durability? More importantly, when an SSD is approaching the end of its life, can we tell in advance through some telltale signs?

How long is the lifespan of an SSD?

Generally speaking, a high-quality SSD can work stably for five to ten years if used properly. However, this time frame is not absolute and is affected by a combination of factors.

SSD 从高效存储走到失效边缘 你需知道的几大警示信号

1. Factors affecting SSD lifespan
  • NAND flash memory types

    • SLC: Highest durability and speed, but the highest cost
    • MLC: Lower durability and speed, lower cost
    • TLC: Lower durability and speed, lower cost
    • QLC: Lowest durability and speed, lowest cost
  • Workload and usage frequency

    • High intensity workload and frequent use will shorten the lifespan
    • Data center: A large number of read and write operations
    • Personal computer: Less frequent usage
  1. The impact of time on SSD life

    • Time itself will gradually degrade the SSD
    • Usage is directly related to lifespan Relevance challenged
  2. SSD replacement rate in data center

    • SSD replacement rate is lower than HDD
    • SSD is more prone to uncorrectable errors and bad blocks, but does not necessarily lead to complete failure

      SSD 从高效存储走到失效边缘 你需知道的几大警示信号

      SSD Reliability: Backblaze Study

Cloud storage and backup company Backblaze provides valuable data on SSD reliability. In Backblaze's report, the company experienced a total of 63 SSD failures.

Based on the analysis of the power-on hours (POH) of these SSDs, they calculated that the average failure age of SSDs is 14 months. But this data needs to be interpreted with caution as it can be misleading. Because the average age of Backblaze's entire SSD fleet is only 25 months. This suggests that as the SSD fleet ages, the average age of SSDs at the time of failure is expected to increase in the future.

Challenges of SSD Lifetime Prediction

Accurately predicting the lifespan of SSDs is extremely challenging because most current research focuses on data center environments rather than consumer-grade SSDs. Measuring the exact average lifespan of consumer-grade SSDs is particularly difficult because of the numerous other variables involved in addition to the time factor, although time is considered the most important of these.

Factors affecting SSD lifespan

Although the lifespan evaluation of SSDs is complicated, manufacturers usually provide several key indicators to help us understand its durability:

  • Total Bytes Written (TBW)
  • Drive Writes Per Day (DWPD)
  • Mean Time Between Failure (MTBF)

Together these metrics give us a framework of how well an SSD can work and expect to live before the risk of failure increases significantly.

SSD 从高效存储走到失效边缘 你需知道的几大警示信号

SSD Performance Metrics

1. TBW (Total Bytes Written):
Measures the total amount of written data that an SSD can withstand before it wears out to failure. High TBW values ​​represent greater durability. Assuming only 100GB of data is written per day, a nominal 1,200TB TBW SSD could last up to 230 years.

2. DWPD (Drive Writes Per Day):
Reflects the percentage of the SSD’s total capacity that can be safely written to every day during the warranty period. Take the Samsung 990 Pro 2TB SSD, for example, which comes with a five-year warranty of 0.3 DWPD, meaning about 600GB of data can be written per day.

3. MTBF (Mean Time Between Failures):
A time unit that measures SSD reliability, indicating the number of hours the SSD is expected to operate without failure under normal operating conditions. The Samsung 990 Pro has an MTBF of up to 1.5 million hours, or about 171 years.

SSD 从高效存储走到失效边缘 你需知道的几大警示信号

SSD Lifetime Assessment
  1. TWB and DWPD Estimation

    • TBW (Total Bytes Written) and DWPD (Writes Per Day) provide an estimate of the SSD lifespan.
  2. Influencing factors

    • NANDフラッシュの種類
    • ワークロード
    • 使用頻度
    • 周囲温度
    • ファームウェア管理
  3. 経年の影響

    • NANDフラッシュメモリの酸化層は時間の経過とともに劣化します。 SSD の磨耗増加。
  4. 保証期間

    • ほとんどの SSD には 3 ~ 5 年の限定保証が付いていますが、保証期間後の SSD の寿命は、ビルドの品質、使用条件、運によって異なります。

SSDタイプの違いの影響

  1. 統一規格の欠如

    • SSDごとに使用されるNANDフラッシュメモリのタイプは大きく異なり、その寿命に影響を与えます。

SSDと他のストレージメディアの比較

  1. NANDフラッシュテクノロジー

    • NANDフラッシュメモリは、電源が遮断されてもデータを保持する不揮発性フラッシュメモリの一種です。
  2. HDDとの違い

    • SSDはNANDフラッシュメモリを使用するのに対し、HDDは回転する磁気プラッターを使用してデータを保存します。 SSD は速度と安定性の点で HDD よりも優れています。

SSD障害の兆候

  1. パフォーマンス低下

    • SSD障害が発生する前に、コンピューターのパフォーマンスが急激に低下し、起動アプリケーションまたはシステムの応答時間が長くなります。
  2. 異常なディスク使用量

    • SSDに問題がある場合、他のプログラムが実行されていない場合でも、タスクマネージャーに表示されるディスク使用量が異常に増加します。
  3. データバックアップ

    • SSD が完全に故障する前に、ユーザーは時間内に問題を特定し、データの損失を避けるためにデータをバックアップする必要があります。

      SSD 从高效存储走到失效边缘 你需知道的几大警示信号

      SSD障害の一般的な警告兆候
  4. 頻繁にシステムがクラッシュする(特に起動中)
  5. SSDが誤って読み取り専用状態になり、データ書き込み操作が制限される
  6. ファイルシステムエラーが頻繁に発生し、データの整合性とアクセシビリティに影響する
  7. パフォーマンスが大幅に低下し、日常の動作が遅くなります
  8. データ破損のリスクが高まり、ファイルが正しく読み取れなくなったり、正しく開かれなくなる可能性があります
  9. システムの根底にある重大な問題を示すブルースクリーン(BSOD)現象
  10. システム応答しないか頻繁にフリーズし、通常のワークフローを妨げます
  11. データブロックの破損、セクターの再割り当て、その他の主要な健全性指標の異常などのSMART (自己監視、分析、レポート技術) 警告

最後に記載

SSD の損傷によって起こり得る深刻な結果、つまりデータの完全な損失を考慮して、データを定期的にバックアップすることが重要です。同時に、問題の初期段階で対策を講じることができるように、SSD の健康状態を定期的にチェックする習慣を身に付けることも同様に重要です。障害の兆候が発見されたら、全員が直ちにデータの移行を開始し、データのセキュリティと安定したシステム動作を確保するために新しい SSD への交換の準備をする必要があります。

The above is the detailed content of SSD goes from efficient storage to the edge of failure. Several warning signs you need to know. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1653
14
PHP Tutorial
1251
29
C# Tutorial
1224
24
Industry's highest transfer rate of 3.6GB/s, Micron announces mass production of ninth-generation 276-layer TLC NAND flash memory Industry's highest transfer rate of 3.6GB/s, Micron announces mass production of ninth-generation 276-layer TLC NAND flash memory Jul 31, 2024 am 08:05 AM

According to news from this site on July 30, Micron announced today (local time) that its ninth generation (site note: 276 layers) 3DTLC NAND flash memory will be mass-produced and shipped. Micron said that its G9NAND has the industry's highest I/O transfer rate of 3.6GB/s (i.e. 3600MT/s flash memory interface rate), which is 50% higher than the existing competing products of 2400MT/s, and can better meet the needs of data-intensive workloads. High throughput requirements. At the same time, Micron's G9NAND is 99% and 88% higher than other solutions on the market in terms of write bandwidth and read bandwidth respectively. This NAND particle-level advantage will bring performance and energy efficiency to solid-state drives and embedded storage solutions. improvement. In addition, like previous generations of Micron NAND flash memory, Micron 276

Huawei will launch innovative MED storage products next year: rack capacity exceeds 10 PB and power consumption is less than 2 kW Huawei will launch innovative MED storage products next year: rack capacity exceeds 10 PB and power consumption is less than 2 kW Mar 07, 2024 pm 10:43 PM

This website reported on March 7 that Dr. Zhou Yuefeng, President of Huawei's Data Storage Product Line, recently attended the MWC2024 conference and specifically demonstrated the new generation OceanStorArctic magnetoelectric storage solution designed for warm data (WarmData) and cold data (ColdData). Zhou Yuefeng, President of Huawei's data storage product line, released a series of innovative solutions. Image source: Huawei's official press release attached to this site is as follows: The cost of this solution is 20% lower than that of magnetic tape, and its power consumption is 90% lower than that of hard disks. According to foreign technology media blocksandfiles, a Huawei spokesperson also revealed information about the magnetoelectric storage solution: Huawei's magnetoelectronic disk (MED) is a major innovation in magnetic storage media. First generation ME

Gartner: Generative AI will drive the transformation of Chinese enterprise data center design Gartner: Generative AI will drive the transformation of Chinese enterprise data center design Apr 16, 2024 pm 10:41 PM

According to news on April 15, 2024, a 2024 CIO and technology executive survey recently released by Gartner shows that more than 60% of Chinese companies plan to deploy generative artificial intelligence (GenAI) in the next 12 to 24 months. Since Chinese companies tend to deploy GenAI locally rather than through the public cloud, the current infrastructure environment cannot support GenAI projects. This will promote the design transformation of Chinese enterprise data centers. Zhang Lukeng, research director at Gartner, said: "Due to security and data privacy concerns and regulatory requirements, some enterprises prefer to deploy GenAl solutions or fine-tune large language models (LLM) on-premises. Deploying GenAl on-premises is important for data centers not just

Samsung's 9th generation V-NAND metal wiring mass production process is revealed to use molybdenum technology for the first time Samsung's 9th generation V-NAND metal wiring mass production process is revealed to use molybdenum technology for the first time Jul 03, 2024 pm 05:39 PM

According to news from this site on July 3, according to Korean media TheElec, Samsung tried to use molybdenum (Mo) for the first time in the "metal wiring" (metalwiring) of its 9th generation V-NAND. Note from this site: The eight major processes in the semiconductor manufacturing process are: wafer manufacturing oxidation photolithography etching deposition metal wiring testing packaging metal wiring process mainly uses different methods to connect billions of electronic components to form different semiconductors (CPU , GPU, etc.), it can be said to "inject life into semiconductors." Sources say Samsung has introduced five Mo deposition machines from Lam Research, and plans to introduce 20 more pieces of equipment next year. In addition to Samsung Electronics, companies such as SK Hynix, Micron and Kioxia are also

The impact of the AI ​​wave is obvious. TrendForce has revised up its forecast for DRAM memory and NAND flash memory contract price increases this quarter. The impact of the AI ​​wave is obvious. TrendForce has revised up its forecast for DRAM memory and NAND flash memory contract price increases this quarter. May 07, 2024 pm 09:58 PM

According to a TrendForce survey report, the AI ​​wave has a significant impact on the DRAM memory and NAND flash memory markets. In this site’s news on May 7, TrendForce said in its latest research report today that the agency has increased the contract price increases for two types of storage products this quarter. Specifically, TrendForce originally estimated that the DRAM memory contract price in the second quarter of 2024 will increase by 3~8%, and now estimates it at 13~18%; in terms of NAND flash memory, the original estimate will increase by 13~18%, and the new estimate is 15%. ~20%, only eMMC/UFS has a lower increase of 10%. ▲Image source TrendForce TrendForce stated that the agency originally expected to continue to

Samsung introduces BM1743 data center-grade SSD: equipped with v7 QLC V-NAND and supports PCIe 5.0 Samsung introduces BM1743 data center-grade SSD: equipped with v7 QLC V-NAND and supports PCIe 5.0 Jun 18, 2024 pm 04:15 PM

According to news from this website on June 18, Samsung Semiconductor recently introduced its next-generation data center-grade solid-state drive BM1743 equipped with its latest QLC flash memory (v7) on its technology blog. ▲Samsung QLC data center-grade solid-state drive BM1743 According to TrendForce in April, in the field of QLC data center-grade solid-state drives, only Samsung and Solidigm, a subsidiary of SK Hynix, had passed the enterprise customer verification at that time. Compared with the previous generation v5QLCV-NAND (note on this site: Samsung v6V-NAND does not have QLC products), Samsung v7QLCV-NAND flash memory has almost doubled the number of stacking layers, and the storage density has also been greatly improved. At the same time, the smoothness of v7QLCV-NAND

How to solve the common problem of Laravel login time invalidation How to solve the common problem of Laravel login time invalidation Mar 06, 2024 pm 09:24 PM

How to solve the common problem of Laravel login time expiration When using Laravel to develop web applications, login authentication is a very important function. However, sometimes if a user does not operate for a long time after logging in, the page may automatically log out or the authentication may fail. This problem is relatively common. The following will introduce how to solve this problem by setting the session time and provide specific code examples. 1. Set the session expiration time in Laravel, by default sessi

How to check SSD health status in Windows 11? How to check SSD health status on Win11 How to check SSD health status in Windows 11? How to check SSD health status on Win11 Feb 14, 2024 pm 08:21 PM

How to check SSD health status in Windows 11? For their fast read, write, and access speeds, SSDs are quickly replacing HDDs, but even though they are more reliable, you still need to check the health of your SSDs in Windows 11. How to operate it? In this tutorial, the editor will share with you the method. Method 1: Use WMIC1, use the key combination Win+R, type wmic, and then press or click OK. Enter2. Now, type or paste the following command to check the SSD health status: diskdrivegetstatus If you receive the "Status: OK" message, your SSD drive is operating normally.

See all articles