Mike Proud’s Post

Your files are dying. That SSD you keep in the closet, the one from your old system "just in case". Yup, degrading as we speak. SSDs are *shockingly* bad at power off retention, esp if it's near it's endurance rating. The JEDEC standard only requires 1 year of unpowered data retention at 30C after max TBW (writes). --- Now here is where physics starts to get goofy. The conductivity of a semiconductor scales with temperature, and electrons have a nasty tendency of floating out of their gates. Powered-on retention is *better* at higher temperatures, Power-off retention is better at lower temperatures. If your closet stored SSD is hot, (like, crazy hot, 55C+), the data retention decreases to less than a week! In other words, MLC NAND likes to run hot, but be stored cold. --- Yes, I'm mostly trying to scare you into backing up your data actively. Cold storage is not a solution. It's not all doom and gloom however. Thankfully, retention goes way up when a drive is closer to new. If you're not close to the max TBW, and storing the powered off drive at a reasonable temp, you start to hit 10+ years of retention. Even so, I wouldn't risk it. Whether spinning rust or the newest SSD, an active archive is a happy archive.

interesting, with wise advice.

💌 Invitation to Tech Enthusiasts: Unveiling the Big World Inside a Tiny SSD 🌐 Dear Tech Aficionados, Have you ever wondered what makes a great SSD? 🤔 In a world where every manufacturer claims to have the fastest, most reliable storage solution, Renice is not just another name in the crowd. We're the mavericks of the industry, pushing the boundaries of what's possible with every byte we store. 👤 The Difference Between a Tailor and a Designer: Just as a master designer elevates fashion beyond mere clothing, Renice elevates SSD technology beyond mere data storage. 🔩 Join Us on a Journey: We invite you to dive into the intricate and innovative world of Renice SSDs, where every component is meticulously crafted to redefine performance, reliability, and durability. 🏆 A Few of Our Technological Marvels: 1. Encryption That Guards Your Data Like a Fort: With our advanced AES encryption, your data is safer than a secret agent's playbook. 2. Performance That Races Ahead: Our RS3502 controller doesn't just manage data, it races it to its destination at lightning speeds. 3. ECC Tech That Defies Time: Our Error Correction Code technology is like a time-traveler, extending the life of your NAND Flash and ensuring your data's longevity. 4. Wear Leveling That's Fair Play: Our Non-Balance Wear Leveling Technology ensures every block gets a fair chance, extending the life of your SSD. 5. Backup Tech That's Always Ready: With our r-Backup technology, your data is protected even when the power isn't. 6. Customization That Fits Your Every Need: We don't just make SSDs, we create solutions tailored to your specific industrial requirements. 🔗 Ready to Discover More? We thought so. Click the link below to embark on a journey through the technological marvels that await you inside a Renice SSD. https://lnkd.in/gtbfGSHc

What is RAM(Random Access Memory)? 🚀 RAM (Random Access Memory) is a type of computer memory that stores data temporarily. It's fast, volatile memory, meaning that when the computer is powered off, all data stored in RAM is lost. 🚀 Uses of RAM:- 🌟 Boosts Speed and Performance: RAM helps your computer run faster by providing quick access to the information your processor needs. The more RAM you have, the better your computer can handle multiple tasks at the same time without slowing down. 🌟 Holds Temporary Data: RAM acts like a workspace for your computer, storing data that is actively being used. It keeps things running smoothly, but once the computer is turned off, all the data in RAM is cleared. This makes RAM crucial for handling real-time tasks efficiently. 🚀 Types of RAM:- 🌟 SRAM (Static RAM): 🌟 Faster and more reliable: SRAM is faster than DRAM because it doesn’t need to be refreshed constantly. 🌟 Used in cache memory: It is used in small amounts for CPU cache due to its speed. 🌟 More expensive: SRAM is more costly to produce compared to DRAM because it uses more transistors to store each bit of data. 🌟 DRAM (Dynamic RAM): 🌟 Most common type: DRAM is the standard memory used in most computers. 🌟 Needs to be refreshed: Unlike SRAM, DRAM needs constant refreshing to maintain data. 🌟 Cheaper but slower: It is slower than SRAM but is much cheaper and can be produced in larger capacities.

The Dilemma of SSDs #Forensics So, you took mirrors of an SSD to preserve #evidence. Only to find out that #hashing was unmatched? Solid-State Drives have a limited number of writes and as a result, will need two different capabilities that are used to help reduce the overall wear of the SSD: 1. Performance #Trimining: an ATA command issued by the operating system to inform the SSD which blocks of data are no longer in use. When a file is deleted or modified, the operating system sends a Trim command to the SSD, indicating that the associated blocks can be erased in advance during the garbage collection process. By doing this, the SSD can proactively clean up and prepare those blocks for future write operations, resulting in improved performance and longevity. 2. #Wear Leveling: When content is changed, it must first be moved to a new location before the data can be saved, and then the data will be slacked in the garbage collection queue. Once the data has been moved, the original locations is then free to be cleaned. The data on SSD is #virtualized, and the sectors are #logical and not physical [constantly changes]. Every 5 write cycles, the data is moved to a new empty block. This destroys some #forensics data like file slack. Most SSDs will also auto-repair the drive from sudden power loss, adding additional #artifacts. Normal Shutdown operations can also lead to the above outcome. In short, the best way to acquire SSD is by doing #live acquisition [similar to #memory acquisition]. #digitalforensics #incidentresponse #soc

** SSDs HAVE A WRITE DATA LIMIT ** No drive lasts forever and that includes an SSD. Unlike a mechanical drive with spinning platters and a motor, no moving parts are inside a solid-state drive. So how does an SSD eventually fail? It's all down to how data is stored. Using the power of electricity and memory chips, data is written and read to data banks on the PCB. The chemicals inside these chips will wear down as data is written to the drive. That's not to say an SSD will fail prematurely compared to an HDD, but if it's used to write lots of data, its lifespan will be cut dramatically. This is why an SSD endurance is measured in terabytes written (TBW). An SSD with an endurance rating of 400 TBW can have 400 TB written to the drive before the capacity and/or performance takes a hit. If you don't have a lot of data to write to a NAS and want a drive that will last a long time, an SSD would make sense, so long as you don't mind paying a premium. --- For more detail about this, check out the full article here: Should You Get an SSD-Only NAS? https://lnkd.in/gVEevUer

What is the Best Option for SSD Data Recovery? Solid State Drives (SSDs) represent the zenith of data storage technology, characterized by their absence of mechanical parts and extreme read/write speeds. Regrettably, there could be instances where your SSD fails to operate correctly, necessitating the removal of your files. SSDs typically have TRIM enabled to increase their speed and<span class="excerpt-hellip"> […]</span> https://lnkd.in/eiaBN_Hs

How M.2 SSDs Work? M.2 SSDs operate by using flash memory chips to store data. When data is written to an SSD, it is stored in a grid of NAND flash cells, which retain the data even when the power is off. The drive’s controller manages the data, handling tasks such as error correction, wear leveling, and garbage collection to ensure efficient and reliable performance. Causes of Data Loss in M.2 SSDs Physical Damage: Dropping the SSD or damaging the M.2 slot can cause data loss. Firmware Corruption: Malfunctions in the SSD’s firmware can prevent access to stored data. Electromagnetic Interference: Electrical surges or static discharge can damage the SSD. Wear and Tear: Over time, the NAND cells can wear out, leading to potential data loss. File System Corruption: Improper shutdowns or software issues can corrupt the file system. Speed of M.2 SSDs M.2 SSDs are exceptionally fast, with NVMe (Non-Volatile Memory Express) M.2 SSDs offering read/write speeds of up to 3,500 MB/s or more, compared to SATA SSDs which max out around 600 MB/s. This speed is due to the direct PCIe connection, which provides a high-bandwidth interface. Lifeguard Data Recovery Expertise in M.2 SSD Recovery Lifeguard Data Recovery in Hyderabad specializes in M.2 SSD data recovery, leveraging advanced tools and techniques to handle various causes of data loss. Their expertise includes dealing with physical damage, firmware issues, and logical failures. With a team of experienced technicians, they offer reliable and efficient recovery services, ensuring high success rates in retrieving lost data from M.2 SSDs. In conclusion, M.2 SSDs are a cutting-edge storage solution known for their speed and efficiency. However, data loss can occur due to various factors, and experts like Lifeguard Data Recovery are equipped to address these issues effectively, providing peace of mind to users facing data loss. Book your free diagnosis appoitments on https://lnkd.in/gBpTTppx or call on +91 -8977544544

𝐓𝐡𝐞 𝐜𝐨𝐬𝐭 𝐨𝐟 𝐬𝐭𝐨𝐫𝐢𝐧𝐠 𝟏-𝐛𝐢𝐭 𝐝𝐚𝐭𝐚 𝐟𝐫𝐨𝐦 𝟏𝟗𝟓𝟕 𝐭𝐨 𝟐𝟎𝟐𝟒? Digital storage is an integral part of our life. Whatever digital technology we see from Disk drives to solid state drives (SDDs) and flash memories, they have a cost that is paid by users. Using a carefully collected dataset (https://lnkd.in/gicZYktN), I am going to analyze the evolution of this cost in terms of cost per bit and daily cost reduction. 𝐂𝐨𝐬𝐭 𝐩𝐞𝐫 𝐛𝐢𝐭  In 1957, the cost of storing 1-bit of data using a Phister 366 transistor flip-flop was approximately $51.38. By July 2024, using a modern 2x 32GB DIMM DDR4-3600 SSD from Patriot Memory's Viper Elite series, that same 1-bit of data would cost just $0.00000000019125. This staggering reduction represents two following points:. First: the percentage decrease is 100% which is near-total elimination of cost. Second: a cost drop by a factor of 268 billion times which is about 11 orders of magnitude cheaper. 𝐂𝐨𝐬𝐭 𝐫𝐞𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐩𝐞𝐫 𝐝𝐚𝐲 From January 1, 1957, to January 1, 2024, there are 24,471 days. Therefore, The cost of storing 1 bit of data decreased by approximately $0.0021 per day over this period. This highlights the profound and steady reduction in data storage costs across 67 years. Here's a visually compelling plot showing the dramatic reduction in the cost of storing one bit of data from 1957 to 2024. The logarithmic scale highlights the exponential decrease, capturing the extraordinary advancement in storage technology over the decades.

"AERO: Adaptive Erase Operation for Improving Lifetime and Performance of Modern NAND Flash-Based SSDs This work investigates a new erase scheme in NAND flash memory to improve the lifetime and performance of modern solid-state drives (SSDs). In NAND flash memory, an erase operation applies a high voltage (e.g., > 20 V) to flash cells for a long time (e.g., > 3.5 ms), which degrades cell endurance and potentially delays user I/O requests. While a large body of prior work has proposed various techniques to mitigate the negative impact of erase operations, no work has yet investigated how erase latency should be set to fully exploit the potential of NAND flash memory; most existing techniques use a fixed latency for every erase operation which is set to cover the worst-case operating conditions. To address this, we propose AERO (Adaptive ERase Operation), a new erase scheme that dynamically adjusts erase latency to be just long enough for reliably erasing target cells, depending on the cells' current erase characteristics. AERO accurately predicts such near-optimal erase latency based on the number of fail bits during an erase operation. To maximize its benefits, we further optimize AERO in two aspects. First, at the beginning of an erase operation, AERO attempts to erase the cells for a short time (e.g., 1 ms), which enables AERO to always obtain the number of fail bits necessary to accurately predict the near-optimal erase latency. Second, AERO aggressively yet safely reduces erase latency by leveraging a large reliability margin present in modern SSDs. We demonstrate the feasibility and reliability of AERO using 160 real 3D NAND flash chips, showing that it enhances SSD lifetime over the conventional erase scheme by 43% without change to existing NAND flash chips. Our system-level evaluation using eleven real-world workloads shows that an AERO-enabled SSD reduces read tail latency by 34% on average over a state-of-the-art technique." https://lnkd.in/e3j6N9XH