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    Besoin d’un bon disque dur externe ? Celui-ci est à moins de 80 € pour 4 To

    news.movim.eu / Numerama · Wednesday, 6 July - 15:33

[Deal du jour] Amazon propose 20 € de réduction sur le WD Elements de 4 To, un disque dur portable rapide, qui se connecte en USB 3.0, pour d’excellentes performances. Une grande capacité de stockage dans un petit format. [Lire la suite]

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    Besoin de stockage externe ? Ce disque dur de 2 To est en promotion

    news.movim.eu / Numerama · Tuesday, 31 May - 09:48

[Deal du jour] La Fnac propose 13 % de réduction sur le Western Digital Elements de 2 To, un disque dur portable simple et rapide, qui se connecte en USB 3.0 pour des performances optimales. Un design léger pour une grande capacité de stockage. [Lire la suite]

Abonnez-vous aux newsletters Numerama pour recevoir l’essentiel de l’actualité https://www.numerama.com/newsletter/

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    Western Digital announces 26TB hard drives and 15TB server SSDs

    news.movim.eu / ArsTechnica · Tuesday, 10 May - 16:54 · 1 minute

Western Digital's new 26 and 22TB hard drives.

Enlarge / Western Digital's new 26 and 22TB hard drives. (credit: Western Digital)

Western Digital announced a raft of new products yesterday aimed at both regular consumer PCs and big businesses with storage-hungry servers. The headliners are two new hard drives with huge capacities —one 26TB and one 22TB—as well as high-capacity SSDs for servers, internal and external performance-focused WD Black SSDs, and midrange PCIe 4.0 SSDs that could end up in your next prebuilt laptop or desktop PC.

The 26TB Ultrastar DC HC670 drives use tech called shingled magnetic recording, or SMR, to boost the amount of data that can fit on each platter, at the expense of performance . WD uses SMR technology across its WD Red Pro hard drive lineup, among others, which is targeted at businesses rather than home users. The WD Red Plus drives, introduced after WD was briefly caught using SMR technology in its hard drives without publicizing it , use the more traditional conventional magnetic recording (CMR) instead.

The 22TB drive does use CMR technology, boosting capacity while retaining performance. Current CMR drives mostly top out at 20TB as of this writing. Other 22TB hard drives we've seen from companies like Seagate have had to rely on SMR technology to reach that capacity. This drive will show up in many of Western Digital's product families, including the Ultrastar, WD Purple, WD Red, and WD Gold lineups. All of the new drives are expected to be available sometime this summer.

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    SSD NVMe M.2 : quel modèle choisir en 2022 ?

    news.movim.eu / JournalDuGeek · Tuesday, 10 May - 09:15

crucial-p2-1-158x105.jpg meilleur ssd nvme M.2

En 2022, les SSD NVMe représentent le nouveau standard en matière de périphérique de stockage. Bien plus performants, ils sont aussi plus faciles à installer que les SSD SATA 2.5. Nous vous avons préparé une petite sélection des modèles offrant le meilleur rapport qualité-prix du marché.

SSD NVMe M.2 : quel modèle choisir en 2022 ?

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    La règle 3-2-1 réduit vos risques de perdre toutes vos données

    news.movim.eu / Numerama · Thursday, 31 March - 11:17

Le 31 mars est la journée mondiale de la sauvegarde informatique L'occasion de rappeler quelques règles élémentaires d'hygiène informatique pour minimiser le risque de pertes de données. [Lire la suite]

Abonnez-vous aux newsletters Numerama pour recevoir l’essentiel de l’actualité https://www.numerama.com/newsletter/

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    If you like the data on your WD My Cloud OS 3 device, patch it now

    news.movim.eu / ArsTechnica · Wednesday, 19 January, 2022 - 22:28

If you like the data on your WD My Cloud OS 3 device, patch it now

Enlarge (credit: Western Digital )

Western Digital has patched three critical vulnerabilities—one with a severity rating of 9.8 and another with a 9.0—that make it possible for hackers to steal data or remotely hijack storage devices running version 3 of the company’s My Cloud OS.

CVE-2021-40438 , as one of the vulnerabilities is tracked, allows remote attackers with no authentication to make devices forward requests to servers of the attacker's choosing. Like the other two flaws Western Digital fixed, it resides in the Apache HTTP Server versions 2.4.48 and earlier. Attackers have already successfully exploited it to steal hashed passwords from a vulnerable system, and exploit code is readily available.

The vulnerability, with a severity rating of 9 out of a maximum 10, stems from a Server-Side Request Forgery . This class of bug lets attackers funnel malicious requests to internal systems that are behind firewalls or otherwise not accessible outside a private network. It works by inducing server-side applications to make HTTP requests to an arbitrary domain of the attacker's choosing.

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    Western Digital introduces new non-SMR 20TB HDDs with onboard NAND

    news.movim.eu / ArsTechnica · Wednesday, 1 September, 2021 - 17:27 · 1 minute

is the first shipping drive to achieve that density without the use of Shingled Magnetic Recording (SMR) technology.' src='https://cdn.arstechnica.net/wp-content/uploads/2021/09/WDC-OptiNAND-img3_082521a-800x582.jpg' >

Enlarge / This isn't Western Digital's first 20TB drive—but it is the first shipping drive to achieve that density without the use of Shingled Magnetic Recording (SMR) technology. (credit: Western Digital)

At Western Digital's HDD Reimagine Event yesterday, the company introduced its newest hard drive architecture—a hybrid spinning rust/NAND flash design it calls OptiNAND. But as WD President of Technology and Strategy Dr. Siva Sivaram told Ars in an interview, OptiNAND bears almost no resemblance to the much-maligned hybrid SSHD drives first introduced in 2011 and 2012.

Instead of promising SSD-like speeds via caching of customer data, OptiNAND offers increased areal density by removing firmware-accessible metadata from the disk itself and storing it on NAND instead.

20TB per disk without SMR

The most tangible milestone achieved by Western Digital's newly announced architecture is a nine-platter, 20TB drive that does not require Shingled Magnetic Recording ( SMR ) techniques. The new disk uses a subset of Western Digital's EAMR technology, which has been rebranded ePMR—presumably to emphasize that it's not SMR, which has severe performance and usability implications for many common workloads.

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    Samsung seemingly caught swapping components in its 970 Evo Plus SSDs

    news.movim.eu / ArsTechnica · Friday, 27 August, 2021 - 22:20 · 1 minute

You can

Enlarge / You can't see the part number which distinguishes the newer, slower drive from the older, faster one on the box—you need to check the PN field in the top center of the label on the drive itself. (credit: Jim Salter)

Recently, major SSD vendors Crucial and Western Digital have both been caught swapping out TLC NAND in their consumer SSDs for cheaper but much lower-performance, lower-endurance QLC NAND. Samsung appears to be joining them in the part-swapping corner of shame today, thanks to Chinese Youtuber 潮玩客, who documented a new version of the Samsung 970 Evo Plus using an inferior drive controller.

Although the consumer-facing model number of the drives did not change—it was a 970 Evo Plus last year, and it's still a 970 Evo Plus now—the manufacturer part number did. Unfortunately, the manufacturer part number isn't visible on the box the SSD comes in—as far as we've been able to determine, it's only shown on a small label on the drive itself.

Falling off the write cliff

We tested the 970 Evo Plus (alongside the 980, and the older 970 Pro) in March, clocking it at write speeds of 1,600+ MiB/sec on 1MiB workloads. Our benchmarking was done with he old version, part number MZVLB1T0HBLR. The newer version—part number MZVL21T0HBLU—is considerably slower. According to 潮玩客's test results, the newer version only manages 830MiB/sec—half the performance of the original.

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