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Hier — 18 mai 2024Slashdot

WD Rolls Out New 2.5-Inch HDDs For the First Time In 7 Years

Par : BeauHD
17 mai 2024 à 23:20
Western Digital has unveiled new 6TB external hard drives -- "the first new capacity point for this hard drive drive form factor in about seven years," reports Tom's Hardware. "There is a catch, though: the HDD is slow and will unlikely fit into any mobile PCs, so it looks like it will exclusively serve portable and specialized storage products." From the report: Western Digital's 6TB 2.5-inch HDD is currently used for the latest versions of the company's My Passport, Black P10, and G-Drive ArmorATD external storage devices and is not available separately. All of these drives (excluding the already very thick G-Drive ArmorATD) are thicker than their 5 TB predecessors, which may suggest that in a bid to increase the HDD's capacity, the manufacturer simply installed another platter and made the whole drive thicker instead of developing new platters with a higher areal density. While this is a legitimate way to expand the capacity of a hard drive, it is necessary to note that 5TB 2.5-inch HDDs already feature a 15-mm z-height, which is the highest standard z-height for 2.5-inch form-factor storage devices. As a result, these 6TB 2.5-inch drives will unlikely fit into any desktop PC. When it comes to specifications of the latest My Passport, Black P10, and G-Drive ArmorATD external HDDs, Western Digital only discloses that they offer up to 130 MB/s read speed (just like their predecessors), feature a USB 3.2 Gen 1 (up to 5 GT/s) interface using either a modern USB Type-C or Micro USB Type-B connector and do not require an external power adapter.

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À partir d’avant-hierSlashdot

Father of SQL Says Yes to NoSQL

Par : EditorDavid
12 mai 2024 à 15:34
An anonymous reader shared this report from the Register: The co-author of SQL, the standardized query language for relational databases, has come out in support of the NoSQL database movement that seeks to escape the tabular confines of the RDBMS. Speaking to The Register as SQL marks its 50th birthday, Donald Chamberlin, who first proposed the language with IBM colleague Raymond Boyce in a 1974 paper [PDF], explains that NoSQL databases and their query languages could help perform the tasks relational systems were never designed for. "The world doesn't stay the same thing, especially in computer science," he says. "It's a very fast, evolving, industry. New requirements are coming along and technology has to change to meet them, I think that's what's happening. The NoSQL movement is motivated by new kinds of applications, particularly web applications, that need massive scalability and high performance. Relational databases were developed in an earlier generation when scalability and performance weren't quite as important. To get the scalability and performance that you need for modern apps, many systems are relaxing some of the constraints of the relational data model." [...] A long-time IBMer, Chamberlin is now semi-retired, but finds time to fulfill a role as a technical advisor for NoSQL company Couchbase. In the role, he has become an advocate for a new query language designed to overcome the "impedance mismatch" between data structures in the application language and a database, he says. UC San Diego professor Yannis Papakonstantinou has proposed SQL++ to solve this problem, with a view to addressing impedance mismatch between heavily object-based JavaScript, the core language for web development and the assumed relational approach embedded in SQL. Like C++, SQL++ is designed as a compatible extension of an earlier language, SQL, but is touted as better able to handle the JSON file format inherent in JavaScript. Couchbase and AWS have adopted the language, although the cloud giant calls it PartiQL. At the end of the interview, Chamblin adds that "I don't think SQL is going to go away. A large part of the world's business data is encoded in SQL, and data is very sticky. Once you've got your database, you're going to leave it there. Also, relational systems do a very good job of what they were designed to do... "[I]f you're a startup company that wants to sell shoes on the web or something, you're going to need a database, and one of those SQL implementations will do the job for free. I think relational databases and the SQL language will be with us for a long time."

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The People Who Won't Give Up Floppy Disks

Par : EditorDavid
11 mai 2024 à 21:34
Slashdot reader quonset writes: The last floppy disk was manufactured in 2011. Despite no new supplies being available for over a decade, there are still people, and organizations, who rely on floppy disks. Each has their own story as to why they rely on what is essentially 1970s technology. From the BBC: Tom Persky, a US businessman, has been selling "new", as in, unopened, floppy disks for years and still finds the trade lucrative. He runs Floppydisk.com, which offers disks for about US$1 (£0.80) each, though some higher capacity versions cost up to US$10 (£8) per disk, he says. Persky has customers all over the world and you could split them roughly 50-50 into hobbyists and enthusiasts like Espen Kraft on one side, and industrial users on the other. This latter category encompasses people who use computers at work that require floppy disks to function. They are, essentially, locked in to a format that the rest of the world has largely forgotten. "I sell thousands of floppy disks to the airline industry, still," says Persky. He declines to elaborate. "Companies are not happy about when I talk about them." But it is well-known that some Boeing 747s, for example, use floppy disks to load critical software updates into their navigation and avionics computers. While these older aircraft might not be so common in Europe or the US these days, you might find one in the developing world, for instance, Persky hints. There are also pieces of factory equipment, government systems — or even animatronic figures — that still rely on floppy disks. And in San Francisco, the Muni Metro light railway, which launched in 1980, won't start up each morning unless the staff in charge pick up a floppy disk and slip it into the computer that controls the railway's Automatic Train Control System, or ATCS. "The computer has to be told what it's supposed to do every day," explains a spokesman for the San Francisco Municipal Transport Agency (SFMTA). "Without a hard drive, there is nowhere to install software on a permanent basis." This computer has to be restarted in such a way repeatedly, he adds — it can't simply be left on, for fear of its memory degrading. The article also includes this quote from a cybersecurity expert at Pen Test Partners. "If floppy was the only interface, the only way to get malware on to [the computer] would be via said floppy disk. That's quite a limiting factor for the attacker..."

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The 'Ceph' Community Now Stores 1,000 Petabytes in Its Open Source Storage Solution

Par : EditorDavid
27 avril 2024 à 17:34
1,000 petabytes. A million terabytes. One quintillion bytes (or 1,000,000,000,000,000,000). That's the amount of storage reported by users of the Ceph storage solution (across more than 3,000 Ceph clusters). The Ceph Foundation is a "directed fund" of the Linux Foundation, providing a neutral home for Ceph, "the most popular open source storage solution for modern data storage challenges" (offering an architecture that's "highly scalable, resilient, and flexible"). It's a software-defined storage platform, providing object storage, block storage, and file storage built on a common distributed cluster foundation. And Friday they announced the release of Ceph Squid, "which comes with several performance and space efficiency features along with enhanced protocol support." Ceph has solidified its position as the cornerstone of open source data storage. The release of Ceph Squid represents a significant milestone toward providing scalable, reliable, and flexible storage solutions that meet the ever-evolving demands of digital data storage. Features of Ceph Squid include improvements to BlueStore [a storage back end specifically designed for managing data on disk for Ceph Object Storage Daemon workloads] to reduce latency and CPU requirements for snapshot intensive workloads. BlueStore now uses RocksDB compression by default for increased average performance and reduced space usage. [And the next-generation Crimson OSD also has improvements in stability and read performance, and "now supports scrub, partial recovery and osdmap trimming."] Ceph continues to drive the future of storage, and welcomes developers, partners, and technology enthusiasts to get involved. Ceph Squid also brings enhancements for the CRUSH algorithm [which computes storage locations] to support more flexible and cost effective erasure coding configurations.

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Seagate Joins the HDD Price Hike Party, Blames AI for Spike in Demand

Par : msmash
26 avril 2024 à 00:41
Seagate has joined Western Digital in increasing the prices of hard drives, with rising demand due to the huge data requirements of AI taking the blame. AI is also behind a rapid growth in orders for Enterprise solid state drives. From a report: One of the big three makers of traditional rotating hard disk drives, Seagate informed customers that it is increasing prices effective immediately for new orders, but also for any changes to orders that are "over and above" previously committed volumes. This was disclosed in a letter from the company seen by analyst Trendforce, and comes just a couple of weeks after rival manufacturer Western Digital sent out a similar letter to customers informing them of price hikes. According to Trendforce, the cause of the issue is two-fold: rising demand for high-capacity HDD products driven by the current craze for all things AI, and reduced production by hard drive manufacturers that means they are unable to meet the demand, leading to soaring prices. The rising demand comes from AI training requiring huge volumes of data: OpenAI's GPT-3 model is said to have been trained using 45TB of data, which may have been surpassed for newer models. And while flash-based SSDs boast high-speed and low-latency, storing everything in flash would still be costly. Seagate launched a 30TB hard drive line last year. Hard drive production was cut by as much as 20 percent over the last two years or so because of falling orders during the pandemic, and now manufacturers are unprepared for a sudden uptick in demand.

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San Francisco's Light Rail To Upgrade From Floppy Disks

Par : msmash
9 avril 2024 à 07:52
Those taking public transport in the tech hub of San Francisco may be reassured to know that their rides will soon no longer be dependent on floppy disks. From a report: San Francisco Municipal Transportation Agency's director of transportation Jeffrey Tumlin told ABC that the city's automatic light-rail control system is running on outdated tech and "relies on three five-inch floppy disks" to boot up. The reporter was holding a 3.5-inch disk in the broadcast, so may have just skipped the word "point." "It's a question of risk," Tumlin explained in a three-minute segment about the floppy replacement project. "The system is currently working just fine, but we know that with each increasing year the risk of data degradation on the floppy disks increases and that at some point there will be a catastrophic failure." The agency noted that its system was installed in 1998, when floppies were still in common use and, er, "computers didn't have hard drives."

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Cinephiles Rallying To Physical Media

Par : msmash
5 avril 2024 à 17:21
An anonymous reader shares a report: Streaming was supposed to kill physical media, and has come very close. The DVD and Blu-ray market fell from $4.7bn in revenue in 2017 to barely $1.5bn in 2022. In September, Netflix ended its movie-by-mail service. Best Buy has removed physical media from its brick-and-mortar stores, and Target and Walmart may follow. Some new films may never be released physically at all. Yet a counterrevolution has been gathering. Some film fans never gave up physical media: they've spent years quietly buying thrift-store discs, discarded by the many US households that no longer have DVD or Blu-ray players, and waiting for their chance to rise again. Other fans, frustrated by streaming's limitations, have recently rediscovered physical media and trickled to join its rear-guard army. Physical media will never regain its heights, but it may live to fight a little longer -- supported by loyalists and by a cottage industry of independent and boutique film distributors that license classic and cult films and sell high-quality physical editions to eager, sometimes frantic, fans. Some of these labels offer streaming channels or video-on-demand as well, but still find business in Blu-rays. "We've grown rather than shrunk," Umbrella Entertainment, a distributor in Australia, told me. And when Universal released Oppenheimer on 4K Blu-ray this fall, the initial run sold out, with feverish Christopher Nolan fans pillaging the same megastores that are moving to drop physical media. 4K Blu-rays are currently the smallest slice of the film disc market, and require ultra-high-definition players and TVs, meaning that the Oppenheimer run was driven by a niche within a niche. But the episode seemed to indicate that a market exists -- especially when it has champions. Nolan himself had encouraged fans to rally to physical media: "If you buy a 4K UHD, you buy a Blu-ray, it's on your shelf, it's yours," he told IGN last year. "[Y]ou own it. That's never really the case with any form of digital distribution."

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