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Fast and cheap bulk storage: using LVM to cache HDDs on SSDs

Since the inception of solid-state drives (SSDs), there has been a choice to make—either use SSDs for vastly superior speeds, especially with non-sequential read and writes (“random I/O”), or use legacy spinning rust hard disk drives (HDDs) for cheaper storage that’s a bit slow for sequential I/O and painfully slow for random I/O. The idea of caching frequently used data on SSDs and storing the rest on HDDs is nothing new—solid-state hybrid drives (SSHDs) embodied this idea in hardware form, wh

‘Talamasca: The Secret Order’ Lures You Deeper Into the World of ‘Interview With the Vampire’

Vampires, witches, and demons, beware: the Talamasca, a secret group that fans of Interview With the Vampire will already have an inkling about, has you under surveillance. But can the watchers themselves be trusted? The first teaser trailer for Talamasca: The Secret Order, AMC’s latest show in its Anne Rice Immortal Universe, suggests that even those on the inside should definitely watch their backs. The trailer heavily features a very blonde Elizabeth McGovern doing her best to recruit Nichol

EE says latest outage fixed after 'technical fault'

EE says latest outage fixed after 'technical fault' EE says it carried out further work overnight to fix a technical problem which left some customers unable to make or receive calls. In the last 24 hours, hundreds of people who use the mobile provider have told the BBC they have experienced service issues. It comes after thousands were left unable to make or receive calls earlier this week due to a technical issue which impacted both mobile and landline phones. On Saturday, a spokesperson f

Where are vacation homes located in the US?

As of 2023, the US has around 142.3 million housing units: roughly one home for every 2.4 people in the country. The vast majority of these homes – 127.5 million – are occupied. The remaining 14.8 million homes are vacant. Of these, around 4.8 million homes, or around 3.5% of the total, are vacant because they’re seasonal, or vacation, homes. I’ve spent a lot of time writing about patterns of housing and home construction in the US, but virtually none of it has been looking at vacation homes sp

Epic Recall, Epic Fail

Expectations were turned upside down as the Epic Recall failed. “Epic Recall, Epic Win!” (大罷免,大成功) was almost an inescapable battle cry for the last few months in Taiwan. Everywhere you went there were bright-eyed bushy-tailed young volunteers asking you if you’d like to recall your local KMT legislator to “protect Taiwan and Counter China” because “they’re all in cahoots with the CCP” and “we have to protect our democracy before its too late.” Well today was Recall Election Day and to my HUGE

OCaml Programming: Correct and Efficient and Beautiful

OCaml Programming: Correct + Efficient + Beautiful# A textbook on functional programming and data structures in OCaml, with an emphasis on semantics and software engineering. This book is the textbook for CS 3110 Data Structures and Functional Programming at Cornell University. A past title of this book was “Functional Programming in OCaml”. Spring 2025 Edition. Videos. There are over 200 YouTube videos embedded in this book. They can be watched independently of reading the book. Start with t

‘Magic: The Gathering’ Swung Into the Spider-Verse at Comic-Con

We’re on the cusp of the release of Magic: The Gathering’s next major set, Edge of Eternities, next week, but that didn’t stop Wizards of the Coast from swinging into San Diego Comic-Con to show off its next big crossover: Spider-Man. And in our first major glimpse at what to expect from the set, we got treated to a whole spider-verse of new cards—and, of course, some very nifty comic book-themed variants to get your wallet’s spidey senses tingling. It’s no surprise that transforming cards are

The First Trailer for ‘Star Trek: Khan’ Lifts the Lid on a Legend

Almost three years ago, Wrath of Khan director Nicholas Meyer shocked the Star Trek universe when he announced that he would be returning to one of Trek‘s most iconic villains in Star Trek: Khan, a scripted podcast revealing the secret life of Khan Noonien Singh. Now, we have our first look at the series—and know when to expect it. During today’s Star Trek Universe panel at San Diego Comic-Con, Paramount revealed the first trailer for Khan, giving us a first listen at its cast in action. Set be

The ‘Star Trek: Starfleet Academy’ Trailer Welcomes You Back to School

Star Trek faces an uncertain future at the moment, as shows that helped define its streaming renaissance end one by one, and little is known about what lies on the horizon (especially thanks to current events in our own world). So it’s perhaps fitting, then, that the one new show we do know is coming is all about welcoming a new generation back to Star Trek‘s fundamental ideals after a similar period of uncertainty: Starfleet Academy. To close out today’s packed Hall H panel at San Diego Comic-

The 21 Best Movies on Amazon Prime Right Now (August 2025)

In Recent years, Netflix and Apple TV+ have been duking it out to have the most prestigious film offerings, but some of the best movies are on Amazon Prime Video. The streamer was one of the first to go around picking up film festival darlings and other lovable favorites, and those movies are all still there in the library, so if they flew under your radar the first time, now is the perfect time to catch up. Our picks for the best movies on Amazon Prime are below. All the films in our guide are

I broke my caseless Pixel but refuse to learn my lesson

Mitja Rutnik / Android Authority I recently broke my Pixel 7. In a span of just a few weeks, I managed to drop it three times, shattering the display to the point it doesn’t even turn on anymore. The final drop was the most damaging: my caseless Pixel plummeted from my pocket straight down onto concrete. Game over. What’s ironic is that back in December, I wrote a post about how I’ve never actually used a proper case but never damaged any of my phones even remotely. I guess I jinxed it, and no

No, Reed Richards Won’t Lead the Avengers in ‘Doomsday’

We may not know much about Avengers: Doomsday right now, but we’ve known for months the Fantastic Four will be a core part of it. Now, we know something else about it: Pedro Pascal’s Reed Richards isn’t taking of the whichever Avengers team he winds up meeting. Earlier in July, Fantastic Four: First Steps director Matt Shakman described Reed to Variety as a man who “goes from being a nerdy scientist to the husband and father who’d do anything to protect his family, to the guy who’s leading the

Frigidaire Mini-Fridges Cause $700,000 in Damage After Smoking, Sparking, Burning, Melting, Overheating, and Catching Fire

Over 600,000 Frigidaire mini-fridges are being recalled over internal electrical components that have short-circuited and ignited, according to an announcement by the U.S. Consumer Product Safety Commission. The faulty fridges have cost over $700,000 in property damage thus far, according to a new recall notice. “Consumers should immediately stop using the recalled minifridges and follow the instructions to receive a refund at www.recallrtr.com/minifridge,” CPSC said in a press release. “Consum

I'm Impressed by This $550 Phone's Camera and Screen, but the Trade-Offs Are Important

CNET's key takeaways The Motorola Edge goes for $550, which is one of the lowest prices out there for a phone with such a bright screen and an impressive 3x telephoto camera The Edge's light weight and curved screen make it very pocketable It comes with only two years of software support and three years of security updates, which is very low for a phone that's over $500 When I tested the $550 Motorola Edge, I was surprised that it includes a telephoto camera at that price, and that it's

Best Home Security Cameras for Apple HomeKit and Siri in 2025

Today’s home security cameras come packed with features, not to mention testing out compatibility with the Apple Home app. We test in several different ways in our homes and CNET offices to really check out everything these cameras can down. Set up and camera quality As we set up cameras, we pay close attention to their design and how fragile or durable it is, as well as what features they have -- for example, how easy it is to change batteries or insert a microSD card. And, of course, we spen

No, the Sun Isn't Safer Than Tanning Beds. Plus, 17 Other Health Myths We're Busting

Cracking your knuckles will cause arthritis. Eggs raise your cholesterol levels. Coffee stunts your growth. For decades, myths like these have influenced consumer decisions, originating from obscure studies or the opinion of a health "influencer". Science has debunked much of this conventional wisdom that percolates as fact. Here are 18 common health myths that everyone needs to stop believing right now. Myth: Exercising at night ruins your sleep Feel free to work out at night if that's your j

Razer Pro Click V2 Vertical Review: A Hybrid Gaming Mouse

Switching to a vertical mouse is a hard sell. Having to change how you use a mouse completely can be an intimidating task, especially with how unnatural the new hand position feels at first—you’re going entirely against the muscle memory you’ve spent years building up. One of the largest challenges to the switch is the initial loss of pointer accuracy. If you’re in an office setting, you may find yourself wandering around a bit or struggling to move your new mouse as quickly as you did before.

Best Noise-Canceling Headphones: Sony, Bose, Apple, and More

Honorable Mentions Now that the majority of new headphones and earbuds offer at least a modicum of noise canceling, it'd be impossible (and unproductive) to list everything we like above. If you haven't yet found your fit, here are more favorites worth considering. Beyerdynamic Amiron 300 for $280: These simple-looking earbuds (8/10, WIRED Recommends) are a great way to experience quiet luxury. They have 10 hours of battery life with noise canceling engaged, and they have some of the best-soun

OnePlus Nord 5 review: selfie-centric midranger

The OnePlus Nord 5 does exactly what the company’s Nord phones have always done: deliver strong specs at a relatively low price. It’s one of the more powerful phones at this price point and should easily outstrip Samsung and Google’s more expensive alternatives. This is a function-over-form phone, one where the key selling points are a powerful processor and long battery life, which are the boring mainstays that tend to matter the most in midrange models like this. The problem for the Nord 5 is

My Pixel 9 Pro is removing all color and warmth from my photos, and I’m sick of it

Rita El Khoury / Android Authority I have long been a proponent of the Pixel camera. From my Pixel 2 XL to the 4 XL, 5, 6 Pro, 7 Pro, 8 Pro, and 9 Pro XL, I’ve used a Pixel as my personal phone and my primary camera since 2017, taking over 10,000 photos in the process. For years, my Pixel phone’s camera was near flawless, at least compared to everything else on the market. It took clear, accurate, and well-detailed photos in every situation. Darkness or light, in movement or steady, up-close or

Users claim Discord's age verification can be tricked with video game characters

Discord’s new age-verification tool may not be as rigorous as it seems, after users reportedly discovered it can be tricked using video game characters. The instant messaging and VoIP platform, commonly used for gaming, implemented an age-check tool earlier this month for UK users in anticipation of a new set of laws aimed at restricting potentially harmful content for under-18s. The Online Safety Act, passed in 2023, requires service providers that host user-generated content to implement age

Want to Improve Your iPhone Call Quality? Try This Hidden Feature

Apple released the first public beta of iOS 26 on July 24, and it brought call screening and more to the iPhone's of developers and beta testers. But you don't need to be a developer or beta tester to use a hidden iPhone feature that can make your calls clearer for the person on the other end. The feature is called Voice Isolation. Apple introduced Voice Isolation in 2023 with iOS 16.4. The tech company added the feature, alongside Wide Spectrum, to FaceTime calls with iOS 15 in 2021, but only

Brave and AdGuard now block Microsoft Recall by default

The Brave web browser and the ad-blocker AdGuard have both announced that they are blocking Microsoft Recall by default . For the uninitiated, Recall is an AI-powered tool that accompanies Windows 11 and it records everything on a PC's screen . It's pretty obvious why a privacy-minded web browser like Brave and an ad-blocker would make this move. AdGuard said the decision was made due to a "privacy concern," going on to say that "the very idea of background screen captures is unsettling." A blo

Steve Jobs' cabinet

I was taking apart an old MacBook Pro recently. I always said this is the best laptop I ever had. It was bought in 2013, and did me 10 years, until I gave it to my Mam. In 2025, it developed its first fault, a buzzy speaker, and I opened it up to replace the speaker. I was curious to see the inside, and on opening it, I was reminded of what Steve Jobs, relating a lesson from his father on cabinet-making: “When you’re a carpenter making a beautiful chest of drawers, you’re not going to use a pi

A Union Pacific-Norfolk Southern combination would redraw the railroad map

Combining Union Pacific and Norfolk Southern into the first transcontinental railroad in the U.S. would create a 52,215-mile colossus that could offer seamless service from coast to coast, bypassing longtime interchange choke points in Chicago and at gateways along the Mississippi River. The two railroads confirmed today that they are in advanced merger discussions. The talks, they said, may not result in a deal. Plus, there’s the potential for a bidding war if BNSF Railway, UP’s Western rival,

Experimental surgery performed by AI-driven surgical robot

Intuitive Surgical, an American biotechnology company, introduced DaVinci surgical robots in the late 1990s, and they became groundbreaking teleoperation equipment. Expert surgeons could operate on patients remotely, manipulating the robotic arms and their surgical tools based on a video feed from DaVinci’s built-in cameras and endoscopes. Now, John Hopkins University researchers put a ChatGPT-like AI in charge of a DaVinci robot and taught it to perform a gallbladder-removal surgery. Kuka sur

9to5Mac Daily: July 25, 2025 – Public betas are here

Listen to a recap of the top stories of the day from 9to5Mac. 9to5Mac Daily is available on iTunes and Apple’s Podcasts app, Stitcher, TuneIn, Google Play, or through our dedicated RSS feed for Overcast and other podcast players. Sponsored by Bitwarden: Check out Bitwarden Password Manager, featuring a new Apple Watch authenticator integration, secure autofill on Safari and iOS apps, and enterprise-grade security tools that help you manage credentials with confidence. New episodes of 9to5Mac D

Steve Jobs' Cabinet

I was taking apart an old MacBook Pro recently. I always said this is the best laptop I ever had. It was bought in 2013, and did me 10 years, until I gave it to my Mam. In 2025, it developed its first fault, a buzzy speaker, and I opened it up to replace the speaker. I was curious to see the inside, and on opening it, I was reminded of what Steve Jobs, relating a lesson from his father on cabinet-making: “When you’re a carpenter making a beautiful chest of drawers, you’re not going to use a pi

Programming vehicles in games

wassimulator; I make stuff Programming Vehicles in Games The fundamental principles needed to get a functional vehicle in your game. From my talk at the Better Software Conference on July the 13th, 2025. est. reading time: 45 minutes Watch the video of the talk here: Table of Contents Cars are everywhere in games. They're a staple element of many genres, even in games that aren't strictly about cars. If a game world involves any sort of traversal, chances are there's a vehicle in it (unless y

Comcast’s fix for streaming service overload is in your cable box

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Streaming has become a tangled web of subscriptions, and now Comcast says it can help by putting all your services into one hub. Comcast is launching a new hub on its set-top boxes, called the StreamStore, where you can buy and manage subscriptions for more than 450 streaming apps and channels. The StreamStore lives within Xfinity’s Xumo Stream Box