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Cloud

Is It Time For NoSQL 2.0? 145

Posted by Unknown Lamer
from the hyperhack-the-hypergibsoncube dept.
New submitter rescrv writes "Key-value stores (like Cassandra, Redis and DynamoDB) have been replacing traditional databases in many demanding web applications (e.g. Twitter, Google, Facebook, LinkedIn, and others). But for the most part, the differences between existing NoSQL systems come down to the choice of well-studied implementation techniques; in particular, they all provide a similar API that achieves high performance and scalability by limiting applications to simple operations like GET and PUT. HyperDex, a new key-value store developed at Cornell, stands out in the NoSQL spectrum with its unique design. HyperDex employs a unique multi-dimensional hash function to enable efficient search operations — that is, objects may be retrieved without using the key (PDF) under which they are stored. Other systems employ indexing techniques to enable search, or enumerate all objects in the system. In contrast, HyperDex's design enables applications to retrieve search results directly from servers in the system. The results are impressive. Preliminary benchmark results on the project website show that HyperDex provides significant performance improvements over Cassandra and MongoDB. With its unique design, and impressive performance, it seems fittng to ask: Is HyperDex the start of NoSQL 2.0?"
Cloud

Why Corporate Cloud Storage Doesn't Add Up 137

Posted by Soulskill
from the put-your-data-in-the-buzzword dept.
snydeq writes "Deep End's Paul Venezia sees few business IT situations that could make good use of full cloud storage services, outside of startups. 'As IT continues in a zigzag path of figuring out what to do with this "cloud" stuff, it seems that some companies are getting ahead of themselves. In particular, the concept of outsourcing storage to a cloud provider puzzles me. I can see some benefits in other cloud services (though I still find the trust aspect difficult to reconcile), but full-on cloud storage offerings don't make sense outside of some rare circumstances.'"
Biotech

Russian Scientists Revive Plant From 30,000-Year-Old Seeds 162

Posted by Soulskill
from the to-make-a-new-type-of-vodka dept.
An anonymous reader writes "It was an Ice Age squirrel's treasure chamber, a burrow containing fruit and seeds that had been stuck in the Siberian permafrost for over 30,000 years. From the fruit tissues, a team of Russian scientists managed to resurrect an entire plant in a pioneering experiment that paves the way for the revival of other species. The Silene stenophylla is the oldest plant ever to be regenerated, the researchers said, and it is fertile, producing white flowers and viable seeds. ... 'The squirrels dug the frozen ground to build their burrows, which are about the size of a soccer ball, putting in hay first and then animal fur for a perfect storage chamber,' said Stanislav Gubin, one of the authors of the study, who spent years rummaging through the area for squirrel burrows. 'It's a natural cryobank.'"
Power

Making a Better Solar Cooker 167

Posted by Soulskill
from the making-high-tech-low-tech dept.
New submitter jank1887 writes "Back in 2010, the aid organization Climate Healers gave a number of solar-powered cookstoves to rural Indian villages. The stoves were rejected by the communities, mainly because they were useless when they were wanted most: for the evening meal sometimes after the sun goes down, and for breakfast before the sun has risen. Following this, the group issued a challenge to EngineeringForChange. Details of the challenge include the need to provide 1kW of heat at about 200C for two hours in both early morning and late evening, and the users should be able to cook indoors, while sitting. A number of groups, mainly at U.S. and Indian engineering institutions, accepted the challenge, and developed potential solutions. Now, almost a year later, the ten finalist designs have been selected. The actual papers have been posted to the E4C challenge workspace. The goals of most of the designs are to keep the technology simple, although there are a few exceptions, and many include sand-, oil-, and salt-based concentrated thermal storage. Many reports include some level of discussion on the social and economic considerations, barriers to acceptance and sustainability, and how to overcome initial resistance to adoption."
Bug

SSD Latency, Error Rates May Spell Bleak Future 290

Posted by timothy
from the everything-counts-in-large-amounts dept.
Lucas123 writes "A new study by the University of California and Microsoft shows that NAND flash memory experiences significant performance degradation as die sizes shrink in size. Over the next dozen years latency will double as the circuitry size shrinks from 25 nanometers today, to 6.5nm, the research showed. Speaking at the Usenix Conference on File and Storage Technologies in San Jose this week, Laura Grupp, a graduate student at the University of California, said tests of 45 different types of NAND flash chips from six vendors using 72nm to 25nm lithography techniques showed performance degraded across the board and error rates increased as die sizes shrunk. Triple-Level NAND performed the worst, followed by Multi-Level Cell NAND and Single-Level Cell. The researchers said MLC NAND-based SSDs won't be able to go beyond 4TB and TLC-based SSDs won't be able to scale past 16TB because of the performance degradation, so it appears the end of the road for SSDs will be 2024."
Data Storage

Ask Slashdot: Dividing Digital Assets In Divorce? 458

Posted by timothy
from the don't-forget-your-malware dept.
An anonymous reader writes "I am a long time Slashdotter and currently find myself in the beginning of a divorce process. How have you dealt with dispersing of shared data, accounts and things online in such a situation? Domains, hosting, email, sensitive data backups and social media are just a few examples."
Privacy

Ask Slashdot: How To Deal With Refurbed Drives With Customer Data? 385

Posted by timothy
from the first-scan-for-gossip dept.
An anonymous reader writes "I just received 3 'refurbished' SATA drives from Newegg. All 3 had some sort of existing partition. Most appeared to be factory diagnostic partitions, but one had a full Dell Windows XP install complete with customer data. How big a deal is this? Should I contact someone besides Newegg about this?"
Cloud

Google Close To Launching Cloud Storage 'Google Drive' 205

Posted by timothy
from the when-gdrive-isn't-good-enough-for-you dept.
MrSeb writes with this selection from ExtremeTech: "Why doesn't Google offer a cloud storage service to rival Dropbox, Box.net, or Microsoft's SkyDrive? Google has the most internet-connected servers in the world, the largest combined storage of any web company, and already offers photo storage (Picasa), document storage (Docs), music storage (Music), but for some reason it has never offered a unified Google Drive. According to people familiar with the matter, however, our wait is almost over: Google's Hard Drive In The Sky is coming soon, possibly 'within weeks.' Feature-wise, it sounds like Google Drive will be comparable to Dropbox, with free basic storage (5GB?) and additional space for a yearly fee."
Data Storage

New Technique Promises Much Faster Hard Drive Write Speeds 148

Posted by Unknown Lamer
from the sharks-in-my-drives dept.
MrSeb writes "Hold onto your hats: Scientists at the University of York, England have completely rewritten the rules of magnetic storage (abstract; full paper paywalled). Instead of switching a magnetic region using a magnetic field (like a hard drive head), the researchers have managed to switch a ferrimagnetic nanoisland using a 60-femtosecond laser. Storing magnetic data using lasers is up to 1,000 times faster than writing to a conventional hard drive (we're talking about gigabytes or terabytes per second) — and the ferrimagnetic nanoislands that store the data are capable of storage densities that are some 15 times greater than existing hard drive platters. Unfortunately the York scientists only detailed writing data with lasers; there's no word on how to read it."
Data Storage

HDD Price Update: How the Thai Floods Have Affected Prices, 3 Months Later 220

Posted by Soulskill
from the leveling-off dept.
New submitter jjslash writes "The hard disk drive supply chain was hit hard late last year when a series of floods struck Thailand. The Asian country accounts for about a quarter of the world's hard drive production, but thousands of factories had to close shop for weeks as facilities were under water, in what is considered the world's fourth costliest natural disaster according to World Bank estimates. That's on top of the human cost of over 800 lives. TechSpot has monitored a number of mobile and desktop HDDs to get a better overview of how the situation has developed in the last three months."
PlayStation (Games)

Should Next-Gen Game Consoles Be Upgradeable? 348

Posted by Soulskill
from the downloadable-hardware-unlockers dept.
MojoKid writes "Historically, console add-ons that boosted the performance of the primary unit haven't done well. Any attempt to upgrade a system's core performance risks bifurcating the user base and increases work developers must do to ensure that a game runs smoothly on both original and upgraded systems. The other reason is that a number of games rely on very specific hardware characteristics to ensure proper operation. In a PC, swapping a CPU with 256K of L2 for a chip with 512K of L2 is a non-issue assuming proper platform support. Existing software will automatically take advantage of the additional cache. The Xbox 360, on the other hand, allows programmers to lock specific cache blocks and use them for storing data from particular threads. In that case, expanding the amount of L2 cache risks breaking previous games because it changes the range of available cache addresses. The other side of the upgrade argument is that the Xbox 360 has been upgraded more effectively than any previous console; current high-end versions ship with more than 10x the storage of the original, as well as support for HDMI and integrated WiFi. It would also forestall the decline in comparative image quality between console and PC platforms."
Data Storage

New Intel 520 Series SSD Taps SandForce Controller 72

Posted by Soulskill
from the numbers-getting-bigger dept.
crookedvulture writes "Intel continues to partner with third-party controller makers for high-end SSDs. Its new 520 Series drives pair the latest SandForce controller with Intel's own firmware and 25-nm NAND. HotHardware, Tech Report, and PC Perspective all have reviews of the drive, and the verdict is pretty consistent. While the Intel 520 Series offers slightly better performance than competing SandForce solutions, it also costs 30-40% more. That's a steep margin even considering the Intel SSD's five-year warranty."
KDE

Details Emerge About Spark Linux-Based Tablet 188

Posted by samzenpus
from the check-it-out dept.
MojoKid writes "There's a new tablet in town called the Spark. The Linux-driven tablet, based on the Zenithink C71 and KDE was unveiled by developer Aaron Seigo recently. The tablet will be available for pre-order this week and will start shipping worldwide in May. In terms of specifications, the 7-inch (800x480) multi-touch slate will run a 1GHz AMLogic ARM processor and Mali-400 GPU, sport 512MB of RAM, 4GB of internal storage (with a microSD slot for expandability), 802/11b/g WiFi, a pair of USB ports, a front-facing 1.3MP webcam, and an audio jack. The UI of choice is Plasma Active and there will apparently be a content store where developers can peddle their wares and users can snag software."
Cloud

Megaupload Lawyer Says User Data Will Be Held For Two Weeks 94

Posted by samzenpus
from the on-second-thought dept.
First time accepted submitter AlistairCharlton writes "Users' data on the seized Megaupload website will be saved for two further weeks, according to the website's lawyer, despite being shut down by US authorities. From the article: 'Megaupload lawyer Ira Rothken reportedly told tech blog TorrentFreak.com that users' data would be saved for at least another two weeks, after it was previously thought that the data would be deleted by Thursday, 2 February.'"

Ask yourself whether you are happy and you cease to be so. -- John Stuart Mill