Flash memory News
November 16, 2016
Flash storage is over-rated. Well, if not over-rated, then certainly more costly than many would have us believe and price parity with spinning disk is a very, very long way off. Those are the ...
November 09, 2016
DDN Lustre file storage adds multi-level security to Lustre, and it announced IME240 NVMe flash is available on 2U commodity hardware or as software-only.
October 18, 2016
Magneto-resistive RAM chipmaker Everspin Technologies is trying to make sure its in-memory magnetic storage technology will spin into the future. The Chandler, Ariz.-based vendor this month raised ...
September 30, 2016
Dell EMC plans to “stay the course” with its flash storage portfolio despite overlapping products at the midrange and low end, an executive at the newly combined company confirmed. Daniel Cobb, a ...
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Healthcare VDI environments can work well with flash storage. Expert Brien Posey looks at issues to consider, such as whether to choose an all-flash array or flash storage tier. Continue Reading
Server-side caching, or flash storage installed in the server itself, is deployed to accelerate application performance. Placing the flash as close to the application as possible reduces latency and improves performance.
Over the past couple of years, there has been a lot of development in this area, and today, there are a number of ways that you can insert flash storage into a server. For example, you can use SATA form factor SSDs that install in place of traditional hard disk drives. Or you can use flash storage that connects directly to the PCIe bus. An emerging option is to attach flash storage directly to the server's memory channel via dual in-line memory module (DIMM) slots. Each, of course, comes with strengths and weaknesses.
There are also a variety of standards emerging for server-side caching that are important to understand when selecting a product.
This Drill Down on server-side flash will compare and contrast the variety of ways that you can deploy the technology today to help readers better understand the pros and cons to each approach. It will also explain when server-side caching is a better (or worse) alternative to an all-flash or hybrid-flash storage array. There's so much going on in this space today that it can be hard to stay on top of it all. This Drill Down will help.Continue Reading
As petabytes of data make hospital data storage a struggle for health systems, flash storage technology holds promise -- and in some cases, pulls ahead of the cloud. Continue Reading
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Flash storage is the fastest-growing segment of the storage market, and there are a number of emerging drive technologies and flash standards that you should be aware of. The biggest news on the drive technology front that's happening today is the introduction of 3D NAND chips. These chips are stacked vertically to increase the density of cells on a single chip, which in turn increases overall capacity. Another key development is the use of TLC, or triple-level cell, flash in enterprise arrays, due to more sophisticated flash controllers that can balance the wear on these less expensive drives. This is becoming common today and it will further reduce flash costs, making the technology more appealing to a wider variety of organizations. It will also bring flash even closer to cost parity with hard disk drive systems, which may help to drive the popularity of all-flash arrays. As noted above, there are also a number of new flash drive standards aimed at ensuring that chips and drives from multiple vendors are compatible -- SATA Express and nonvolatile memory express. Our Drill Down on new drive technologies and standards will put these SATAe and NVM Express standards in context and explain the importance of both SATAe and NVM Express. You'll also learn about how NAND chips are evolving and possible successors to the technology. Continue Reading
EMMC host controllers may have a hard time handling advances in flash memory technology, like 3D NAND and newer connection interfaces, and competition from new markets. Continue Reading
Many common devices, like your cell phone and tablet, use eMMC flash for storage. But the internet of things will soon make eMMC a major part of nearly every enterprise. Continue Reading
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The latest eMMC specification puts the tiny flash storage devices on a level playing field with many SSDs when it comes to speed -- but eMMC is still the smallest flash drive. Continue Reading
In this Ask the Expert column, learn the most important storage technologies, including data deduplication and flash, to boost medical imaging archive systems. Continue Reading
If you're using a flash-based storage system, you're familiar with caching and tiering to accelerate data. Storage tiering is used in hybrid flash storage systems to separate active and inactive data. Active data is kept on the flash tier, while inactive data is moved to a less-expensive storage tier. If the data becomes "hot" once again, it is moved back to the flash tier. Because data only lives on one tier at a time, tiered architectures need to have some kind of redundancy built into them.
In caching, data is copied or mirrored from one tier to another, so active data is on multiple tiers at the same time. If the active data is no longer needed, the cache will just create flash space for new data sets to use.
Vendors implement tiering technology in various ways. Some even have a "flash-first" approach that puts all data on flash before it is moved to a hard disk tier to become inactive. Users therefore have to be careful not to overprovision flash in these environments.
The decision to use tiering or caching depends on a variety of factors, such as the number of applications that require access to high-performance storage resources, the I/O patterns of these applications and your budgetary constraints.
Learn when to use each of these technologies in your own environment.Continue Reading
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NVMe improves the performance of flash storage, driving consumers to use it for performance problems even if it only leads to minimal gains in latency or throughput. Continue Reading
The amount and format of clinical information running through telehealth technology can lead to video conferencing hiccups. Flash storage is an option to consider in such cases. Continue Reading
Replacing slow spinning disks with faster flash storage affords ample benefits, but it doesn't remove the bottleneck. It just moves it somewhere else. Continue Reading