ReRAM – Resistive random-access memory


Resistive random-access memory (ReRAM) is a promising new technology. A number of different companies are developing this new technology. Resistive Random Access Memory (RRAM/ReRAM) is a new type of memory designed to be non-volatile. ReRAM  has a great potential for high storage density, greater read and write speeds, lower power usage, and cheaper cost than flash memory. Due to limits of the materials flash memory Flash memory cannot continue to scale and will be replace by ReRam devices. More detailed information can be found here.


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Data Recovery

When you didn’t implement a good data backup strategy.

Data recovery basically means that someone has to try to salvage inaccessible data from a corrupted or damaged storage site. Hard drives, Solid State disks and even SD flash cards sometimes crash, and it’s always at the time when we need it to work to most so what do you do?

There are some steps you can take before you go out and hire a recovery expert to try and salvage your data which sometimes they are successful and sometimes they aren’t at salvaging files from storage media like hard disk drives, solid state drives, USB flash drives, CD’s, DVD’s, and magnetic tapes.

Data recovery can be needed for various things, the most critical is application data the operating system and applications can be re-installed but many times the application data can not be unless it has been backed up. There are many reasons for disk or storage media failure. Most consumer devices have less than a 100% duty cycle (More like 50%) meaning that they aren’t designed for continuous use. Consumer devices also usually have less stringent manufacturing tolerances and those for commercial use. Storage media is rated by mean time between failure (MTBF) but the failure can also be caused by physical damaged such as dropping the media or electro-static discharge (ESD) caused my touching the device without using an ESD wrist strap. Viruses, Mal-Ware, Root-Kits and other software bugs are another cause and a major on for the need to back up your data frequently and use a good anti-virus software.

If you have the most common type of data recovery it will be because of an operating system failure and in that case the technician will try to get your files on to an other device. If you have a drive level failure and/or a compromised file system or hard drive disk failure the data may not be as easy to recover and read. In this case the technician would try to repair the file system itself using commands such as fixmbr, chkdsk, systemfile checker, etc for windows and other commands for UNIX or Linux. If the hard drive itself has failed then there is a specialized disk imagining procedure that can be undertaken to try to recover every readable bit of the data that can be reclaimed. Then the files can possibly be reconstructed.

Usually if your computer crashes and you need a data recovery expert you will take the computer to them, but other times they have to do their work remotely either because the system is just too big to take in or just too far away for it to be possible. This of course requires a lot more skill and expertise in the field.

If your hard drive has failed, then there are four phases of data recovery. Repair the hard disk drive, image the drive to a new drive, logical recovery of files and repair retrieved files.

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Julius Williams Garland, McKinney, Dallas, T

New Optical Storage Technology that can store up to 360TB on a Quartz Disc the size of a coin!

Optical Data Storage Scientists squeeze 360TB on to a Quartz Disc. Data can now be stored forever.

Scientists from UoS Optoelectronics Research Center (ORC) have developed the recording and retrieval processes of five dimensional (5D) digital data by femtosecond laser writing on nanostructured glass.

Scientists at the University of Southampton have made a major step forward in the development of digital data storage that is capable of surviving for billions of years. Using nanostructured glass, scientists from the University’s Optoelectronics Research Center (ORC) have developed the recording and retrieval processes of five dimensional (5D) digital data by femtosecond laser writing.

The storage allows unprecedented properties including 360 TB/disc data capacity, thermal stability up to 1,000°C and virtually unlimited lifetime at room temperature (13.8 billion years at 190°C ) opening a new era of eternal data archiving. As a very stable and safe form of portable memory, the technology could be highly useful for organizations with big archives, such as national archives, museums and libraries, to preserve their information and records. The technology was first experimentally demonstrated in 2013 when a 300 kb digital copy of a text file was successfully recorded in 5D. Now, major documents from human history such as Universal Declaration of Human Rights (UDHR), Newton’s Opticks, Magna Carta and Kings James Bible, have been saved as digital copies that could survive the human race. A copy of the UDHR encoded to 5D data storage was recently presented to UNESCO by the ORC at the International Year of Light (IYL) closing ceremony in Mexico.

The documents were recorded using ultrafast laser, producing extremely short and intense pulses of light. The file is written in three layers of nanostructured dots separated by five micrometers (one millionth of a meter). The self-assembled nanostructures change the way light travels through glass, modifying polarization of light that can then be read by combination of optical microscope and a polarizer, similar to that found in Polaroid sunglasses. Coined as the ‘Superman memory crystal’, as the glass memory has been compared to the “memory crystals” used in the Superman films, the data is recorded via self-assembled nanostructures created in fused quartz. The information encoding is realized in five dimensions: the size and orientation in addition to the three dimensional position of these nanostructures. The teams are now looking for industry partners to further develop and commercialize this ground-breaking new technology.


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Flash and Hybrid Storage Arrays

Data Center storage is changing a a rapid pace. This is exciting and challenging with all of the storage options available now. I created this blog to be informative to those who are decision makers and those who utilize and work with these systems on a daily basis. Flash Storage has become main stream now as the cost of flash storage has diminished significantly in the last few years and reliability of flash has inversely increased .

Tegile’s concept of Buy once and refresh forever is great news for companies that have high needs for performance and capacity, but prohibited a budget to support these needs. With Tegile IntelliCare™ Lifetime Storage, you get a technology refresh of your entire storage system as part of your maintenance contract. When your new system is installed, a new Lifetime Storage program can be used with zero CAPEX outlay.

Tegile offers an impressive array of products such as the new Flash arrays line T4500, T4600, T4700 and T4800

Hybrid Arrays T4100     T4200     T4530     T4630     T4730     T4760     T4860

Tegile HD (High Density) Flash Arrays T10KHD-4-50     T10KHD-4-150     T10KHD-8-100     T10KHD-8-300

Tegile’s Intelliflash CP line that uses multiple controllers to scale horizontally as well as vertically.

The IntelliFlash Arrays are powered by Tegile’s IntelliFlash software architecture

And to top things off Tegile offers Intellicare which includes Cloud Analytics, Lifetime Storage and Tegiles Flash 5 Commitment

Pure Storage makes top rated All-Flash storage systems. You consolidate your workloads in 10x less space and get 10x better performance with Pure Storage storage arrays from Tier 1, Tier 2, Dev/Test and Big Data & Analytics.Pure Storage offer an impressive line of products check out their offering here.  The product line includes the Flash Array //M series which is comprised of the //10, //20, //50, //70 Flash Storage systems. Pure Storage stated that in its first year of shipments the Flash //m delivered 99.9999% availability – inclusive of non-disruptive upgrades and maintenance. This is impressive to say the least. And Pure Storage says that NVMe will be arriving soon and the sky’s the limit.

Tintri is another one of the newer top players in the storage arena they offer flash and hybrid storage systems. Tintri does away with Logical Unit Number (LUNs) and uses VM Aware store which uses vDisks. There are numerous advantages of using VM aware storage such as more efficient utilization of capacity. For example when a VM is scaled back capacity is automatically recaptured and made available for use by other VM’s. Protection schemas can be based on data type or even individual VMs. These policy based definitions can be applied to new storage in a non-disruptive fashion and finally thin provisioning makes adding capacity more efficient by not requiring reconfiguration of VMs or applications and therefore no down time.

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Julius Williams Garland, McKinney, Dallas, TX