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Capacitor hold up times in 2.5" military SSDs
is remanence in persistent memory a new security risk?
where are we heading with memory intensive systems?
what were the big SSD memory architecture ideas in 2016?
miscellaneous consequences of the 2017 memory shortages
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the impact of file metadata on applications performance
Editor:- October 5, 2016 - The interdependency of storage software, physical storage and applications performance is one of the constantly recurring themes in the SSD era.

When you change one variable - such as the assumption that storage has a single type of characteristic - the old west 6 shooter rotational model which underpinned all data IO requests in legacy systems software - to a faster machine gun model - with futuristic options verging towards the light saber and photonic data shots - thanks to solid state storage - then data systems architects have more degrees of freedom around which they can optimise system effectiveness.

A recent blog from Primary Data - Accelerate Applications by Offloading File Metadata Operations - gives a top level view of why it can be useful to offload file metadata operations from storage arrays. Among other things the blog reminds us that...

"Storage array CPUs can spend significant processing cycles keeping up with all the metadata operations such as managing file permissions and tracking open and close events that might otherwise be used for processing data I/O. In some cases, this can bring both storage and client application performance to a crawl." the blog

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what were the big SSD ideas which emerged in 2016?
"From Mangstor's perspective, we are heavily invested in NVMe over Fabric (NVMf) technology for which our NX-Series Storage Arrays are based.

With the ratification of the NVMf specification this past June, flash devices such as SSDs and storage arrays can now communicate over RDMA networks (such as RoCE or InfiniBand), delivering the same high performance, low latency benefits as local attached NVMe.

Storage arrays based on NVMf, such as our award-winning NX6320, avoid the lower level SCSI transport layer, which results in faster data throughput and accelerated data access making NVMf solutions ideal for compute-intensive HPC and database applications."

Scott Harlin, Director of MarComms - Mangstor

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past Octobers in SSD market history
October 2001 Adtron was named one of America's entrepreneurial growth leaders by Inc magazine in its annual ranking of the Inc 500, the nation's fastest-growing private companies.
October 2003 Memtech announced that its Wolverine - a military 5GB 2.5" 9.5mm high PATA SSD designed for use in submarines, space vehicles and aircraft carriers - was guaranteed to exceed a minimum of 8 million erase/write cycles.
October 2004 Sun Microsystems signed an agreement to resell rackmount SSD accelerators from Texas Memory Systems. The RamSan product line from TMS was later acquired by IBM and renamed to FlashSystems.
October 2006 STEC acquired UK SSD maker Gnutek. Gnutek's Maracite - a 3.5" FC flash SSD with R/W IOPS performance of 52K and 18K - provided core founding IP for what later became STEC's most successful enterprise focused SSD product line - the ZeusIOPS.
October 2007 Samsung developed the world's first 64Gb MLC NANDflash memory chip using 30nm technology.
October 2010 DensBits got series B funding for its Memory Modem (adaptive DSP) controller IP.
October 2011 LSI announced it would acquire SandForce (the best known SSD controller company).
October 2012 Hybrid storage arrays from Tegile Systems were part of the technology which supported the US Presidential Debate at Lynn University.
October 2013 McObject showed that its in-memory database operating in NVDIMMs could survive the power cord being pulled during intensive memory operations.

do custom SSDs have to cost more?
custom SSDs Few questions in the SSD market have simple answers.

Do custom SSDs cost have to cost more?

Some thoughts about SSD customization.
click to see directory of SAS SSD companies .
storage security articles and news
SSD security ..
read the article on SSD ASAPs
hybrid arrays ..
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SSD articles .....
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SSD news - October 2016

more pages like this? - archived storage news before and after
Toshiba is a key SSD supplier for NetApp FIPS certified products

Editor:- October 25, 2016 - Toshiba today announced that its PX04S 12Gbit/s SAS SSDs, which are FIPS 140-2 Level 2 certified, are shipping in NetApp's hybrid FAS and E-Series systems.

SSDs outsell HDDs in European storage distribution channels

Editor:- October 18, 2016 - "Revenues from sales of oem SSDs through Western European distribution channels in September 2016 again exceeded revenues from oem HDDs" - is the key message from a research note posted by Mehari Goitom, Enterprise Account Manager - Context World.

Mehari says - "This confirms SSDs as the leading storage technology in the dedicated storage market for the 3rd calendar quarter as large enterprise customers use them to replace HDDs." the article

See also:- storage market research

FalconStor offers new pricing model for use with cloud

Editor:- October 17, 2016 - FalconStor Software today announced a new version of its FreeStor software - FreeStor for the hybrid cloud - which the company says has a new pricing model which removes the barrier of cloud adoption. Among other things organizations now pay only for licensing of their primary instance of data, not the total amount of storage consumed.

See also:- Exiting the Astrological Age of Enterprise SSD Pricing, SSDs in the cloud

Pure says it's ready to ship petabyte SSDs

Editor:- October 12, 2016 - Pure Storage today announced availability of its of petabyte-scale rackmount SSD - the FlashArray//m - which in 7U includes 512TB of raw flash delivering 1.5PB of effective capacity (based on its customer use metrics).

Re resilience Pure says this product family has 99.9999% availability across the installed base, which equates to only 31.5 seconds of downtime on average per year.

Editor's comments:- In my 2013 article - impacts of the enterprise SSD software event horizon - I discussed the improving efficiencies we could still expect to see in pure SSD arrays as more layers of ancient HDD architecture were removed from archeologically stratified software stacks.

Pure disclosed in a 2015 white paper - Building HA enterprise flash storage from commodity components (pdf) - that in real-world applications its customer base averaged 5.4x more effective storage than the physical storage in the system excluding gains from thin provisioning. And that provides some context for their effective to raw flash capacity ratio of 3 in the press release - which seems reasonable after you take into account that some raw capacity is "lost" due to reliability strategies.

You can also see the signficance of 30 seconds in the above pdf too.

You can get a comparitive idea of the elasticity of SSD vendor promises about effective capacity by clicking on the link which mines archived news.

See also:- petabyte SSDs

Micron wraps up funding to own all Inotera

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RAM - really?
Editor:- October 12, 2016 - Micron's long delayed plan (announced in December 2015) to complete its ownership of Inotera now has an end date in sight - December 6th, 2016.

Inotera announced yesterday Micron Semiconductor Taiwan Co. Ltd. and Inotera signed a syndicated loan agreement of NT$80BN with a group of banks which will enable MST to acquire all of the issued and outstanding common shares of the Inotera for cash.

hard disk drives news and articles
rust buckets?

recently shipped HDD capacity averages 1.7TB

Editor:- October 11, 2016 - the average capacity of hard drives shipped by Seagate in the quarter ended September 30, 2016 was 1.7TB according to a preliminary financial report from the company today.

NVMe flash as RAM - new software from OmniTier

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SSD software
Editor:- October 5, 2016 - OmniTier today announced the availability of its software MemStac which for cloud workloads can shrink DRAM requirements by about 8x using standard NVMe SSDs as caches for DRAM.

MemStac supports up to 4TB cache capacity per server node at a fraction of the cost of pure DRAM-only solutions.

OmniTier says that SSD performance in a standard Intel dual-socket server is upto 3.7M operations per second (100% Get operations) and 3.2M operations per second (80% Get operations / 20% Set operations) for 100 byte records.

These levels of performance are achieved with less than 1mS average latency. In addition, MemStac seamlessly delivers 10GbE network-limited throughput with typical workloads exceeding 250 bytes in average size, similar to the DRAM-only open-source solutions.

storage security articles and news
SSD security
Maxim samples deep cover security chip

Editor:- October 5, 2016 - A nonvolatile, decrement-only counter with authenticated read and tiny amount - 8Kbits - of EEPROM for user data, keys, and certificates are part of an interesting DeepCover Secure Authenticator chip which is now sampling and was announced today by Maxim .

Kaminario offers free iPads to boost K2 tryouts

high availabaility SSD arrays
Editor:- October 4, 2016 - I saw a promotional email offer from Kaminario today which I think may backfire as it seems to be in direct conflict with the ethical principles of buyers in many large organizations.

The promotional email says "Test and evaluate a Kaminario K2 all flash array with up to 50TB capacity for as little as $1.25 per GB and iPAD management console for 45 days. Try it today and the iPad is yours to keep."

There's also a supporting sign up web page for the offer.

Editor's comments:- I think the offer will turn off buyers in big companies - because the inducement of a free iPad to take part in the evaluation sounds like a personal gift rather than having any benefit for the evaluating organization. Seems to me that the marketers in Kaminario have been reading too many consumer marketing comics.

See also:- Marketing Views

Rambus and Xilinx partner on FPGA in DRAM array technology

storage glue chips
storage glue chips
Editor:- October 4, 2016 - Rambus recently announced a license agreement with Xilinx that covers Rambus' patented memory controller, SerDes and security technologies.

Rambus is also exploring the use of Xilinx FPGAs in its Smart Data Acceleration research program. The SDA - powered by an FPGA paired with 24 DIMMS - offers high DRAM memory densities and has potential uses as a CPU offload agent (in-situ memory computing).
What happened before?
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I noticed that whenever I repeated the power off and power back on again cycling (into what we'd now call a "cold boot" condition) most of the contents of the RAM looked similar to what they had been before, instead of scrambled which is what I expected.
does storage class memory pose new new security risks?

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10 TB SATA / 2 TB microSATA
1 TB mSATA & M.2 / 8 TB VPX & PXIe
military SSDs from Foremay

do you understand all the
words in SSD headlines?
SSD jargon explained
SSD jargon

AccelStor NeoSapphire  all-flash array
1U enterprise flash arrays
InfiniBand or 10GbE iSCSI or 16G FC
NeoSapphire series - from AccelStor

related guides

industrial mSATA SSD
industrial grade mSATA SSDs
>2 million write cycles per logical block.
from Cactus Technologies

related guides
All the marketing noise coming from the DIMM wars market (flash as RAM and Optane etc) obscures some important underlying strategic and philosophical questions about the future of SSD.
where are we heading with memory intensive systems?

Targa Series 4 - 2.5 inch SCSI flash disk
2.5" removable military SSDs
for airborne apps - GbE / SATA / USB
from Targa Systems

related guides
I think it's not too strong to say that the enterprise PCIe SSD market (as we once knew it) has exploded and fragmented into many different directions.
what's changed in enterprise PCIe SSD?
NVMe is the new SCSI.

Over a 30 year period SCSI was adopted by many markets, rejuvenated and then supported by other connectivity fabrics.

NVMe has done something similar in a much shorter span of time - around 5 years.
2.5" NVMe PCIe SSDs

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