founded in Ireland in
2013 when the
ADAPT project was spun out of the National Digital Research Centre in Ireland.
The technology is the result of
13 years' work
(pdf) on flash memory endurance by Joe Sullivan
SSDs using non-volatile memory are rapidly taking over from hard disks. However
SSDs wear out and this is holding back their complete replacement of hard disks.
NVMdurance' trials with leading manufacturers have proven to significantly
extend the life of SSDs. NVMdurance has offices in Limerick, Ireland and San
in SSD? - NVMdurance|
- May 23, 2016
On a handful of occasions in more than
writing about the SSD market I've spoken to companies which I known
instinctively would change the way that the whole market thinks about itself.
NVMdurance is one of those companies.
While we have seen many
companies in the past 5 years telling us about the different ways in which their
technologies can leverage the mysterious
in an SSD controller
context - most of those have leveraged combinations of techniques such as
adaptive R/W pulse modication,
and big controller
application or array awareness which become so closely tied to a particular
product line or application space that the benefits derived from each element in
the mix cannot be easily or quickly extracted and migrated to other
NVMdurance has created a multigenerational and
sustainable characterization methodology which - when applied to any
kind of flash -and with the use of a lightweight firmware manager - enables
endurance to be restated with a useful magnification effect (of x7 to x10)
which is accomplished without the use of processor intensive DSP techniques -
but which can be used as a restated foundation level of endurance which can
then be used in conjunction with other proprietary endurance stretching
A simple way to state the market effect is like this.
MLC or TLC nand flash - whether 2D or 3D - can now be thought of as having 2
- the standard model rating of endurance, and also
Most of the
software based tricks which can be usefully applied to standard endurance can
still be used (if required) taking the improved NVMdurance base level of
endurance as the new starting point.
- the improved NVMdurance model rating of endurance (metascale advised,
life-cycle fitted, virtually hardened flash endurance).
Therefore what you have - in
effect - is a much greater pool of memory types.
SSD designers in
the NVMdurance era now have greater freedom to use simpler, lower power
controllers and cheaper (worse standard endurance flash) to get
DWPD ratings which
hitherto would have required more power hungry controllers or more expensive
memory (or rare inhouse flash controller talent).
Part of the
NVMdurance technology story is evolutionary but another part (the business
model and the disruptive market impact of its brute force systematic offline
characterization techniques) is revolutionary. I'll be saying more about those
in a follow up
In August 2013 -
endurance stretching characterization software was
to be one of the most innovative flash memory technologies seen at the
- Altera announced
availability of an FPGA flash controller reference design IP for NVMe PCIe
SSDs which used NAND life extension software from
announced a $2.5 million Series A round of financing.
|Back in the early 1990s it
was not uncommon to hear about specialist server companies which were using
peltier effect heat sinks to refrigerate the fastest workstation processors so
they could run at higher clock speeds. |
One of the biggest
bottlenecks in the past decade has been RAM architecture and DRAM implementation
|cool runnings - Rambus
to coach faster DRAM (April 2017)|
|SLC / MLC / TLC - tactical
/ permanent / real / virtual?|
If you've ever wondered about how to
optimize SSD design by using a mix of flash memory types in the same SSD then
this paper is an invaluable reference guide to the techniques which have been
written about in the public domain.
|tradeoffs in the design
of mixed flash hybrid SSDs (December 2017)|
inspired by the NVMdurance story
the big SSD ideas which emerged in 2016? /
upsides and downsides of hold-up caps in MIL SSDs
consequences of the 2017 memory shortages
indeterminate latencies and the virtual memory slider mix
has US patent for Adaptive Flash Tuning|
|Editor:- March 21, 2017 - NVMdurance today
that it has been granted US patent 9,569,120 for Adaptive Flash Tuning. |
patent covers NVMdurance's
, which discover optimal flash trim sets for the target
application and implement a set of optimization techniques that constantly
monitor the NAND flash health and autonomically adjusts the operating parameters
in real time.
|new funding for endurance
|Editor:- March 29 , 2016 - NVMdurance
it has completed a $2.5 million Series A round of financing. Existing investors
New Venture Partners, ACT Venture Capital, Enterprise Ireland and NDRC have
invested bringing total funding to $2.77 million.|
financing builds on an exceptional year from NVMdurance which saw its first
customer announcement with
Altera (now part of
Intel)" said Steve Socolof
of New Venture Partners LLC. "The NVMdurance software increases the number
of program-erase cycles in Altera's FPGA-based storage reference design by up to
7x times compared to existing NAND flash implementations."
comments:- NVMdurance says the power behind its endurance stretching IP is
the use of offline machine learning software that automatically learns the
optimal parameter settings for the NAND device.
based SSDs suffer the indeterminate delay inserted by the Flash Translation
Layer in its production of the of physical block addresses. |
one reason that All-Flash-Array architects like Pure Storage desire additional
physical control at the Flash Translation Layer.
system functions such as deduplication, compression, error coding, power-on
fill, data recovery ops, check pointing, and scrubbing are further accelerated
by this approach."
, CEO - Web-Feet
16, 2017) in his
announcing a new annual edition of the company's SSD market reports "NVMe
now, NVDIMM coming ".|