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DDRdrive LLC
is now shipping the DDRdrive X1, a PCI Express solid-state storage accelerator
with over 300K random IOPS performance. Based on a breakthrough architecture
that integrates both DRAM and NAND to provide unparalleled random IOPS, IOPS/W,
and IOPS/$ performance. The DDRdrive X1 is "The drive for speed". |
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See also:-
DDRdrive
- editor mentions on STORAGEsearch.com | |
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Editor:- July 23, 2015 - Whatever happened to
the market idea of RAM SSDs integrated with PCIe interfaces?
The
early market promise of this concept probably got killed off by
hybrid DIMMs -
which are essentially RAM SSDs with a DRAM interface and form factor. If your
SSD needs can be satisfied by low multiples of 8GB DRAM - then that's probably
a better solution to explore instead.
On the other hand - if your
need much bigger capacities and flash - then the
SSD software writers
are getting cleverer at bypassing legacy stacks (and
co-operating
with them) which gives you more viable options for
SSDservers than
used to be the case. |
|
Who's
who in SSD? - DDRdrive
by
Zsolt Kerekes,
editor - StorageSearch.com
October 2011
DDRdrive's PCIe RAM SSDs don't have the same
IOPS problems
as flash SSDs but do have much lower capacity. They can be an economic choice
for some classes of applications. Although the company started in the Intel
market - they are now moving into the
Solaris market too.
If
you're considering products from DDRdrive then you should also look at flash
based competing
PCIe SSDs from these
companies too:- Foremay,
Fusion-io,
InnoDisk,
LSI,
OCZ and
Texas Memory Systems.
...Later:-
- In 2015 PMC
markets a product line of PCIe RAM SSDs - called Flashtec NVRAM drives - which
are similar in concept to DDRdrives.
Another alternative for low
capacity, flash backed RAM tiers is
hybrid DIMMs. |
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November 2006
- DDRdrive started shipping its 1st generation of SSD accelerators for use
in an undisclosed secret project inside Intel.
In
May 2009
- the company emerged from stealth mode and launched the
DDRdrive X1 - a
PCIe compatible
RAM SSD with onboard
flash backup. Backup / restore time is 60S. Performance is over 300K IOPS
(512B). R/W throughput is 215MB/s and 155MB/s respectively. Capacity is 4GB. OS
compatibility:- Microsoft Windows (various). Price is $1,495.
The
DDRdrive X1 looks competitively priced for accelerating database applications in
which the hot files can utilize a capacity range from about 4GB to 12GB.
Above that - you get into the region of entry level
rackmount SSDs
and high performance PCIe
flash SSD cards
from companies like Fusion-io
and Texas Memory Systems.
There's definitely a gap in the market for this scale of product (low
entry price, low capacity - high IOPS).
In November 2010 -
DDRdrive published a white paper which compares
flash SSDs vs RAM SSDs
(pdf) as accelerators in ZFS environments. |
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| The idea of using flash as
a new memory tier isn't new. And neither is the idea of using flash in DRAM
memory slots. But in 2014 there were several developments which added weight to
the usefulness of these ideas. |
| 12 key SSD
ideas which changed in 2014 | | |
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| the 3 fastest PCIe
SSDs? |
Are you tied up in
knots trying to shortlist flash SSD accelerators ranked according to
published comparative benchmarks?
You know the sort of thing I mean -
where a magazine compares 10 SSDs or a blogger compares 2 SSDs against each
other.
It would be nice to have a shortlist so that you don't have to
waste too much of your own valuable time testing unsuitable candidates
wouldn't it?
If my article -
the 3 fastest PCIe
SSDs list (or is it really lists?) may help you cut that Gordian
knot.
Hmm... you may be thinking that StorageSearch's editor never
gives easy answers to SSD questions if more complicated ones are available.
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