JEDEC reveals NVDIMM standard

Hardware Hub Storage
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http://www.sandisk.com/enterprise/ulltradimm-ssd/

its an ssd, that uses the dimm memory slot


Unlike DDR3 memory, the ULLtraDIMM SSD retains the data just as a HDD would.

The ULLtraDIMM connects into an industry-standard 240-pin DIMM slot, and features a LP 30mm x 133.35 RDIMM form factor. The DIMM is compatible with the JEDEC DDR3 protocol, and operates at the full DDR bus rate, from DDR3-800 through DDR3-1600. The device follows the same motherboard population rules that apply to standard DRAM sticks, and all communication with the host occurs on the memory bus. The device is interoperable with standard RDIMMs in the same channel, and appears as a single rank to the system. The ULLtraDIMM is compatible with Linux (RHEL, SLES, CentOS), Windows, and VMWare ESXI.

There are no physical modifications of existing hardware for ULLtraDIMM compatibility, but UEFI BIOS changes are required. The BIOS modifications disable memtest, reserve memory space for the device, and create an entry for the ULLtraDIMM in the ACPI table. ULLtraDIMMs are designed to fit within the power and thermal envelopes of the existing memory subsystem. The 12.5W power draw and heat dissipation are well within the tolerance of a standard server. The ULLtraDIMMs' vertically aligned heat sinks take advantage of the server's native linear airflow pattern.

the iops seem really low for something like that tho...
Interface DDR3
Read Latency 150 µsec
Write Latency as low as 5 ÎĽsec
Random Read (IOPS) 140K IOPS**
Random Write (IOPS) 44K IOPS**
Sequential Read (MB/s)** up to 880MB/s
Sequential Write (MB/s)** up to 600MB/s
Capacity**
19nm eMLC User Capacities** 200GB-400GB, Scalable across multiple memory slots

The real strength of the hardware is what happens when you start building out RAID 0 arrays. There are multiple cases in Tweaktown’s results where a single SanDisk UlltraDIMM isn’t particularly faster than a single Hitachi SAS 12Gbps SSD. Toss in two UltraDIMMs, and the near-perfect linear scaling blows other solutions out of the water. Because of the nature of the DIMM design, the linear scaling should extend well beyond the two-drive limit.

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so i guess
JEDEC reveals NVDIMM standard
has made the spec official now,
one more step to consumer level computer badassedry
http://hexus.net/tech/news/storage/83399-jedec-reveals-nvdimm-standard/

ARLINGTON, Va., USA – MAY 26, 2015 – JEDEC Solid State Technology Association, the global leader in standards development for the microelectronics industry, has announced that its JC-45 Committee has approved the first standards for support of “hybrid” DDR4 memory modules which are defined as modules that plug into standard dual in-line memory module (DIMM) sockets and appear like a DDR4 SDRAM to the system controller, yet contain non-volatile (NV) memories such as NAND Flash on the module.

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it won't catch up, its good concept, but thats about it. Its wasting memory slots.
(specs given can be accomplished by pci-e port)

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for that particular stick yea,
but now that it has a standardized spec,
any company under the sun can spit one out and start a war of whos best

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Confining I/O traffic within the NUMA architecture,
where applications and operating systems reside, provides access to a massively parallel bus

designed to scale linearly with no performance degradation as administrators add more devices.
Marrying the unadulterated connection of the memory bus with the inherent advantages of the Guardian Technology Platform yields impressive performance benefits and ultra-low latency.

ULLtraDIMM deployments will employ upwards of four devices in parallel. Synthetic workloads do not reveal full application performance of the storage medium,
but are a good indicator of scaling and performance available to applications.

Our results indicate near-linear scaling in a multitude of workloads, making it is easy to extrapolate performance with multiple devices.