http://www.intel.com/content/www/us/en/solid-state-drives/optane-ssd-dc-p4800x-brief.html
http://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/optane-ssd-dc-p4800x-brief.pdf
http://www.intel.com/content/www/us/en/architecture-and-technology/intel-optane-technology.html
http://www.tomshardware.com/news/intel-3d-xpoint-optane-dc-p4800x,33938.html
The Intel Optane SSD DC P4800X series combines some attributes of both memory and storage. This results in high throughput, low latency, high QoS, and high endurance.
Intel's DC P4800X will initially come to market as a 375GB AIC (Add-In Card) with a $1,520 price point, or roughly $4.05 per GB, and is available today. The company will add 750GB and 1.5TB capacity points in both AIC and U.2 form factors. By comparison, we can find Intel's exotic dual-SSD DC P3608, which is currently the company's fastest NAND-based offering, for roughly $1.64 per GB at retail. The DC P4800X carries a hefty premium over NAND-based SSDs, but performance and endurance are the key metrics that will provide far more value for intense workloads.
3D XPoint is fast enough to be used as a slower tier of memory that delivers many of the same advantages of DRAM, but at a much lower cost and in a denser package. The industry is hard at work developing the underpinnings of addressing next-generation non-volatile memories with normal memory semantics, but Intel also offers its value-add Memory Drive Technology. The Memory Drive Technology software merges the DC P4800X into the memory subsystem so that it appears as part of a single large pool of memory to the host.
The technique has tremendous potential, especially in the in-memory compute space, and it will be a huge attraction to hyperscale data center operators. Most importantly, it doesn't require any changes to the existing operating system or applications. The software is supported only on Intel Xeon platforms and adds $430 to the price of the Optane solution.
By default, the Memory Drive Technology software will present to the guest OS a NUMA topology equivalent to the underlying DRAM configuration plus a pool of memory that is not local to any of the processors, with capacity equal to the virtual memory provided by the Optane SSDs. However, this is implemented purely for the sake of allowing NUMA-aware software to adapt its usage patterns; regardless of the NUMA configuration seen by the guest software, the Memory Drive Technology software will not be statically allocating specific address ranges to DRAM or Optane storage. The approach taken by the Memory Drive Technology software allows operating systems and applications to function without modification and without requiring Optane-specific optimizations, but it also means there is no way for applications that are NUMA-aware or use system calls like madvise to communicate directly with the real memory allocator.
| Intel Optane SSD DC P4800X Specifications | ||||
| Capacity | 375 GB | 750 GB | 1.5 TB | |
| Form Factor | PCIe HHHL or 2.5" 15mm U.2 | |||
| Interface | PCIe 3.0 x4 NVMe | |||
| Controller | Intel unnamed | |||
| Memory | 128Gb 20nm Intel 3D XPoint | |||
| Typical Latency (R/W) | <10µs | |||
| Random Read (4 KB) IOPS (QD16) | 550k | TBA | TBA | |
| Random Read 99.999% Latency (QD1) | 60µs | TBA | TBA | |
| Random Read 99.999% Latency (QD16) | 150µs | TBA | TBA | |
| Random Write (4 KB) IOPS (QD16) | 500k | TBA | TBA | |
| Random Write 99.999% Latency (QD1) | 100µs | TBA | TBA | |
| Random Write 99.999% Latency (QD16) | 200µs | TBA | TBA | |
| Endurance | 30 DWPD | |||
| Warranty | 5 years (3 years during early limited release) | |||
| MSRP | $1520 | TBA | TBA | |
| Release Date | March 19 (HHHL) Q2 2017 (U.2) | Q2 2017 (HHHL) 2H 2017 (U.2) | 2H 2017 | |
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