About Plexistor

Plexistor is the first to implement the new and innovative Software Defined Memory architecture (SDM). We are enabling enterprises to process huge amounts of data at near-memory speed, and respond to customer needs with faster response time. Plexistor SDM provides persistent high capacity storage at near-memory speed for in-memory applications and middleware, overcoming the fundamental limitations of traditional memory technology such as low capacity, cost, and volatility.

Plexistor enables both on premise and cloud-based infrastructures to support in-memory applications and middleware to process huge working data sets and achieve near-memory speed.


Our mission at Plexistor is to change the
fundamental concepts of In-Memory Computing
Sharon Azulai
Amit Golander

Upcoming Events

Don't miss your chance to attend SNIA's 5th Annual Persistent Memory Summit. This innovative one-day event brings together industry leaders, solution providers, and users of technology to understand the ecosystem driving system memory and storage into a single, unified “persistent memory” entity. 2017's focus will be on persistent memory applications. Sessions will include speakers from Micron, Microsemi, Microsoft, Symbolic IO, Open Fabric Alliance, SAP HANA, the SNIA NVDIMM Special Interest Group, the SNIA NVM Programming Technical Work Group, and UCSD

Dates: Jan 18, 2017
Location: The Westin San Jose (formerly the Sainte Claire Hotel), San Jose, CA USA

In The News

Couchbase and Plexistor Demonstrate a Faster, more Durable and Easier to Manage NoSQL Database
June 15, 2016
Plexistor and Couchbase released results of benchmarking the new Couchbase Server 4.5 as a cluster of containers leveraging Plexistor's Software Defined Memory (SDM). The results showed that Plexistor's SDM sped up the Couchbase Server 4.5 throughput and latency allowing Couchbase users to sustain much higher throughput with full persistence.
Flexi-Plexistor's software-defined memory roadmap - storage-class memory emerging in software
April 25, 2016
Startup Plexistor's SDM software is said to run any application at near-memory speed by using caching and tiering. It has a file system that covers DRAM, NVDIMM-N (byte-addressable flash DIMMs fully mapped to memory space and accessed at cache-line granularity), NVDIMM-F (block-addressable flash DIMM on memory bus), forthcoming XPoint, and SSDs.
HPE is going to unleash a Machine on us. Here's how it might play out
April 12, 2016
At the far end of HPE's storage and compute strategy is the Machine, the dynamically composable infrastructure thing with separately scalable compute, memory/storage and networking resources.
The non-volatile memory revolution: Bigger than SSDs
April 8, 2016
NAND flash SSDs have revolutionized the storage world in the last 10 years. But non-volatile memory (NVM) is a much bigger deal than SSDs could ever be. Here's why Intel and Microsoft are behind it.
Tiering Isn’t Dead
April 5, 2016
With advent of flash came a whole host of new storage vendors, with many claiming a new from the ground up architecture was required to get the full benefits of flash. This meant for many of the new players they chose to go down the all flash route, which allowed a strong disk is dead marketing message.
Plexistor’s Software Defined Memory
April 5, 2016
Unlike most of the software defined x menagerie, SDM isn’t simply another layer that virtualizes existing infrastructure for some magical benefit. It addresses the oncoming reality of large non-volatile memories – i.e. 3D XPoint – that can be used as either memory or storage.
Memory-based storage? Yes, please - Just a few compromises first
April 4, 2016
We could argue that any application can benefit from a larger amount of memory, but that's not always true. Some applications are not written to take advantage of all the memory available or they simply don't need it because of the nature of their algorithm.
You had me at Tiered Non-Volatile Memory!
March 21, 2016
Memory isn’t cheap! Despite the falling costs and increasing sizes of DRAM DIMMS, it’s still damned expensive compared to most non-volatile media at a price per GB. What’s more frustrating is that often you buy all of this expensive RAM, assign it to your applications, and find later through detailed monitoring, that only a relatively small percentage is actually being actively used.
Plexistor – More hope on the horizon for Large In-Memory databases
March 18, 2016
It seems as one of the most interesting areas in computing today is that of memory as storage and storage as memory. The use case here is very interesting. If we begin with the premise that the constant get and push from storage, even if that storage is local is inefficient, slow and cumbersome, and we realize that as databases are growing in size to such vast proportions as to outgrow capacities. We’ve used clustered servers, larger and faster storage, and broken the databases into component parts in efforts to gain access to the data appropriately.
Plexistor at Storage Field Day 9
March 10, 2016
Plexistor sell something they want to call “Software Defined Memory” which is an odd term that feels like trying to jump on the bandwagon of calling things software-defined. I guess the thinking is that it’s a variation of software-defined storage, but applying to memory.
Plexistor SDM Community Edition to converge memory, storage
January 28, 2016
Venture-backed Israeli startup Plexistor made its debut Tuesday with a software platform that uses nonvolatile memory as primary storage. Plexistor describes its product as software-defined memory (SDM) that provides high-capacity persistent storage at near-memory speed. The vendor claimed it allows storage for both in-memory databases and traditional enterprise applications to run without dedicated compute-storage clusters.
Plexistor rolls out software-defined memory for the masses
January 27, 2016
Storage startup Plexistor has a persistent memory software product that enables applications to use storage memory and get 3-digit performance increases, using DRAM, flash and XPoint memory. The software-defined memory (SDM) architecture can use DRAM, flash and XPoint memory and is intended as a solution for applications that are hindered by I/O bottlenecks and latency. Use cases cited by Plexistor are fairly numerous and include digital advertising, log analysis, personalization, financial applications, cybersecurity, and DevOps.
Flash And 3D XPoint Are Better Together, Plexistor Launches Software Defined Memory
January 26, 2016
Plexistor aims to bring the inherent benefits of software-defined architecture to the storage and memory tiers, including bleeding-edge NVDIMM and 3D XPoint products, with the release of its Software Defined Memory (SDM) architecture.
Plexistor Introduces Game-Changing Software-Defined Memory Platform for in-memory compute and data intensive applications
January 26, 2016
MOUNTAIN VIEW, Calif., Jan. 26, 2016 /PRNewswire/ -- Startup Plexistor today announced the availability of its next-generation data center platform based on the new Software Defined Memory (SDM) architecture, converging memory and storage technologies to deliver persistent high capacity storage at near-memory speed.
Plexistor Introduces Its Software-Defined Memory Platform
January 26, 2016
Today a new Startup company, Plexistor, is introducing its new platform that is based off of Software-Defined Memory (SDM), the Plexistor Solution. With SDM Plexistor can converge memory and storage technologies together to deliver what they are calling persistent high capacity storage at near-memory speed. This new solution supports both traditional and next-generation applications.
Tech Alert: How Software-defined memory will benefit businesses, IT, and developers
January 12, 2016
Current large IT infrastructures are challenged to deliver the needed performance, scale, and capacity for the latest generation of applications such as in-memory databases, big data analytics, and complex data processing. 2015 saw the standardization of non-volatile DIMM (NVDIMM) components and upcoming storage-class memory devices...
Converging Your Way to a New Data Center
January 12, 2016
Vested interests in the IT industry have a lot riding on the hope that the enterprise will want to keep some of its infrastructure in-house rather than push everything onto the cloud as the decade unfolds. But this is only likely to happen if on-premises hardware is low-cost, highly scalable and maintains a tight footprint.
SNIA & Plexistor Demonstrate DDR4 NVDIMM – Storage Visions 2016 Update
January 4, 2016
On display at the Storage Networking Industry Association (SNIA) was a demonstration of Plexistor’s software defined memory with Smart Modular technologies DDR4 NVDIMM, which compares the throughput and latency of an Intel 750 NVMe PCIe SSD to their DDR4 NVDIMM. SNIA also demonstrated their latest storage certification that allows you to further your knowledge of storage solutions to the SNIA standard.
Israeli Start-Up Recently Discovered: Plexistor
December 28, 2015
Start-up Plexistor Ltd will soon be unveiling a Software-Defined Memory (SDM) platform for next-generation data centers, bringing convergence of memory and storage technologies together, enabling high capacity persistent storage and near-memory speed by providing a direct data path from the application to the memory storage device.
Plexistor Launches to Revolutionize Compute Paradigm with Software-Defined Memory
December 15, 2015
Plexistor announced today that it will soon be unveiling a Software-Defined Memory (SDM) platform for next-generation data centers, bringing convergence of memory and storage technologies together, enabling high capacity persistent storage and near-memory speed by providing a direct data path from the application to the memory storage device.

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Sharon Azulai

With a proven track record of building successful startups and an extensive background in global private equity and venture-backed technology markets, Sharon Azulai, drives Plexistor’s strategic vision, strategy and technology leadership. His experience includes roles in creating new markets and rapid revenue growth by leveraging disruptive technologies and innovation. Azulai is a dynamic agent of change with an entrepreneurial nature and high energy level. He combines business acumen, innovation management, collaboration and negotiation skills and

Azulai is a serial entrepreneur who has founded several technology companies. Prior to Plexistor he was CEO and founder of Tonian, a software company developing the next generation in high performance NAS scale out storage for virtualization prior to its acquisition by Primary Data in August of 2013. Prior to Tonian, he was a venture partner at Blumberg Capital, an early-stage venture capital firm focusing on investing in innovative and disruptive digital and social media, SaaS/Technology.


Amit Golander

Dr. Amit Golander is the Chief Technology Officer (CTO) and R&D Manager for Plexistor. His responsibilities are to develop the product and work with CEO, Sharon Azulai, on the vision for the technology and products.

Golander brings a rich research, development, and leadership background to Plexistor where he has distinguished himself in both the corporate, startup and higher educational realms.In addition to his work in the business and academic sectors, Golander holds over 50 patents and has published a number of technology articles in prestigious engineering journals.

Prior to Plexistor, Golander was VP of Systems and Product for Primary Data where he was responsible for strategic partnerships, alliances and beta customers as well as worked closely with the R&D teams on the day-to-day product management.Golander also worked for IBM for over twelve years on data center and cloud infrastructure.

Golander has also mentored M.Sc. students and taught computer architecture and quantitative analysis at Tel Aviv University.

Golander received his B.Sc. in C.S.and EE and his Ph.D. from Tel Aviv University in the field of computer architecture. His thesis won the Intel Research Award. Prior to his academic studies, Golander served as an intelligence officer in the Israeli Defense Force (IDF).

Currently Golander resides in Tel-Aviv, Israel