Nexenta Co-Founder and CTO to Share Best Practices on How to Optimize Scalability and Performance at Web Scale via Open Source-driven Software-Defined Storage at SNIA’s Storage Developer Conference

Santa Clara, Calif.—Sept. 17, 2015—Nexenta (@Nexenta), the global leader in Open Source-driven Software-Defined Storage (OpenSDS), today announced that Alex Aizman, Co-Founder and Chief Technology Officer, will speak at SNIA’s Storage Developer Conference (SDC)

Caitlin Bestler, Nexenta’s Senior Director of Architecture, and Aizman co-authored the presentation titled “Beyond Consistent Hashing and TCP: Vastly Scalable Load Balanced Storage Clustering”, which Aizman will share with the SDC attendees on Sept. 21.  The presentation discusses how to optimize scalability and clustering in your storage environment. Successive generations of storage solutions have increased decentralization. Early NAS systems made all the decisions on a single server, down to sector assignment. Federated NAS enabled dynamic distribution of the namespace across multiple storage serves. The first Object Clusters delegated CRUD-based management of both object metadata and data to OSDs.

Current generation of Object Clusters uses Consistent Hashing to eliminate the need for central metadata. However, Consistent Hashing and its derivatives, combined with the prevalent use of TCP/IP in storage clusters results in performance hot spots and bottlenecks, diminished scale-out capability and dis-balances in resource utilization.

These shortcomings will be demonstrated with a simulation of a large storage cluster. An alternative next generation strategy that simultaneously optimizes available IOPS "budget" of the back-end storage, storage capacity, and network utilization will be explained. Practically unlimited load-balanced scale-out capability using Layer 5 (Replicast) protocol for Multicast Replication within the cluster will be presented.

“I’m looking forward to conversing with fellow storage industry leaders and demonstrating how CCOW (Cloud Copy-on-Write) and Replicast can provide infinite scale-out,” said Aizman. “The objective is to help companies achieve high performance and scalability by creating more affordable clusters.”

SNIA is a non-profit organization advancing IT technologies, standards, and education programs for all IT professionals. The organization is more than 400 companies strong, spanning the global storage market, and connects the IT industry with end-to-end storage and information management solutions. SNIA’s SDC conference attracts more than 400 developers, technical professionals, and engineers from the worldwide storage community. The conference offers a broad range of topics including File Systems, Software-Defined Storage, SMB, Security, Performance, and more. 

Additional details on the event can be found below.

Tweet this: .@nexenta Founder/CTO, Alex Aizman to present #OpenSDS best practices @SNIA @SDConference: #OpenSDx

Event Details
What: SNIA’s Storage Developer Conference, Sept. 21-24
Where: Hyatt Regency Hotel, Santa Clara, CA
When:  3:35 p.m. PT, Sept. 21, 2015
Who: Alex Aizman, Founder and CTO, Nexenta

For more information and to register for this event, please visit:

About Nexenta
Nexenta is the global leader in Open Source-driven Software-Defined Storage (OpenSDS) with 6,000+ customers, 400+ partners, 33 patents, and more than 1,200 petabytes of storage under management. Nexenta uniquely integrates software-only “Open Source” collaboration with commodity hardware-centric “Software-Defined Storage” innovation. Nexenta OpenSDS solutions are 100% software-based; and 100% hardware-, protocol-, and app-agnostic providing organizations with Total Freedom protecting them against punitive vendor lock-in. Nexenta provides organizations with the "true" benefits of Software-Defined Everything-centric Cloud Computing – from data centers to end users; from the infrastructure to apps. Nexenta OpenSDS enables everyday apps from rich media-driven Social Living to Mobility; from the Internet of Things to Big Data; from OpenStack and CloudStack to Do-It-Yourself Cloud deployments – for all types of Clouds – Private, Public, and Hybrid. Founded around an "Open Source” platform and industry-disrupting vision, Nexenta delivers its award- and patent-winning software-only unified storage management solutions with a global partner network, including Cisco, Citrix, Dell, HP, Quanta, SanDisk, Seagate, Supermicro, VMware, Western Digital, Wipro, and many others. 

For more information, visit,, Twitter, Facebook, LinkedIn and YouTube. Also, download the newly published Nexenta Special Edition Software Defined Data Centers (SDDC) for Dummies eBook.

Nexenta, NexentaStor, NexentaConnect, NexentaEdge and NexentaFusion are trademarks or registered trademarks of Nexenta Systems Inc., in the United States and other countries. All other trademarks, service marks and company names mentioned in this document are properties of their respective owners.

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Media Contacts:
Allison Darin
Director of Communications and Public Relations, Nexenta