SGI OmniStor

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What is SGI OmniStor?
SGI OmniStor is a complete scale-out storage solution that offers the kind of flexibility and performance that is normally associated with conventional RAID platforms, but without the limitations of conventional architectures.

Unlike many object storage solutions with performance only suitable to archives, SGI OmniStor incorporates the best of both worlds, enabling disk-based scale out storage for public and private cloud architectures, while also enabling high performance NFS/CIFS and block storage access. And with support for SGI DMF tiered storage virtualization, SGI OmniStor enables IT managers the cost and data protection advantages of a cloud architecture while also bridging into conventional file system infrastructures. And this is possible at a lower cost than public cloud providers like Amazon S3.

Redefining Software-Defined Storage
SGI OmniStor is a software-defined storage solution bundled on differentiated commodity hardware, that delivers scalability, flexibility, performance and cost efficiency. For optimal performance and density, SGI OmniStor is deployed on SGI® Modular InfiniteStorage™, a 4-U storage server that can house 72 HDDs and one or two dual-socket motherboards. SGI OmniStor can also be built on virtually any x86 servers, transforming a server farm into a large storage pool that can be integrated with enterprise and cloud applications to support a range of private and public cloud services.

Applications can be connected to SGI OmniStor using any of a variety of interfaces including the Amazon S3 API, a dedicated OmniStor API, Openstack Swift, and the SNIA CDMI standard. SGI OmniStor can also provide NFS and CIFS/SMB access for conventional NAS connectivity, enabling the solution to be used as scale-out file system for on-premise usage.

SGI OmniStor's state-of-the-art software provides many key features for new cloud-enabled data centers. It uses a peer-to-peer model and establishes an end-to-end parallelism between the clients systems and storage nodes in the infrastructure. Data is protected via replication, both local or geographically distributed, and also with proprietary erasure coding technology called ARC. ARC tolerates multiple simultaneous failures without losing data or access to data. The default configuration for ARC offers support for up to four failures with a maximum additional hardware overhead requirement of 30%.

SGI OmniStor storage is a Distributed System made of independent nodes that can be replaced over time as new technology becomes available.

  • Object based
  • Distributed System
  • Distributed metadata
  • No Single point of failure
  • No limit to expansion
  • Performance comparable to conventional block storage
  • Lower TCO than public cloud providers

Configurations for Capacity and Performance
SGI OmniStor can be deployed in multiple different configurations, depending on the size of the environment, the growth rate of data, but also the performance level required.

File System configuration The File System configuration is geared for the higher performance environments, including those with NAS workflows on industry-standard protocols. The File System configuration is a mix of SSDs for fast metadata operations combined with SAS drives for reliability.

As with all OmniStor configurations, after an initial 6-node Ring is established, additional nodes can be added at any time without limitation. The system will automatically incorporate the new nodes and capacity into the Ring, and load-balance all of the data across all nodes. This is true whether it is 500TB, 100 petabytes or more, in a single location or distributed globally. There is no limitation to the scale of this system.
Volume configuration The Volume configuration is geared for the optimizing the cost of large volumes of data which might have lower performance requirements. The Volume configuration eliminates SSDs, adding additional HDD capacity to each node.

As with the other configuration one HTTP/REST connector runs on every server.

Conclusion
SGI OmniStor is the perfect architecture to address high demand cloud computing and storage challenges. This integrated solution offers the densest server system on the market today. Coupled with the leading object storage software and the latest Intel® Xeon® processors, it provides the most advanced, currently available software-defined storage platform. Easy to integrate with your applications, this business and data center ready platform represents the state-of-the art in cloud infrastructure today.