SGI NAS is a powerful, enterprise-class NAS solution that provides the maximum of flexibility in a complete open storage offering. SGI NAS enables organizations to maximize their datacenter real estate with a scalable system that can start small and grow to multiple petabytes of unified storage.
SGI NAS includes full VM integration, even in mixed vendor environments, and can be expanded to extremely large global deployments with multi node clusters. With support for multiple NAS and SAN protocols, standard features such as inline deduplication and native compression, unlimited snapshots and cloning, unlimited file size, and high-availability support, SGI NAS is a powerful addition to the SGI InfiniteStorage ecosystem.
Hybrid Storage Pools
Hybrid Storage Pools (HSP) are the heart of the system and dictate overall performance. Primarily, initial capacity and the expected capacity growth, as well as IOPS and the read/write ratio between them, are the most dominant factors.
Block allocation algorithms of the Hybrid Storage Pool transform small random writes into a single, more efficient sequential write operation. Virtual machines invoke a large number of random read / writes, and the HSP provides intelligent methods of handling these unpredictable workloads.
With SGI NAS, these fundamental features dramatically accelerate performance. The Hybrid Storage Pool uses RAM, Solid State Devices (SSDs), and rotational drives all at once. As such, instead of just adding spindles, the design of the pool provides more degrees of freedom. Within the HSP, three different device types can be created: one virtual device type for cache (read operations); a log device (write operations); and a regular virtual device (capacity).
Built-in Space Savers
For more than a decade, storage system performance has remained rather stagnant while drive capacities and application performance demands steadily have increased. The result of this trend is an expensive problem: Storage users are forced into buying expensive hard disk drives (HDDs) to get a moderate performance boost (by reducing I/O latency) and/or forced into over-buying capacity in order to meet performance requirements.
With the advent and decreasing price of flash, storage vendors are integrating it into their products to solve this problem. SGI NAS ZFS technology is leading the industry in its ability to automatically and intelligently use flash in a storage system that offers the appropriate capacity and performance capabilities at a total cost that is dramatically lower than most legacy storage systems.