The PUREcluster™ Parallel NAS object-based architecture from Verari Systems™ offers a breakthrough capability: it dynamically distributes workload across a multitude of small, intelligent blades. PUREcluster Parallel NAS StorageBlade™ and DirectorBlade™ are perfectly tuned to work with and deliver outstanding performance from the PUREcluster Parallel NAS ActiveScale File System. As a result, the ActiveScale Storage Cluster™ delivers near linear scaling of performance with increases in capacity. Built from industry-standard hardware components, the sleek, hot-swappable blades slide easily into a 4U shelf, storing up to 5 terabytes (TBs) per shelf.

STORAGEBLADES
StorageBlades contain all application and user data and handle the vast majority of file system activity. As powerful as a stand-alone computer, each StorageBlade balances two Serial ATA disk drives with a processor, cache memory, and network I/O to optimize your file system activity. The PUREcluster Parallel NAS Storage Cluster can easily be scaled-in capacity and performance- simply by adding more StorageBlades. This payas- you-grow model means you won’t have to purchase a small system you’ll eventually outgrow or a system too large for your current requirements. The blades have the intelligence to manage all the detailed work associated with transferring data to and from drives—from prefetching to smart data layout-without requiring help from a file server as in traditional network storage approaches.

Intelligent StorageBlades work in concert with the PUREcluster Parallel NAS DirectFLOW™ software enabling a direct data path to clients (Linux clusters, application servers, or desktop PCs). As a result, very large files can be accessed much faster through simultaneous reads and writes to multiple StorageBlades. Each StorageBlade delivers up to 70 Mbytes-per-second peak throughput, nearly as much as an entire shelf of disk drives in competitive systems-at the same or lower price-per-gigabyte as individual Fibre Channel and SCSI drives.

DIRECTORBLADES
PUREcluster Parallel NAS DirectorBlades orchestrate key activities between clients and StorageBlades. Leveraging the PUREcluster ActiveScale File System, DirectorBlades virtualize data across StorageBlades enabling the system to be viewed as a single, easily managed namespace. Each DirectorBlade contains up to 4 gigabytes (GBs) of high-speed cache RAM and a Gigabit Ethernet connection to optimize system performance.

DirectorBlades can be clustered together to support highly scalable storage networks. DirectorBlades simultaneously support the PUREcluster Parallel NAS DirectFLOW, NFS and CIFS data protocols, enabling you to configure the PUREcluster Parallel NAS Storage Cluster to handle huge bandwidth requirements out-of-band, while still supporting record-breaking performance for standard NFS and CIFS clients. DirectorBlades automatically manage load-balancing-moving data from heavily accessed blades to lightly loaded ones-freeing administrators from timeintensive reorganization activities.

In an easy, granular fashion, you can continuously add DirectorBlades to the cluster to boost availability, and balance performance and capacity growth for your specific application needs. StorageBlades and DirectorBlades are the hardware foundation of the premier storage system for scalable Linux clusters. Built on an object-based architecture and optimized to meet the unique needs of Linux cluster customers, the ActiveScale Storage Cluster is designed to fundamentally enhance customer expectations for storage performance and management. It offers breakthrough performance-in throughput and random I/O-exceptional scalability, and greatly simplified management.