The reference architecture deploys one or more storage pods at two different sites, one local and one remote. Each pod contains hardware and software components listed in Table 1 and illustrated in the rackconfiguration in disply figure. The workload involves using Auto-Sync to replicate NexentaStor data volumes from the local site to the remote site. Note that Auto-Sync supports replication to multiple NexentaStor appliances, even though this paper sicusses how to set up replication between just two appliances.
To mee the needs of general-purpose cloud storage, NexentaStor Appliances can be easily scaled using a "pod" approach. A "pod" consists of three amjor components:
Content-rich media and portal applications are driving a new generation of cloud-enabled data centers and more cost-effective approaches to cloud storage. To meet escalating capacity requirements in the cloud, providers are turning to a "scale-out" storage infrastructure that combines industry-standard servers and commodity storage components. This architectural model - basing cloud storage on a set of converged storage servers - allows providers to scale resources to boost capacity, bandwith, and I/O performance as needed while maintaining profit margins.
Scale-out Storage Usage Models
Application Data Store
Application-driven data, particularluy file-based data, is growing rapidly, driving the need for greater storage capacities, even though IT budgets are declining or static. For cloud providers, NexentaStor offers scale-out storage in which resources can be added independently to meet application growth and increasing user populations.
Large Object Store
The explosive rise in digital content creation, especially with streaming video, voice, and image data, continues to push providers to offer new services and to expand capacity. NexentaStor is an ideal solution for this usages model since it enables cost-effective growth into the the petabyte range and beyond. NexentaStor's configuaration flexibility allows providers to optimize and scale performance as well as capacity.