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This chapter contains the following sections:
The EMC Isilon storage system consists of three or more nodes that make a cluster. Each node is a self-contained, rack-mountable device that contains industry standard hardware, such as disk drives, CPU, memory, and network interfaces. Each EMS Isilon system is integrated with the OneFS operating system (OS) that is based on FreeBSD.
OneFS unifies a cluster of nodes into a single shared resource. OneFS also has a file-striping functionality across each node in a cluster, a fully distributed lock manager, caching, fully distributed metadata, and a remote block manager to maintain global coherency and synchronization across the Isilon cluster.
The Isilon cluster is a single storage pool with a global namespace. This cluster enables you to support multiple volumes and file systems.
Cisco UCS Director manages, monitors, and does reporting for the EMC Isilon system. Data is collected through the Isilon cluster platform and namespace REST API, which is connected to Cisco UCS Director through HTTP or HTTPS. This data is parsed and bound to the output as Plain Old Java Objects (POJOs), and these objects are distributed throughout the pod.