The basic Cisco components of the UCS are:
UCS manager: Cisco UCS Manager implements policy-based management of the server and network resources. Network, storage, and server administrators all create service profiles, allowing the manager to configure the servers, adapters, and fabric extenders and appropriate isolation, quality of service (QoS), and uplink connectivity. It also provides APIs for integration with existing data center systems management tools. An XML interface allows the system to be monitored or configured by upper-level systems management tools.
UCS fabric interconnect: Networking and management for attached blades and chassis with 10 GigE and FCoE. All attached blades are part of a single management domain. Deployed in redundant pairs, the 20-port and the 40-port offer centralized management with Cisco UCS Manager software and virtual machine optimized services with the support for VN-Link.
Cisco Fabric Manager: manages storage networking across all Cisco SAN and unified fabrics with control of FC and FCoE. Offers unified discovery of all Cisco Data Center 3.0 devices as well as task automation and reporting. Enables IT to optimize for the quality-of-service (QoS) levels, performance monitoring, federated reporting, troubleshooting tools, discovery and configuration automation.
Fabric extenders: connect the fabric to the blade server enclosure, with 10 Gigabit Ethernet connections and simplifying diagnostics, cabling, and management. The fabric extender is similar to a distributed line card and also manages the chassis environment (the power supply, fans and blades) so separate chassis management modules are not required. Each UCS chassis can support up to two fabric extenders for redundancy.