Dell EqualLogic PS6210XS EqualLogic Group Manager Administrator s Guide PS Ser - Page 28

Figure 3. PS Series Group with NAS Cluster Table 4. PS Series Group with NAS Cluster Callout 1 Description PS Series group Storage area network (SAN) comprising one or more PS Series arrays connected to an IP network. Arrays are high-performance (physical) block-storage devices. 2 NAS cluster Collection of NAS hardware (appliances) configured as part of a PS Series group. The FluidFS software runs on the cluster. 3 NAS appliances Hardware enclosures that contain NAS controllers. 4 NAS controllers Redundant, hot-swappable controllers in NAS appliances. The controllers interface over a fabric to the PS Series SAN storage. About Groups A PS Series group is a fully functional iSCSI storage area network (SAN). You create a group when you configure one or more PS Series arrays and connect them to an IP network. In this virtualized storage system, the arrays become group members and share configuration data. A member belongs to a storage pool, and is configured with a specific RAID policy. Each member cooperates with other members to enable the virtualization of disk storage, controllers, caches, and network connections. Because the virtualization technology masks the underlying complexity of the storage configuration, client servers see the group as a single entity, giving you a centralized view of the storage data. Figure 4. PS Series Group depicts PS Series groups. Table 5. PS Series Group explains the callouts used in the figure. 28 Architecture Fundamentals