Dell EqualLogic PS4210X EqualLogic Group Manager Administrator s Guide PS Seri - Page 46
About NAS Architecture, NAS Hardware Architecture, Table 8. NAS, Hardware Architecture
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About NAS Architecture NAS architecture is an advanced clustered architecture, providing the performance of a networked file system with the efficiency of a storage system. Figure 6. NAS Hardware Architecture shows a typical configuration, although other types of configurations are possible. Table 8. NAS Hardware Architecture explains the callouts used in the figure. Figure 6. NAS Hardware Architecture Table 8. NAS Hardware Architecture Callout 1 Description PS Series group (partial) 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. 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. Figure 7. NAS Software Architecture shows a logical representation of the NAS cluster. Table 9. NAS Software Architecture explains the callouts used in the figure. 46 Architecture Fundamentals
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