Administrator Guide

Table Of Contents
Figure 3. PS Series Group with NAS Cluster
Table 4. PS Series Group with NAS Cluster
Callout Description
1 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) congured 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 congure 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 conguration data. A member belongs to a storage pool, and is congured
with a specic 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
conguration, 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 gure.
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Architecture Fundamentals