Dell PowerVault 770N (Deskside NAS Appliance) - Manual (Page 5)

Each storage system in the cluster is centrally managed by one host system (also called a management station) running EMC
ControlCenter™ Navisphere Manager™—a storage management application used to configure Dell | EMC storage systems.
Navisphere Manager provides centralized storage management and configuration from a single management console. Using a
graphical user interface (GUI), you can select a specific view of your storage arrays, as shown in Table 1-1 .
Table 1-1. Navisphere Manager Storage Views
View Description
Storage Shows a "map" of the hardware configuration to identify hardware faults and shows the logical storage
components and their relationships to each other.
Host Shows the host system's storage group and attached LUNs.
Monitors Shows all Event Monitor configurations. These configurations include centralized and distributed monitoring
configurations.
You can use Navisphere Manager to perform multiple tasks, such as creating RAID groups, binding LUNs, and downloading
firmware. Combined with Access Logix, administrators can manage and control data access across multiple heterogeneous
hosts in distributed SANs.
Optional software for the shared storage systems include:
EMC MirrorView™ — Provides synchronous mirroring between two storage systems in a campus environment.
EMC SnapView™ — Captures point-in-time images of a LUN for backups, decision support, or testing without affecting
the contents of the source LUN.
EMC SAN Copy — Moves data between Dell | EMC storage systems without using host CPU cycles or LAN bandwidth.
See " Installing and Configuring the Shared Storage System " for more information about Navisphere Manager, Access Logix,
MirrorView, SnapView, and SAN Copy.
See " Shared Storage Systems " for a description of the shared storage systems for the NAS cluster solution.
NAS Fibre Channel Cluster Solution
The NAS Fibre Channel cluster solution implements two-node clustering technology based on the MSCS software incorporated
within the Windows Storage Server 2003, Enterprise Edition operating systems. This cluster solution provides the following
benefits in meeting the needs of mission-critical network application programs:
2 Gb/s Fibre Channel technology
High availability of system services and resources to network clients
Redundant storage for application program data
Failure recovery for cluster application programs
Flexible maintenance capabilities, allowing you to repair, maintain, or upgrade a cluster node or cluster storage system
without taking the entire cluster offline
Each cluster node is configured with software, storage, and network resources that enable it to monitor and interact with the
other nodes to provide mutually redundant operation. If a cluster node fails for any reason, virtual servers and resources
groups running client resources are failed over to other healthy cluster nodes. When the failed node is repaired and brought
back online, the virtual servers and resource groups are failed back to the repaired node (if desired).
The cluster nodes, therefore, operate as a single resource, rather than a collection of individual systems. Because the cluster
nodes interact in this way, they appear as a single system to the network clients.