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Storage management software – Dell PowerVault 775N (Rackmount NAS Appliance) User Manual

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HBA

Connects the cluster node's PCI bus to the storage system.

Storage system

Provides external storage for the host systems (cluster nodes and stand-alone systems). Supported

storage systems include tape libraries, DAEs, and SPEs.

SAN storage

management software

Provides centralized control of the SAN for easier management. These software management tools

include:

Navisphere Agent

Navisphere Manager

EMC PowerPath

Access Logix (optional)

MirrorView (optional)

SnapView (optional)

Backup software (optional)

SAN Copy (optional)

See "

Storage Management Software

" for a description of these software management tools.

Fibre Channel switch

(optional)

Provides a communications link between the servers, storage systems, and tape libraries.

Fabric (optional)

One or more switches, which may be connected together using interswitched links.

Storage Management Software

NAS clusters require additional software components to manage the communications between the cluster nodes and the

storage systems in a SAN environment.

Table 1-5

provides a list of Navisphere and Dell OpenManage™ software packages that are used in NAS cluster configurations.

See "

Minimum System Requirements

" for the storage management software required for your particular cluster configuration.

Table 1-5. Storage Management Software

Software

Function

EMC

PowerPath

Detects and re-establishes a failed connection to a processor enclosure caused by a communication failure,

such as a failed storage processor, SP port, link control card (LCC), HBA, switch, or fiber optic cable. Without

human intervention, PowerPath can automatically reroute the I/O through an alternate path when a failure

occurs to provide connectivity for running applications.

Additional features include:

Dynamic load balancing

Multiple path detection

Navisphere

Manager

Provides centralized storage management and configuration from a single management console. Using a GUI,

Navisphere Manager allows you to configure and manage the disks and components in one or more shared

storage systems.

Additional features include:

Creating, binding, and unbinding LUNs

Changing configuration settings

Monitoring storage systems

Navisphere Manager is installed on the Dell | EMC storage systems or a host system that has network access

to the storage system.

Navisphere

Agent

Provides an interface between the host systems and the Dell | EMC storage system, allowing Navisphere

Manager to send and receive information to and from the storage system connected to a host system.

Access

Logix

(optional)

Allows multiple cluster nodes and servers to share a Fibre Channel shared storage system. Access Logix

restricts server access to specific volumes on a shared Dell | EMC storage system and protects your data from

unauthorized access.