Dell PowerVault DX6112 Руководство пользователя - Страница 10

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Figure 2. Redundant DX Cluster Services Nodes

Subcluster Configuration

A Dell DX Storage Cluster can be split into two or more subclusters. The subclusters are physically part of the same

cluster but are recognized as logically separate entities by the DX Object Storage software that provides local area

replication.

A subcluster can be:

•

A set of nodes within one physical group (such as building, floor, wing, and so on)

•

An environmental group (such as rack, network switch, and power circuit)

•

Any other defined groups

NOTE: If the building or power circuit fails, other nodes have an optimal set of data replicas.

All DX Storage Nodes within the DX Storage Cluster have the same network connectivity requirements. The DX Storage

Nodes must be in the same IP subnet, must be able to participate in multicast and UDP traffic, and so on. Clients may

address DX Storage Nodes within any subcluster and are redirected to the proper DX Storage Node. As a result,

application awareness of a subcluster configuration is not required.