Dell DX6000G Manuale d'uso - Pagina 16

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Remote Cluster Configuration

When you deploy multiple DX Storage Clusters (for example multiple sites,

offsite backup, and so on), the DX Cluster Services Node provides the ability

to replicate data between DX Storage Clusters using the DX Content Router

software.

The DX Content Router provides two services:

•

Publisher service

•

Replicator service

Clusters are connected by one cluster's replicator service to another cluster's

publisher service. This link can either be one-way (for offsite backup) or

two-way (for mirrored configurations).

Each publisher can support a number of replicators with a specific set of

replication rules. The publisher does not provide same set of data objects to

each replicator.

For redundancy, more than one DX Cluster Services Node may be present in a

cluster, but only one DX Cluster Services Node can be active as a publisher at

any time.

NOTE:

There can be multiple publishers per cluster, but only the active (or primary)

Cluster Services Node can be the active subscriber.

Clusters may be connected by any type of link that can handle the desired

traffic volume. This link must be secured to prevent reading cluster data

being passed between clusters. See Figure 2-4.

Cluster data is passed directly between the two DX Cluster Services Nodes. It

is not recommended to have direct communication between storage nodes in

remote clusters.

For more information about multiple cluster configurations, see the Content

Router Setup and Configuration Guide at support.dell.com/manuals.

DX Object Storage Platform Overview