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Cluster Parameters Overview

The cluster parameters control creating, locating, and managing replicas for data chunks in a Parallels Cloud Storage cluster. All parameters can be divided into two main groups:

  • replication parameters
  • location parameters

The table below briefly describes each of the cluster parameters. For more information on the parameters and how to configure them, see the following sections.

Parameter

Description

Replication Parameters

Normal Replicas

The number of replicas to create for a data chunk, from 1 to 15. Recommended: 3.

Minimum Replicas

The minimum number of replicas for a data chunk, from 1 to 15. Recommended: 2.

Location Parameters

Failure Domain

A placement policy for replicas, can be room , row , rack , host (default), or disk ( CS ).

Tier

Storage tiers, from 0 to 3 (0 by default).

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